SECTION 2. LAND RESOURCES

Compiled by Richard Lathrop, David Tulloch, and Colleen Hatfield, Rutgers University Center for Remote Sensing and Spatial Analysis; and Brett Butler and Margaret Miller-Weeks, USDA Forest Service

 

2-1. Introduction

 

The New York–New Jersey Highlands Regional Study: 2002 Update was coordinated by the USDA Forest Service, Northeastern Area, State and Private Forestry and carried out in cooperation with the State Foresters of New York and New Jersey, Rutgers University, the U.S. Geological Survey, and the Regional Plan Association.  The Forest Service provided funding for various components of the Study, including planning assistance, linkage among Study participants, and coordination of public outreach and involvement.

 

The update of the Study was guided by the 1992 Highlands Regional Study contents in regard to the Vision and Goals for the Highlands Region.  However, the resource assessment and analysis portions of the Study were expanded based on the availability of spatial data and improved analytical techniques.  The assessment and analysis portions of the Study, as documented in this Technical Report, were organized around questions that were developed using available knowledge and listening session input.  These questions were:

·        Where are the natural resource conservation priority areas?

 

This New York–New Jersey Highlands Regional Study Technical Report, accompanies the New York–New Jersey Highlands Regional Study: 2002 Update.  The Study Update synthesizes and provides findings and some interpretation of the analyses conducted, but does not provide an exhaustive compilation of all possible scenarios for change.  The Technical Report provides greater detail on the data sources, methodology, and results concerning the assessment and analysis conducted as part of the Study Update.

 

The overarching question that the New York–New Jersey Highlands Regional Study Technical Report addresses is: what are the implications of continued land use change patterns on Highlands resources?  In this respect the report focuses on an assessment of five main natural resources: water, biodiversity, recreation/open space, forest land and farmland.  Trends in population and land use/land cover change are analyzed.  Several future land change scenarios are developed and the possible consequences of this projected future land use change and population growth examined.  The Technical Report focuses on a 1.4 million acres study area covering the New York and New Jersey portions of the Highlands physiographic province (Figure 2-1).

 


 

 

 

 

 

 

 

 

 

Figure 2-1. Location map of New York–New Jersey Highlands study area.


2-2. Resource Assessment and Conservation Values

Forest and Timber

 

Introduction

The ridges and uplands of the Highlands are noted for their rich and diverse forests with the exception of major farming areas in the lower river valleys of the Delaware, Musconetcong / Pohatcong, and Wallkill Rivers.  These forests serve as a great timber resource among many other purposes.  The active management of the Highlands forests as a “working landscape” to produce wood and other forest products was a major goal of the 1992 New York–New Jersey Highlands Regional Study and is still an issue of concern today.

 

Objectives

The primary objective was to examine the status of forests and timber resources in the New York–New Jersey Highlands study region.  A secondary objective was to map the lands under active forestry management through the Forest Stewardship Program, a Federal-State cooperative program designed to promote responsible forest management and the maintenance of forest lands in timber production.

 

Methods

In addition to the land use and land cover analysis undertaken as part of this study, reports produced by the USDA Forest Service as part of the Forest Inventory and Analysis (FIA) provided the basis for an updated assessment of forest and timber resources of the New York–New Jersey Highlands study region.  FIA data were analyzed for the counties included in the New York–New Jersey Highlands study region (Dutchess, Orange, Putnam, Rockland and Westchester in NY; and Bergen, Hunterdon, Morris, Passaic, Somerset, Sussex, and Warren in NJ).  Reports for New York State were available for the years of 1980 and 1993 (Considine and Frieswyk, 1982; Alerich and Drake, 1995).  Reports for New Jersey were available for 1987 and 1999 (DiGiovanni and Scott, 1990; Griffith and Widmann, 2001).

 

Both the New Jersey Department of Environmental Protection’s (NJ DEP) Department of Parks and Forestry and the New York State Department of Environmental Conservation (NYS DEC) compiled information on lands under Forest Stewardship.  Stephanie Diamond of the NYS DEC digitized the centroid location for each Forest Stewardship property.  These data were plotted and the attributes analyzed.

 

Results

Forest represents the largest land cover class in the Highlands and occupies approximately 825,000 acres of land (Figure 2-2).  The majority of the Highlands timberland is classified by the FIA as deciduous forest.  Oak/hickory is the dominant forest type composing 53 percent of the Highlands timberland.  Three oak species: black (Quercus velutina), white (Quercus alba) and red (Quercus rubra), are the most frequently occurring species.  Northern hardwoods cover 25 percent and swamp hardwoods (i.e., elm/ash/red maple) at 11 percent of the Highlands (Table 2-1).  These forest types include sugar maple (Acer sacchurum), red maple (Acer rubrum), tulip tree (Liriodendron tulipifera), American beech (Fagus grandifolia), white ash (Fraxinus americana), and birch (Betula spp.).  Conifer-dominated forest types, represented as white/red pine/spruce/fir and the oak/pine forest types, compose approximately 5 percent of the Highlands forests.  The Eastern hemlock (Tsuga canadensis) is intermixed with other species in cooler, moister areas.

 

The amount of forest land classified as timberland by the USDA Forest Service is holding steady in the New York–New Jersey Highlands.  The USDA Forest Service classifies timberland as forested land that is capable of both sustaining good tree growth, and that is not legally or administratively reserved from timber harvesting.  In New York, the amount of timberland decreased by approximately 7.5 percent from 1980 to 1993 (Table 2-2).  In New Jersey, the amount of timberland increased by over 6 percent during the 1987 to 1999 time period and the amount of forest land increased by approximately 10 percent over the same time period (Table 2-2).  Some of this increase is likely due to a change in the definition of forest land in New Jersey’s most recent FIA inventory (Griffith and Widmann, 2001).  The more recent inventory uses a more inclusive definition of forest land and therefore small forested areas (e.g., rights-of-way and in certain urban areas) that were previously classified as nonforest were reclassified as forest (Widmann, per. comm.).  Due to sampling errors associated with the FIA estimates, the change in timberland may not be statistically significant.  The FIA estimates that the Highlands have experienced a 24 percent increase in net volume of total stock between the 1980’s and 1990’s (Table 2-2).  The annual removal is less than half of the net growth of growing stock (16,827 removal vs. 38,046 growth, in thousands of cubic feet) and approximately one third for sawtimber (43,267 removal vs. 123,000 growth, in thousands of board feet) (Table 2-3).

 

A comparatively small percentage of forest in the Highlands is enrolled in the Forest Stewardship program (10,867 acres in New York and 5,627 acres in New Jersey) (Figure 2-2).  This represents 1.5 percent of New York State’s greater Highlands timberland, and less than 1 percent of New Jersey’s greater Highlands timberland.  180 properties in the New York–New Jersey Highlands are enrolled in the Forest Stewardship Program with an average size of 90 acres per property.

 

Discussion

The FIA reports for New York and New Jersey give a somewhat different picture concerning trends in timberland area as compared to the land use and land cover analysis undertaken as part of the study and discussed in Section 2-3. of this report.  The land use and land cover analysis suggests that area of forest land has decreased during the same 1980’s to 1990’s time period.  We estimate that, between the years of 1995 and 2000, the amount of forest land (including both upland and wetland forest) in the Highlands decreased at a rate of 3,400 acres per year.  This is an increase over the estimated loss of 1,534 acres per year between 1984 and 1995.  The FIA reports suggest that timberland area is holding steady.  These differences may be due to a number of reasons, including differences in definition (i.e., the more inclusive category of forest land vs. FIA’s more restrictive definition of timberland) and methods (i.e., the FIA’s sampling methodology vs. “wall-to-wall” land cover mapping).

 

With the abandonment of farming and extensive timber harvesting in the late 19th and early 20th century, Highland forests are continuing to mature and increase in volume.  The FIA data suggests that the timber stocks between the 1980’s and 1990’s increased by nearly 25 percent.  With annual removals at less than half of the net growth of growing stock and approximately one third for sawtimber, it would appear that the Highlands timber resource is comparatively underutilized and could sustain higher harvesting rates.

 

The Forest Stewardship program actively promotes sustainable forest management.  It is a preferential assessment program that gives landowners a reduced tax rate in exchange for their promise not to develop the land, as well as put their land in active forest management.  Whereas a majority of the New York–New Jersey Highlands forest area is in private ownership only a comparatively small percentage of the forest land is enrolled in the Forest Stewardship program.  Continued suburban and exurban development, and increased fragmentation of large contiguous forest tracts and land ownerships will result in fewer parcels of a size that is efficient for forestry management.  This trend will make it more difficult for the USDA Forest Service to achieve its goals of promoting active forest management on private lands and responsible utilization of timber resources in the New York–New Jersey Highlands region.


 

 

 

 

Figure 2-2. Map of forest lands and location of Forest Stewardship properties.


Table 2-1. FIA data for New York and New Jersey Highlands counties:  dominant forest types.

 

 

Totals

 

thousands of acres

County

White/Red Pine/ Spruce/Fir

Oak/Pine

Oak/Hickory

Elm/Ash/ Red Maple

Northern Hardwoods

Totals

Dutchess

9.9

25.7

109.2

30.9

79.4

264.8

Orange

25.5

4.9

141.2

23.2

53.3

253.4

Putnam

 

 

49.4

8.3

23.9

90.6

Rockland/ Westchester

 

 

56.0

4.6

44.7

105.3

Hunterdon

 

 

56.4

17.2

24.5

120.8

Morris

 

 

68.9

6.1

46.5

121.5

Sussex

 

5.8

109.4

29.0

44.8

193.5

Warren

 

4.1

50.4

13.3

29.1

97.0

Passaic/ Bergen

 

 

74.6

4.5

12.7

91.9

Somerset (Middlesex/Mercer)

 

 

78.4

32.8

20.4

155.6

 

 

 

 

 

 

 

NY Total

35.4

30.6

355.8

67

201.3

714.1

Percent of NY

5.0 percent

4.3 percent

49.8 percent

9.4 percent

28.2 percent

 

NJ Total

0.0

9.9

438.1

102.9

178.0

780.3

Percent of NJ

0.0 percent

1.3 percent

56.1 percent

13.2 percent

22.8 percent

 

Totals

35.4

40.5

793.9

169.9

379.3

1494.4

Percent of whole

2.4 percent

2.7 percent

53.1 percent

11.4 percent

25.4 percent

 

 

 


Table 2-2. FIA data for New York and New Jersey Highlands counties: timberland, total forested and net volume total stock.

 

 

Timberland

Total Forested

Net Volume Total Stock

 

 

 

 

 

 

 

 

 

 

 

Thousands of acres

Thousands of acres

Millions of cubic feet

County

1980 (NY) 1987 (NJ)

1993 (NY) 1999 (NJ)

Percent Change

1980 (NY) 1987 (NJ)

1993 (NY) 1999 (NJ)

Percent Change

1980 (NY) 1987 (NJ)

1993 (NY) 1999 (NJ)

Percent Change

Dutchess

298.6

264.8

-11.3%

301.9

276.9

-8.3%

302.4

407.3

34.7%

Orange

259.0

253.4

-2.2%

290.5

286.3

-1.4%

291.7

317.0

8.7%

Putnam

89.9

90.6

0.8%

99.4

103.0

3.6%

120.7

139.3

15.4%

Rockland/ Westchester

125.7

105.3

-16.2%

164.6

162.1

-1.5%

107.9

164.0

52.0%

Hunterdon

96.7

120.8

24.9%

99.6

120.8

21.3%

148.8

212.8

43.0%

Morris

122.5

121.5

-0.8%

141.2

145.8

3.3%

232.2

278.8

20.1%

Sussex

181.8

193.5

6.4%

205.9

226.1

9.8%

237.6

356.5

50.0%

Warren

95.9

97.0

1.1%

108.9

109.2

0.3%

171.8

192.1

11.8%

Passaic/ Bergen

103.6

91.9

-11.3%

111.2

119.4

7.4%

190.5

189.7

-0.4%

Somerset (Middlesex/Mercer)

134.0

155.6

16.1%

141.6

168.8

19.2%

233.0

276.9

18.8%

 

 

 

 

 

 

 

 

 

 

Totals

 

 

 

 

 

 

 

 

 

NY by year

773.2

714.1

-7.6%

856.4

828.3

-3.3%

822.7

1027.6

24.9%

NJ by year

734.5

780.3

6.2%

808.4

890.1

10.1%

1213.9

1506.8

24.1%

 


 

Table 2-3. FIA data for New York and New Jersey Highlands counties:  net growth and annual removals of growing stock and sawtimber.

 

 

Net Growth All Groups

Annual Removals

 

 

 

 

 

 

Growing Stock

Sawtimber

Growing Stock

Sawtimber

 

Thousands of cubic ft.

Thousands of board ft.

Thousands of cubic ft.

Thousands of board ft.

County

1993 (NY) 1999 (NJ)

1993 (NY) 1999 (NJ)

1993 (NY) 1999 (NJ)

1993 (NY) 1999 (NJ)

Dutchess

8,578

37,131

3,922

10,562

Orange

7,486

25,371

4,293

14,472

Putnam

2,459

12,046

1,252

3,739

Rockland/ Westchester

3,148

12,623

2,721

10,356

Hunterdon

6,501

20,101

  785

  3,256

Morris

8,533

23,343

10,187

32,334

Sussex

6,485

27,368

1,300

0.0

Warren

2,190

  8,046

2,165

7,677

Passaic/ Bergen

7,351

23,209

NA

NA

Somerset (Middlesex/Mercer)

6,986

20,933

2,390

0

 

 

 

 

 

Totals

 

 

 

 

NY by year

21,671

  87,171

12,188

39,129

NJ by year

38,046

123,000

16,827

43,267

 


Forest Health

 

Introduction

Mixed oak hardwood forests are the dominant forest variety in the New York–New Jersey Highlands.  Three oak species: black, white and red, are the most frequently occurring species.  Other species including sugar maple, red maple, hickories, tulip tree, American beech, white ash, elm and birch are interspersed throughout the forests.  The Eastern hemlock is intermixed with other species in cooler, moister areas.  Forest represents the largest land cover class in the Highlands and occupies approximately 825,000 acres of land.

 

Objectives

The objective of this component of the study was to document the status of the forest health in the Highlands.  The predominant vegetation cover of the Highlands is forest, and threats to forest health potentially threaten the character and integrity of the natural setting of the Highlands.  Threats to forest health were identified and discussed.

 

Methods

Environmental factors and biological agents that threaten the health of deciduous hardwood forests in the Highlands and northeast were identified.  Concerns and management efforts at the Federal, State and local levels were documented with information provided by New York State Department of Environmental Conservation, Division of Lands and Forest; and the New Jersey Department of Environmental Protection, Division of Parks and Forestry.

 

Results

Eastern forests, including the Highlands, experience a number of stresses that potentially impact ecological and ecosystem processes in forest systems.  In many instances, a single stressor does not actually kill trees or seriously impact a forest but the single stressor can weaken trees increasing susceptibility to other stressors.  Multiple stressors reduce vigor, increase the potential for tree mortality and can lead to changes in forest community structure.  A large-scale stressor such as acid rain affects forests throughout the northeast.  Acid rain alters nutrient availability by binding essential nutrients making them unavailable for forest vegetation.  Even if acid rain deposition is reduced, there is concern that the residual effects on ecosystem processes may be long-lasting (Lawrence 2002).

 

Forest pest species also affect forest health of the Highlands.  Perhaps the most widely known and documented is the gypsy moth (Lymantria dispar).  This species was introduced into the United States from Europe over 100 years ago when a French scientist imported the moth in an attempt to increase silk production by crossing the heartier gypsy moth with the silk worm.  Today the gypsy moth is widely spread throughout the northeastern portion of the country and intensive management efforts are underway being implemented for both public and private lands.

 

The gypsy moth feeds on a wide range of tree species but preferentially targets oak species.  The gypsy moth can completely defoliate trees and large tracts of forest in a relatively short period of time.  The moth does not kill the tree and in many instances the tree will re-leaf after being defoliated.  However, producing new leaves consumes resources that can weaken the trees defenses to other stressors.

 

Gypsy moth populations tend to be cyclical with outbreak years followed by years of decline.  Concerted effort in management and education has helped to reduce outbreaks in the Highlands over the past 10 years.  The last outbreak of significance occurring in the early 1990s when over 400,000 acres of deciduous forest in New Jersey alone were defoliated.  A natural biological pesticide that targets the early stages in gypsy moth development has helped keep moth population numbers in check.  However, a combination of factors including several consecutive years of draught resulted in increased gypsy moth damage in 2001.  Over 100,000 acres of forest in the New Jersey Highlands were defoliated in 2001 (Figure 2-3) compared to less than 1,400 acres in 1999.  The dramatic increase in damage is a combination of the natural cyclical nature of the moth population combined with environmental conditions that facilitated the spread of the moth.  Efforts are underway to ramp up management efforts to prevent further spread.

 

A pest species that threatens the character and health of the Highlands forests and many forests throughout the east is the hemlock wooly adelgid (Adelges tsugae, HWA).  This aphid-like insect was introduced from Japan and specifically targets hemlocks.  It was first noted in the mid-Atlantic States in the late 1950’s but its current distribution extends from the southeastern United States up into New England.  Every county in the Highlands region has reported the presence of HWA on hemlocks.  As of 1998, approximately 30 percent of the approximately 20,000 acres of hemlock stands in the New Jersey show evidence of HWA infestation with approximately 5,000 acres showing severe to complete defoliation (Royle, 2002).

 

HWA feeds at the base of the hemlock needles sucking on sap which leads to the death of needles and twigs.  The loss of needles and twigs impairs tree health and slows growth.  Hemlocks can generally tolerate low infestation levels but heavy infestations limit resources available for growth.  As the new growth declines so does HWA infestation levels.  The lower infestation levels allow the tree to support new growth but the new growth leads to higher HWA infestations and a cyclical pattern is established.  The cycle of decline and recovery maintains a downward trend in hemlock vigor ultimately leading to tree mortality and loss of hemlocks from the forest.  In some instances, the infestation may be severe enough and the tree stressed enough that mortality can occur in as short a period of three years.  Generally, the more marginal hemlock habitats are where tree mortality occurs the fastest.  Forests that have heavy infestations for long periods of time experience the highest mortality rates (Mayer et al., 2001).  In some instances, HWA weakens the hemlocks sufficiently that other pests such as the hemlock borer become numerous and further weaken the trees.  Presence of several pests is generally an indication of a hemlock stand that has gone beyond recovery.

 

The most promising effort to control the spread and damage done by HWA is through the use of a biological agent.  A predatory beetle, Psuedoscymnus tsugae, found in the native habitat of the adelgid in Japan specifically targets the HWA.  The beetle has been imported to the US and released in test areas that are infested with HWA.  Careful monitoring and repeated releases of the biological control agent has led to limited success in the four years the program has been in operation (Scudder et al., 2001).  Continued efforts are underway to develop better methods to monitor success of the beetle releases and the impacts they are having on HWA.  The pressing concern is that there not be sufficient time to get the beetles at densities high enough to have an impact on HWA.  For sites that experience a rapid decline (three to four years), the outlook is not good.  The hope is to target key areas for hemlock protection primarily on public lands and focus resources and efforts for biological control of HWA in these areas.  Studies to date for areas in the Highlands and the broader northeastern region indicate that the insect has already infested many of the hemlock stands and the biological agent appears to have the most promise for reducing the devastating impact of HWA which could lead to the eventual removal of hemlocks from the Highlands forests.

 

Beech bark disease is another introduced disease that has been in the New York and New Jersey area for many years.  This disease can cause significant mortality and damage to the American beech and particularly targets older, larger beech trees.  The disease is actually a complex of an exotic scale insect that punctures the bark, causing an entry wound for infection by the fungal pathogen Nectria sp.  The appearance of fungal cankers gives the bark a roughened, pockmarked appearance, and eventually girdle the tree.  Beech bark disease was first recorded in the Canadian Maritime Provinces in the early 1900’s and has now spread to Michigan and as far south as North Carolina.  The mature forest trees are most affected, as well as the beech sprouts formed after the tree dies.  At the scale of entire forests, there is no known control for beech bark disease.  It does appear to have a cyclical pattern suggesting that environmental factors might influence the scale insect (Houston and O’Brien, 1998).  There is a ladybird beetle that parasitizes the scale insect and a fungus that parasitizes the Nectria sp., but their effectiveness as biological control agents have not been critically evaluated.

Dogwood anthracnose has essentially eliminated flowering dogwood in many areas of the eastern United States, both in the natural forests and ornamental plantings (Mielke and Daughtrey, 1989; Daughtrey and Hibben, 1983).  Southeastern New York and northern New Jersey are included in the infected area.  The origin of the disease is unknown; it may be an introduced pathogen or it may be a fungus that is native to North America.  Infection occurs on the leaves or through the shoots, causing leaf blight symptoms and eventually leading to twig dieback.  As a result of the twig mortality, prolific sprouting can occur on the stem and main branches.  Multiple cankers can kill the tree after several years of infection.

 

Whitetail deer (Odocoileus virginanus) also pose a serious threat to forest health and regeneration as well as the future vegetation composition of the Highlands forests (Anderson and Loucks, 1979).  Overpopulation and lack of adequate forage have resulted in low regeneration for native trees and herbaceous plants throughout the region.  In many instances, preferential browsing on native species has given invasive species the competitive advantage to reproduce and spread throughout the area unabated (Russell, Zippin and Fowler, 2001; Augustine and Frelich, 1998).


 
 
 
Figure 2-3. Map of 2001 gypsy moth defoliation in the New York–New Jersey Highlands region.  Data sources:  NJ Dept. of Agriculture–Division of Plant Industry; NY Department of Environmental Conservation–Division of Lands and Forests.
 
Map prepared by:  USDA Forest Service–Information Management and Analysis, Durham, NH.
Map edited by:  Center for Remote Sensing and Spatial Analysis, November, 2002.
Discussion

The magnitude of forest cover in the Highlands requires that forest health be an important consideration in planning and management related issues in the region.  Recognition of the importance of forests and the necessity to manage them requires a collective effort at virtually every level of government.  Owners of private forest lands and environmental groups are also important players in effective forest management decisions at the local to the regional level.

 

The fate of the eastern hemlock remains uncertain.  The loss of this species will change the community composition and character of the Highlands forests and would mark the loss of a keystone species.  Keystone species are those species that have a disproportionate impact on a community relative to their relative abundance (Power, 1996).  The eastern hemlock is a critical member of the forest community, providing essential cover and protection for many wildlife species.  Many bird species utilize the hemlock for nesting and some species, such as the Northern Goshawk (Accipiter gentiles) and Magnolia warbler (Dendroica magnolia) nest predominantly in hemlocks.  The hemlock will be replaced with early successional tree species such as red maple and black birch in the near term and eventually other deciduous hardwood trees including oaks.

 

The forests of the Highlands experience many different stressors and the individual impact from a forest stressor is partially dependent on additional contributing factors.  One of the more recent significant factors is drought related, especially since the early 1990’s.  Drought stressed trees are more vulnerable to other stressors.  For example, the impact and severity of gypsy moth damage can be exacerbated when a gypsy moth outbreak occurs during a drought year and which can result in tree mortality when under non-drought conditions the tree can withstand the moth related damage.  Since the forests of the Highlands are more than 52 percent oak, any increase in gypsy moth populations in combination with drought, other insects and root disease, could have an increased impact on the health of the forest.  Drought can also increase the impact on American beech from beech bark disease, causing a higher incidence of thin crowns and yellowing foliage.

 

Whitetail deer overpopulation is a widespread problem throughout the United States and presents one of the greatest challenges that face wildlife managers (Warren, 1997).  Controlling deer numbers is increasingly more difficult to manage.  The combination of reduced hunter access to deer, local ordinances that prohibit hunting, declining numbers of hunters and housing patterns are all contributing to a higher deer population than is sustainable.  There has been over a 51 percent drop in the number of hunting licenses sold in New Jersey in the last 25 years.  It will require aggressive deer management to reduce the impact and long-term implications of deer damage on the Highlands forest ecosystem.

 

Continued vigilance is necessary to retard the impacts of pests such as the gypsy moth.  Our knowledge base in how to control gypsy moth outbreaks has come a long way since almost one million acres were defoliated in New Jersey and New York during the early 1990’s.  However, increased coordination and education of the public and private landowner are essential in effectively controlling massive outbreaks in the future.


 

Individual stressors rarely work singly or independently and forests experience a variety of stressors simultaneously.  These stressors may be derived from anthropogenic sources, from biological agents or from the natural variability inherent in the environment.  The greatest damage and threat to the forest ecosystem occurs when stressors coincide.  Coincidence of stressors can be additive or multiplicative but rarely do they cancel each other out.  Considering the multiple stressors that the Highland forests experience, active management to maintain forest health will require a concerted and collective effort at all levels of government as well as by the private landowner.  The incidence of forest stressors is monitored and updated on an annual basis through the Cooperative Forest Health Program and the Forest Health Monitoring Program in each State (New York Department of Environmental Conservation, Division of Lands and Forest and New Jersey Department of Environmental Protection, Division of Parks and Forestry).


Forest Land Ownership

 

The forest land of the Highlands region of northern New Jersey and southeastern New York is owned primarily by individuals as part of their residences, so that they can enjoy the surrounding green space and wildlife.  These and the other ownerships in the Highlands region will determine how the land is to be used and what the rest of society may expect from these lands.  Whether the land is to remain in forest to replenish and purify groundwater or be subdivided and developed into residential lots with a proliferation of impervious surfaces is ultimately the decision of the individual owners in the region.  But these land holdings do not exist in a vacuum.  Market, social, and political forces are largely determined by the majority of the population that do not own land.  In the following section, we provide an overview of the characteristics of the forest land ownerships of the Highlands region, discuss some of the factors that influence these individuals and organizations, and discuss the potential for forest land ownerships in the future.

 

A Snapshot of Forest Land Ownerships in the Greater Highlands Region

 

In the greater Highlands region[1], 84 percent of the forest land is owned by private individuals and organizations;  the remainder of the land is owned by public agencies.  Most of the public lands are owned by State agencies, but a significant area is also owned by various local and, to a lesser extent, Federal agencies.  The authority and regulations used to purchase and manage these lands makes the fate of these lands more predictable, although not immutable, than that of the lands owned by private individuals and organizations.  These public lands are predominately owned to provide the general public with clean drinking water and recreational opportunities.

 

There were between 50,000 and 75,000 private forest land ownerships in the greater Highlands region in 1991[2].  The average private forest land ownership controlled approximately 20 acres of forest land.  Well over half of the forest land ownerships owned less than 10 acres and over 90 percent owned fewer than 50 acres (Figure 2-4).  But nearly 60 percent of the forest land in the area was controlled by the 8 percent of the forest land ownerships that each owned 50 or more acres.  In 1991, the average forest land ownership had owned forest land for approximately 30 years, but over 30 percent had owned forest land for fewer than 10 years.  The newer forest land ownerships tended to own less forest land than the forest land ownership that had owned forest land for longer.  The vast majority of the private forest land ownerships, over 80 percent, were individual and joint ownerships with the next most common ownership types being partnerships and corporations that collectively controlled one-third of the forest land.  The average forest land owner was 50 years old and nearly 40 percent of the forest land owners were retired.

 

The predominant reasons for these people to own forest lands was that the forests were a part of their residences and for the enjoyment that they gained from owning “green space” (Figure 2-5).  The importance of forest land as part of a residence makes sense because nearly 90 percent of the owners lived on or near their forest land.  But the average amount of land owned was greater for people that did not live on their land (44 versus 17 acres).  Although enjoyment of green space is the major expected benefit for owning forest land, nearly a quarter of the owners expressed increase in land value as a primary expected benefit (Figure 2-6).

 

Many of the goods and services that will be provided by these forest lands cannot be easily quantified.  Two of the major services provided, water purification/recharge and aesthetics are very difficult to quantify and assess their values.  Some of the more traditional services and products supplied can be more easily assessed.  For example, over two-thirds of the ownerships that own nearly 80 percent of the forest land have at least part of their land posted to restrict access and/or recreational uses.  Nearly a third of the ownerships that own about half of the forest land have harvested some type of forest products from their land, predominately fire wood for their own use, and an even larger percentage plan to harvest in the future.

 

Trends in Forest Land Ownership

 

Although the information presented above is somewhat dated, the general trends will still hold true today because of the relatively slow pace of change in ownership characteristics and land use conversions.  Changes will invariably occur, but most of these changes will be continuations of the trends that have already been observed.  The land will continue to be parcelized–a reduction in the average size of the land held per ownership–and more and more land will be held because it is a part of a residence and for the aesthetic enjoyment that it provides to the owner.  These trends will occur as long as the population pressures continue to increase, the urban fringe continues to expand, and the goal of a “house in the country” continues.  These trends will have direct impacts on what the general public can expect from these lands–a gradual reduction in the lands’ ability to supply clean water and green space.

 

Additional Information

Forest land ownerships in the region are currently being surveyed again and information on these on-going surveys can be found on the National Woodland Owner Survey website (http://www.fs.fed.us/woodlandowners).  Additional information on forest land ownerships can be obtained from this website or from the following publications:

Best, C., Wayburn, L.A. 2001. America's private forests: status and stewardship. Island Press, Washington, DC.

Birch, T.W., Butler, B.J., 2001. Private Forest Land Ownerships of New York: 1980 and 1994. U.S. Department of Agriculture, Forest Service, Northeastern Research Station Resource Bulletin NE-153, 75 p.

Birch, T.W., 1996. Private forest land owners of the Northern United States, 1994. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station Resource Bulletin NE-136, 293 p.

Kingsley, N.P., 1975. The forest land owners of New Jersey. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station RB-NE 39, 24 p.

National Research Council. 1998. Forested landscapes in perspective: prospects and opportunities for sustainable management of America's nonfederal forests. National Academy Press, Washington, DC.


 

 

 

 


 


Figure 2-4.  Distribution of private forest land ownerships and forest land by size of landholdings in the greater Highlands region of New Jersey and New York, 1991.

 

 


2-5a.

 

2-5b.

 

 

Figure 2-5.  Ownership objectives of private forest land ownerships in the greater Highlands region of New Jersey and New York by a) number of ownerships and b) area, 1991.

 
 



 

Figure 2-6.  Expected benefits of private forest land ownerships in the greater Highlands region of New Jersey and New York by a) number of ownerships and b) area, 1991.

 
 

 

 



Biodiversity

 

Introduction

Biological diversity, or biodiversity, is the variety as well as variation of all living organisms in the context of their habitats and ecological systems.  Components of biodiversity include individual species and the genetic variation within and between species as well as the ecological diversity within the biological systems.  Biodiversity also encompasses the variety of different systems and the linkages across the systems at the regional scale.  The Highlands is rich in the variety of biological systems that support high local biodiversity including freshwater wetlands, swamps and bogs, glades, ravines and ridges, and large contiguous forest tracts and grasslands.  It is the rich diversity of different community types as well as variability within the community types that allows the Highlands to support high levels of biodiversity throughout the region.  The value of this rich biodiversity resource base is amplified as well as vulnerable due to its proximity to urban growth centers and suburbanization trends.

 

Objectives

The primary objective was to examine the current status of biodiversity of the Highlands and examine geographic patterns of how biodiversity is distributed in the Highlands.  A secondary objective was to map the spatial distribution of areas important to maintaining threatened and endangered species and natural communities that support and maintain the high biodiversity of the Highlands.

 

Biodiversity is presented as three different sections reflecting the way in which biodiversity was measured.  The faunal or animal biodiversity is presented first, followed by floral or plant biodiversity.  Plants and animals collectively are important components in what is defined as natural communities and there are a number of important and significant natural communities in the Highlands.  The biodiversity and spatial distribution of important natural communities are presented as the third portion of this section on biodiversity.

 

 

Animal diversity

 

Methods

The New Jersey Department of Fish, Game and Wildlife–Endangered and Non-game Species Program (FGW-ENSP) Landscape Project (2001) was used as a model for evaluating critical wildlife resources in the Highlands.  The Landscape Project identifies critical species habitat based on land cover classification and rare species locations.  Land cover categories including forest, grassland, forested wetland and emergent wetland are extracted from satellite derived land use and land cover data.  Viable habitat within each land cover class is identified by use of criteria appropriate to the class (i.e. forest cover unbroken by roads).  Endangered and threatened species location data are used to model species-specific habitat (See the Landscape Project web site: www.njfishandwildlife.com/ensp/landscape/).  The models are then intersected with the appropriate, viable land cover types, and each patch is ranked according to the conservation status of the associated species (Table 2-4).

 


Table 2-4. Rank of animal species based on Federal and State protection status.

 

Ranking

Status

5

Federal threatened and endangered species

4

State endangered species

3

State threatened species

2

State species of concern

1

No ranked species

 

The State of New Jersey FGW-ENSP provided the most current Landscape Project data (2001) for the New Jersey portion of the Highlands as 30-meter resolution grids.  Habitat types include forest, forested wetland, emergent wetlands and grasslands.  No further processing was required.

 

New York State does not have an equivalent program as the Landscape Project, and so the New York portion of the Highlands was ranked for habitat value for New York relevant species by implementing the NJ FGW-ENSP methodology.  Forest, forested wetland, emergent wetland, and grassland land cover classes in the New York study area were extracted from 2000 land use and land cover data.  Viable habitat within each land cover class was identified by use of criteria appropriate to the class as per the Landscape Project.

 

The New York Natural Heritage Program (2001) provided animal observations as point location and polygon data.  Species were selected for inclusion according to Federal and State protection status, locational precision, and temporal resolution.  No records that predate 1970 were included.  The species-specific habitat models were either adapted from New Jersey FGW-ENSP or developed in close collaboration with the New York Natural Heritage Program (Table 2-5).  Completed habitat models were overlain on appropriate land cover types (forest, forest wetland, emergent wetland and grassland) and the habitat was ranked according to the species protection status.  Both the New York and New Jersey Landscape Projects were merged to form to a single, 30-meter resolution raster coverage for the Highlands.  The higher rank was assigned to cells in places of overlap.

 

Results of animal diversity

The importance and value of the Highlands region may be demonstrated by the number and type of wildlife species that are found there.  There are more than 100 species of nesting birds, large mammals including bobcat (Lynx rufus), black bear (Ursus americanus) and river otter (Lutra canadensis), and wild trout fisheries in the Highlands.  The Highlands is also part of a major east coast migratory flyway for many bird species.  There are a number of species found in the Highlands that have special status due to low or declining population numbers.  There are a number of endangered species found in the Highlands.  Endangered species are in immediate peril of survival due to low population numbers as a result of one or several reasons including habitat loss, over-exploitation, predation, competition, disease, disturbance or contamination.  Federally endangered species represent those species that are in peril at the national level and State listed endangered species are those that are not nationally at risk but are locally rare.  Species listed as threatened are those that are at risk of becoming endangered if trends continue and management efforts are not successful in increasing population numbers.  Species of concern are of State level interest and represent those species where population trends suggest that if left unabated, they will become threatened and potentially endangered.  Endangered or threatened species within the Highlands region include:  the timber rattlesnake (Crotalus horridus), bog turtle (Clemmys muhlenbergii), red‑shouldered hawk (Buteo lineatus), barred owl (Strix varia), great blue heron (breeding) (Ardea herodias) and eastern wood rat (Neotoma magister).

 

Almost 50 species of vertebrate animals are listed on State inventories for species that are endangered, threatened, or are of concern (Table 2-6).  Roughly 62 percent, or 872,639 acres, of the Highlands is considered important wildlife habitat with over 35 percent of the Highlands supporting Federal or State endangered species (Table 2-7, Figure 2-7).

Large, unbroken tracts of forest (greater than 500 acres in size), which comprise nearly 25 percent (or nearly 350,000 acres) of the Highlands support habitat requirements of far-ranging mammals such as bear and bobcat and provide interior forest habitat critical to the survival of many nesting neotropical songbirds (Figure 2-8).  There are only 11 tracts of forest that are greater than 5,000 acres in size and these largest tracts comprise approximately 60 percent of the New York–New Jersey Highlands, or 416,000 (29 percent) acres of core forest interior habitat.  Just as important as the sheer amount of habitat in the Highlands is its location and contiguity.  Protected open space, located in key locations, provide feeding and migration corridors, critical to the survival of large animals such as the black bear, and furbearers such as bobcat, and river otter.

 

In addition to the critical habitat, the New York–New Jersey Highlands provides to species in peril, the region also represents a vital link in a major bird migratory flyway connecting wintering habitat in Central and South American and breeding grounds in northern latitudes.  One-quarter of all neotropical bird species found in the United States are found in the Highlands and half of the total number of species that breed in the Highlands are neotropical migrants.  Many of these species are forest-interior breeding species, and the 416,242 acres of interior forests in the Highlands provide critical habitat for species including red-eyed vireo (Vireo olivaceus), American redstart (Setophaga ruticilla) and eastern pee-wee (Contopus virens).  Some two-thirds of the migrant birds that use the eastern migratory flyways are believed to be in serious decline.  Several species, including the wood thrush (Hylocichla mustelina), Kentucky warbler (Oporornis formosus), black-throated blue warbler (Dendroica caerulescens) and cerulean warblers (Dendroica cerulea) are on the Audubon Watch List for species in rapid decline (www.audobon.org/bird/watch).  One reason for their decline is the loss of habitat through forest fragmentation and development pressure (Robinson et al., 1995, Villard et al. 1995, DeCalesta 1994).

 


Table 2-5. Species with special status in New York State for which specific models have been created as part of the Landscape Project.

 

Species

New York Species Status

Habitat

Model Specifics

Northern cricket frog
(Acris crepitans)

SE

EW,FW,F

300 m buffer around siting

Upland sandpiper
(Bartramia longicauda)

ST

G

ENSP Colonial waterbird model

Bog turtle
(Clemmys muhlenbergii)

FE

EW

ENSP Bog turtle model

Timber rattlesnake
(Crotalus horridus)

ST

FW, F

1.5 mile buffer around siting

Blanding’s turtle
(Emudoidea blandingii)

ST

EW, FW, F

300 m buffer around siting

Peregrine falcon

(Falco peregrinus)

SE

F, EW

1 Km buffer around nest site

Bald eagle
(Haliaeetus leucocephalus)

FE

F, FW, EW, G

ENSP Bald Eagle Model

Least bittern

(Ixobrychus exilis)

ST

EW

ENSP Great Blue Heron model

Eastern small-footed myotis (Myotis leibii)

S-SC

F, FW

2 Km buffer around siting

Kentucky warbler
(Oporornis formosis)

SP

FW, F

500 m buffer around siting

Fence lizard
(Sceloporus undulates)

ST

F, G

500 m buffer around siting

Gray petaltail
(Tachopteryx thoreyi)

S-SC

EW, F

2 Km buffer around siting

 

Species Status:  FE–Federal Endangered, SE–State Endangered, ST–State Endangered, S-SC–State species of concern, SP–State Protected.

 

Habitat:  F–Forest, FW–forested wetland, EW–emergent wetland, G–grassland


Table 2-6. Number of listed animal and plant species by State for the Highlands region.

 

Threatened and Endangered Species of the Highlands

 

Animal

Plant

Status

New Jersey

New York

New Jersey

New York

Federal endangered

3

0

0

0

Federal threatened

2

2

2

0

State endangered

14

2

104

41

State threatened

12

5

0

47

Unprotected species of concern

0

9

0

4

 

 

Table 2-7. Acreage in the Highlands region that provides animal habitat for listed species in peril.

 

Animal Habitat

Status:

Acreage

Percent of Study Area

Federal threatened and endangered species

196,436.6

13.8 percent

State endangered

310,093.9

21.9 percent

State threatened

201,305.9

14.2 percent

Unprotected species of concern

14,973.6

1.1 percent

Suitable habitat

149,829.2

10.6 percent

Total study region area

1,418,825.0

---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2-7. Map of threatened and endangered animal species habitat.

 

 

 

Figure 2-8. Map of contiguous forest tracts classed by size distribution.


Plant diversity

 

Methods

The Natural Heritage Programs of New Jersey and New York provided plant data as post-processed and direct products of the Natural Heritage Network Biological Conservation Database.  Information about Federal and State-listed endangered, threatened and plant species of concern was used to generate a data layer that depicts the geographic distribution of protected and rare plant species.

 

The data provided by the New Jersey Natural Heritage Program consisted of a polygon coverage of 7.5’ topographic quadrangles that cover the New Jersey portion of the study area.  Each of the quadrangles is divided into 100 approximately equal-area sections (10 rows, 10 columns).  The geographic data link to an external database file that contains information regarding plant species found in associated quadrangle hundredths.

 

The data provided by the New York Natural Heritage Program consisted of a polygon coverage with associated attribute information.  The polygons depicted locations of tracked plant species observations.  The resolution of New York plant data required coarsening for consistency across the Highlands region.  The geography and attribute data were converted to a network of quadrangle hundredths similar to that of the New Jersey data.

 

All plant observations with precise location information were retained in the analysis.  Historic records were also included since lack of recent observations does not necessarily preclude species presence.  Records that lack location information or where species are considered extirpated were excluded from the analysis.  The data were provided by both states during August and September of 2001 and were representative of the most comprehensive information available as of those dates.

 

The grid square coverages of both New York and New Jersey were ranked by presence or absence of tracked plant species.  Integer values were assigned according to the Federal or State status of the observed species.  The highest value was assigned in instances where several ranked species occur in the same location.  The ranked plant polygon coverages were then converted to raster (30 meters/pixel) and merged for use in the biodiversity model.

 

Results of plant diversity

The Highlands region harbors over two hundred species of plants that have protection status or are species of concern.  Approximately 111,952 acres (close to 8 percent) of the Highlands have reported instances of plant species that are in peril with State listed endangered species representing by far the greatest percentage of over 5 percent of the New York–New Jersey Highlands (Table 2-8, Figure 2-9).


 

Table 2-8. Acreage in the Highlands region that represents habitat for listed plant species in peril.

 

Plant Presence

Status:

Acreage

Percent of Study Area

Federal threatened and endangered species

2878.7

0.20

State endangered

72,345.0

5.10

State threatened

29,902.2

2.11

Unprotected species of concern

6,827.0

0.48

 

 

 


 

 

 

 

Figure 2-9. Map of threatened and endangered plant species habitat.


Community diversity and exemplary communities

 

Methods

Information pertaining to important, unique or rare natural communities in the Highlands region was gathered from the New Jersey and New York Heritage Programs, The Nature Conservancy and the US Fish and Wildlife Service.  The data included natural heritage priority sites from the New Jersey Office of Natural Lands Management, natural communities from the New York Natural Heritage Program, matrix sites from The Nature Conservancy (TNC 2001), and areas in the Highlands identified in the US Fish and Wildlife Service Significant Habitats and Habitat Complexes of the New York Bight Watershed (1997).  Priority sites in New Jersey are those considered to be “critically important natural areas” (Office of Natural Lands Management, 1999) of varying interest for biodiversity.  Natural communities as derived from the New York Natural Heritage data set are those that are comparatively large, intact vegetation community types that are in good condition, relatively undisturbed and generally lack invasive species (exemplary communities) as well as those of interest for biodiversity.  Areas of interest for biodiversity in the US Fish and Wildlife Service New York Bight watershed study (1997) were also included in the community data.  These areas were coincident with New Jersey priority sites in many instances.  Finally, TNC matrix sites in the Highlands are representative of large tracts of land that have contiguous cover; tend to be influenced by large-scale processes; and provide habitat for wide-ranging or large-area dependent animals.  They include both areas of general and specific interest for biodiversity.

 

All data was provided in the form of polygon GIS coverages.  All databases were ranked according to their biodiversity rankings as defined by the Natural Heritage Programs of each State (Table 2-9).  Community types are ranked by their relative endangerment to determine their relative conservation priority (Breden et al., 2001).  Biodiversity ranks were not resident in the New York natural community data.  Therefore, biodiversity ranks were assigned to the data according to the global rank of each community, as per the New Jersey Natural Heritage Priority Sites metadata (Office of Natural Lands Management, 1999).

 

The individual ranked coverages for community data were converted to 30-meter resolution raster format, and merged to create a single Highlands coverage for community data.  In cases where there was an overlap in coverages or rankings, preference was given to the highest-ranking cells.

 

Table 2-9. Biodiversity ranks for vegetation community data.

 

GIS Ranking

Biodiversity Ranking

Description

5

B1

Outstanding significance for biodiversity

4

B2

Very high significance for biodiversity

3

B3

High significance for biodiversity

2

B4

Significant for biodiversity

1

B5

Of general biodiversity interest

 


Results of Community Diversity

There are a number of unique and exemplary natural communities in the Highlands region (Table 2-10, Figure 2-10).  Approximately 20 percent (283,150 acres) of the Highlands received State and Federal status recognition being listed as priority sites (rank B1-B5) for preservation or role-model examples of relatively intact vegetation community types that are in good condition, relatively undisturbed and generally lack invasive species.  These communities are important biodiversity components of the Highlands since in many cases they are habitat to many sensitive or rare species found in only a few locations throughout the region.  Special community types include calcareous fens, glacial bogs, rocky summit or outcrop plant communities, talus slope woodlands, swamps including Atlantic white cedar (Chamaecyparis thyoides) and spruce-fir, and prime examples of chestnut oak (Quercus prinus) forests and hemlock-northern hardwood forest.  The Nature Conservancy identified seven tracts of contiguous forest, called matrix sites, comprising more than 200,000 acres that have high biodiversity value and are represented in their regional priority for conservation.  Protection of important natural communities extends beyond species protection and protects valuable biodiversity elements at the community and regional level.

Table 2-10. Acreage of the Highlands region that comprises important ecological communities.

 

Natural Communities Ranked by Biodiversity Ranking

Biodiversity Rank

Acreage

Percent of Study Area

B1

0

0

B2

50,974

3.6

B3

30,250

2.1

B4

63,399

4.5

B5

138,527

9.8

Total (B1-B5)

283,150

20.0

 

Note:  Natural Heritage Program biodiversity rank of B1 is rated as the highest biodiversity value; a biodiversity rank of B5 is lowest.

 

Discussion

A significant percentage of the New York–New Jersey Highlands provides critical resources to a wide variety of species.  Indeed, approximately 62 percent (or 873,996 acres) of the Highlands provides important habitat for many species of plants and animals that have some status of concern at either the State or Federal level.  The wide variety of habitat types and the juxtaposition of habitat types helps to maintain the rich biodiversity of the region.  However, there are serious threats to the region.  Fragmentation and alteration of habitat continue to pose the greatest threat to the biological communities in the Highlands.  Rapid urbanization encroaches on and fragments habitat, destroys individuals as well as populations, and potentially threatens the continued existence of many biological communities.  Degradation of habitat by direct destruction or indirectly through pollution, erosion, introduction of invasive species, or fragmentation all threatens the existence of species, diminishes natural communities, and reduces genetic variability.

 

The presence of invasive species in many systems, including the Highlands, has altered community structure and ecosystem function.  Some of the more common invasive plant species in the Highlands include Norway maple (Acer platanoides), tree-of-heaven (Ailanthus altissima), Japanese barberry (Berberis thumbergii), Japanese honeysuckle (Lonicera japonica), purple loosestrife (Lythrum salicaria), garlic mustard (Alliaria officinalis) and stilt grass (Microstegium vimineum).  In addition, animals that live in the soil have been impacted by the invasion of exotic earth worms (Kalisz 1993) throughout the region while range expansion of cowbirds exacerbate the effects of forest fragmentation on forest interior breeding birds (Moorman et al., 2002).  Little scientific evidence is available as to how these invasive species are altering the biodiversity of the Highlands.  However, the community structure and function will inevitably change in the presence of the host of the invaders (Lodge, 1993, Drake et al., 1989).

 

High whitetail deer populations are changing the forest plant communities.  Deer selectively graze on native seedlings and tend to avoid many invasive species.  Preferential grazing ultimately alters regeneration pathways of the native forests.  Reduced hunting pressure and the encroachment of suburbia exacerbates the problem.  In addition, the presence of pest species such as the wooly adelgid selectively removes one of the potential keystone species of the Highlands forests and threatens the continued integrity of the region’s biodiversity.


 

 

 

Figure 2-10. Map of significant natural communities.

 


Recreation

 

Introduction

The New York–New Jersey Highlands represents a green belt of open space defining the outer fringe of the New York metropolitan region.  This open space provides numerous opportunities for both passive and active outdoor recreation.  The Highlands hills, forests, lakes and streams give the metropolitan region’s 15 million citizens a chance to escape to nature within a short drive from home.

 

Objectives

The objective of this component of the study was to document the importance of the Highlands as a recreational resource of regional importance.  Lands and waters important for various outdoor recreational pursuits were identified and mapped.

 

Methods

Outdoor recreation opportunities within the Highlands that are available and open to the public were identified.  Federal, State, county and local park, and travel and tourism authorities were queried for information on properties and facilities.  Available information on visitation to the region’s various county, State and Federal parks were compiled to document the region’s importance for outdoor recreation.  Major purchases and open space initiatives since the 1992 USDA Forest Service Highlands study were examined.

 

Using available data and information sources, we developed a digital GIS database of important outdoor recreational areas.  The following information was compiled and digitized:  parks, gardens, hiking and biking trails, campgrounds, trout streams, canoeable streams, fishing lakes, boating areas, hunting areas, wildlife viewing areas, swimming areas, ski areas, and golf courses.  Digital mapped information on hiking trails maintained by the New York–New Jersey Trail Conference, as well as canoeable streams in the Highlands study region was provided by the Trail Conference and the Appalachian Mountain Club.  An extensive GIS database of publicly and privately owned conservation or open space land was compiled from a number of sources, including the New York State Department of Environmental Conservation, the New York City Department of Environmental Protection, the New Jersey Department of Environmental Protection’s Green Acres Program, the New Jersey Department of Agriculture, North Jersey Resource Conservation and Development, Orange County Water Authority, Rockland and Westchester County planning departments, Dutchess County Environmental Management Council, the New Jersey Conservation Foundation, the Passaic River Coalition, the Regional Plan Association, Scenic Hudson Inc., the Hudson Highlands Lands Trust, and the Open Space Institute.  In many cases, there were inconsistencies in property boundaries between the various mapped sources; where possible the boundaries were matched and corrected, though some inconsistencies may remain.

 

To examine the scenic qualities of the Highlands landscape, a viewshed analysis was conducted.  Nearly two hundred hiking trail viewpoints, fire towers and scenic overlooks were digitized from New York–New Jersey Trail conference hiking maps, State and county park maps and existing GIS data on fire tower locations.  Using a digital elevation model and GIS analysis software, the landscape areas viewable on a direct line of sight from these viewpoints were delineated.  Using a similar methodology, ridge-top areas viewable from the surrounding landscape were delineated.  The first procedure was designed to simulate the view from someone at a high elevation location looking down and out across the landscape.  The second procedure simulates the view of someone in the valleys looking up at the higher ridges and mountains of the Highlands.  In addition, the area in the Hudson River valley and adjacent New York Highlands that has been designated as a Scenic Area of Statewide Significance by the New York State Department of State was included in our analysis.  The various viewshed analyses were aggregated and rescaled, using an equal area option, to a ranking scheme of 1 to 5 with 5 being the most visible.  It is our contention that these highly visible areas contain the highest scenic values and may be sensitive to aesthetic degradation due to incompatible land use change.

 

Results

Open Space

An extensive GIS data base of publicly and privately owned open space and other conservation lands was compiled from a large number of different sources (Figure 2-11).  There is no single comprehensive up-to-date source of data, whether mapped or tabular, concerning publicly owned open space for either New Jersey or New York.  Up-to-date GIS data on open space lands were generally more available in New Jersey.  Digital GIS or hard copy mapped data on some types of ownership categories such as preserved farmland were not readily available for New York and represent an outstanding data gap.  Mapped information on municipal parkland, non-profit land trust, privately owned conservation lands (e.g. hunting clubs) or privately owned open space (e.g., Scout camps) is not consistently or comprehensively available for either State.

 

Based on the best available data (as of January 2002), we estimate that more than 20 percent of the Highlands is presently in public or privately protected open space.  Of these 311,700 acres, 5 percent is in Federal ownership, 56 percent in State parks, forests, wildlife management areas, 19 percent in watershed management or other conservation easements, and 10 percent in county parkland, 5 percent in local parkland and 5 percent in non-profit land trusts (Table 2-11).  In addition, there are more than 23,500 acres of military lands including the Picatinny Arsenal, West Point and Camp Smith Military Reservations.  Although a percentage of these areas are not physically accessible, these lands provide scenic and wildlife values.  An additional 27,000 acres are in watershed lands managed by various water authorities and are not explicitly considered open space.  As stated above, we may have underestimated the amount of open space in local parks and land trusts.

 

The last decade has seen the addition of new open space.  Of special note was the acquisition of Sterling Forest Park through a Federal, State (both New York and New Jersey) and private sector partnership.  The initial purchase in 1998 of 14,400 acres has been supplemented by additional purchases with more on the horizon.  The park consists of more than 17,700 acres of forest, lakes, streams and wetlands and contains significant historical cultural resources.  Through its Land Acquisition and Stewardship Program (initiated in 1997), the City of New York has embarked on an ambitious campaign to purchase additional watershed lands to protect the water quality in the Croton reservoir system.  More than 4,500 acres have been purchased to date.  Where possible, compatible recreational uses such as hiking, fishing and hunting will be allowed.  The Pequannock Watershed lands (32,800 acres) in New Jersey, owned and managed by the City of Newark, provide important recreation and scenic values to the region.  Since the 1992 Highlands study, the State of New Jersey has purchased conservation easements for more than 15,500 acres of this land, protecting it from future development.

 

Table 2-11. Area of public and privately owned conservation and other publicly owned lands.

 

Ownership

Acres

Federal: parks, wildlife refuges

   15,103

State: parks, forests, wildlife management, multi-use areas

174,628

County: parks, reserves, greenways

   32,427

Local: parks, reserves

   14,751

Preserved farm: conservation easement (New Jersey only)

     9,551

State: conservation easement (New Jersey only)

   29,945

New York City Dept. of Environmental Protection watershed lands

   19,460

Other open spaces

        474

Total protected open space

311,708

 

 

Military

   23,570

Watershed Management Areas: no conservation easement (NJ only)

   26,983

 

 

The Highlands represent a major outdoor recreational resource for the citizens of the New York City metropolitan region.  The attendance at major outdoor recreational venues in the Highlands is over 14 million visitor days per year.  This total is for attendance at State parks and forests, Morris, Orange and Westchester County Parks, and the Morristown National Historic Park, and does not include other county parks or Federal or State wildlife management areas (Figure 2-12).  The total visitation for these parks has shown a steady rise over the past decade (from approximately 8 million to more than 14 million).  This level of visitation is greater than the visitation at such famed national parks as Yellowstone, Yosemite or Grand Canyon (Figure 2-13).

 

Current population projections (to the year 2010) indicate that the demand and need for open space and outdoor recreation opportunities will remain high (NJ DEP Green Acres, 1999a).  It is estimated that an additional 47,000 acres of public parkland are needed to meet the Balanced Land Use Guidelines suggested by the New Jersey model for the six core counties in the New Jersey Highlands alone (NJ DEP Green Acres, 1999a).  (These calculations were based on the assumption of no new development).  New Jersey’s statewide deficit projection for the year 2010 is 270,000 acres.  However, New Jersey looked beyond these figures and set the ambitious goal of preserving an additional one million acres within the next ten years (NJ DEP Green Acres, 1999b).  The Highlands region is identified as a high priority area for meeting these open space demands (NJ DEP Green Acres, 1999a).  The New Jersey Green Acres Program and the New Jersey Conservation Foundation are presently coordinating an open space visioning effort to highlight potential open space hubs and connecting greenway corridors (Mednick, 2002).  The pilot project for this effort has focused on the Highlands and adjacent ridge and valley region.

 

In New York State, the Hudson River valley and adjacent Highlands are a focal point of open space and greenway planning and protection.  The Hudson River Estuary Program was established as part of the National Estuary Program in 1987.  In 1991, the State of New York passed the Hudson River Valley Greenway Act of 1991 to create a regional planning process to promote the protection of the region’s natural and cultural resources.  The Hudson River and Highlands area of New York State was designated as part the Hudson River Valley National Heritage Area in 1996, recognizing the importance of the history and the resources of the Hudson River Valley to the nation.  In 1998, the Hudson River was also designated a National American Heritage River under Executive Order 13061.  This designation directed the various Federal agencies to cooperate with State and local agencies to enhance the historic, cultural, recreational, economic and environmental value of the Hudson River and to improve the health of the adjacent communities.


 

 

 

 

 

Figure 2-11. Map of public and privately owned open space in the New York–New Jersey Highlands.


 

 

Visitor Days by Department/County

 
 

Fiscal Year

 

 

 


Figure 2-12. Visitor attendance at selected State and county parks in the New York–New Jersey Highlands.


 

 

Visitor Days to Highlands vs. National Parks

 

Year

 
 


 

 


Figure 2-13. Comparison of visitor attendance at selected State and county parks in the New York–New Jersey Highlands vs. selected national parks.


Outdoor Recreation and Cultural Resources

 

In order to assess the New York–New Jersey Highlands historical and cultural resources, data was compiled from a number of sources.  Unfortunately, there is no comprehensive source of GIS-ready information on historical sites in the New York–New Jersey Highlands region.  National Register Information System (NRIS) of the National Register of Historic Places lists hundreds of sites within the New York–New Jersey Highlands study area (NPS, 2001).  However, based on closer examination of the locational coordinates stored as attributes in the NRIS, we concluded that the information was not of sufficient accuracy to incorporate in the Highlands GIS.

 

The Highlands contains numerous historical and cultural resources including nationally significant Revolutionary War sites such as the Morristown National Historical Park, West Point and Stony Point Battlefields, remnants of an earlier industrial past such as the Morris Canal and iron forges, along with historic farms, homes and villages.  The historic data included sites designated as National Historic Landmarks, sites listed on the National Historic Registry, as well as the individual State's registry and those provided by historic societies.  While 165 sites were documented and geo-located for inclusion in the Highlands GIS, many more sites remain to be catalogued and mapped (Figure 2-14).

 

The New York–New Jersey Highlands are a favorite hiking destination for New York City metropolitan area residents.  There are approximately 855 miles of recreational trails that cross both public and private land (Figure 2-14).  Some of these trails represent linear recreational features that traverse large sections of the Highlands countryside.  These long distance trails include such notable regional hiking trails as the Appalachian Trail, Highlands Trail, and Long Path.  Many of the region’s long-distance rail-trails and county greenways are multi-use trails supporting bicycling, cross country skiing and horseback riding in addition to walking.  There are approximately 343 miles of long distance trail.  In addition, there are more than 620 miles of local hiking trails.  Many of these local hiking trails are concentrated in the larger sections of State parkland such as Harriman, Bear Mountain, Ringwood/Ramapos, and Clarence Fahnestock State parks.  A volunteer organization, the New York–New Jersey Trail Conference, maintains many of these trails.  Approximately 25 percent of local hiking trails exist on private lands.  These trails are much more susceptible to incompatible neighboring development, closure and/or rerouting.  The unauthorized use of motorized all-terrain vehicles (ATVs) on recreational trails is an area of concern by both land managers and trail users, alike.  The issue of managing ATV use is receiving increasing scrutiny on the part of State and county land use management agencies.

 

One of the biggest draws of the Highlands is their scenic beauty.  The Bear Mountain and the Hudson Highlands have long been nationally renowned for their scenic splendor.  Automobile touring on the Highlands scenic highways and byways is popular activity.  The autumn months during the height of the autumnal leaf color are especially popular and often combined with a trip to farm markets or cider mills.  Ecotourism is increasing with 28 sites officially designated in the Highlands region by the states of New York and New Jersey.  There are more than 170 recreational trail viewpoints and lookout towers available for scenic viewing of the Highlands.  Based on our viewshed analysis, more than 140,000 acres of the Highlands ridges and valleys, including the nationally significant Hudson Valley, can be considered as having exceptional scenic value (Figure 2-15).

 

Fishing is a popular recreational sport in the Highlands.  The extensive network of cold-water trout fisheries throughout the Highlands makes it one of the more popular fishing destinations in the region (Figure 2-16).  There are approximately 1860 miles of streams that have been mapped by New York State Department of Environmental Conservation and New Jersey Department of Environmental Protection as trout streams.  These trout streams have been classed as either trout production or trout maintenance.  Trout production streams have the highest water quality and have suitable habitat characteristics such that they support trout reproduction.  Trout maintenance streams generally do not support trout reproduction but do support a put-and-take trout fishery.  The region is also well known for the warm and cold-water fishing opportunities that the numerous lakes and reservoirs provide.  While some of these waters have limited public access, many of the largest water bodies such as Round Valley, Spruce Run, Greenwood Lake, Lake Hopatcong, and the Hudson River have public boat ramps.  Other lakes, most notably in Harriman State Park, have hand carry boat launch sites open to the public.

 

In addition to fishing, Highlands waterways also provide numerous opportunities for canoeing, pleasure boating and sailing.  The Appalachian Mountain Club has mapped 535 miles of canoeable rivers (Figure 2-16).  The larger lakes and reservoirs as well as a spectacular stretch of the Hudson River are popular for sailing and pleasure boating.

 

Hunting has been a very popular recreational activity in the Highlands.  There are approximately 25,000 acres of public open space accessible for both small game and deer hunting (Figure 2-17).  Additional lands are owned and managed by private individuals and gun clubs with the primary purpose of recreational hunting.  However, in recent years the number of hunting licenses sold has been on the decline and there is concern that, as the primary deer control mechanism, a continued decrease of hunting pressure will result in increased deer overpopulation problems.  Public participation in non-consumptive uses of wildlife such as birdwatching and wildlife viewing is on the rise and both New York and New Jersey have established a network of wildlife viewing sites open to the public.

 

Camping is a popular recreational activity in the Highlands.  Harriman, Clarence Fahnestock, Spruce Run, Round Valley and Stephens State Parks all have public campgrounds open to families or organized groups (Figure 2-17).  There are also over 30 private campgrounds as well as numerous Y, church and Scout camps.

 

Golf is an increasingly popular outdoor recreational activity.  There are more than 40 golf courses in the Highlands.  Golf courses can have negative environmental impacts and must be carefully planned to minimize conflicts with other recreational and open space values.  The Highlands also supports downhill skiing at seven downhill ski areas.  Golf courses and ski areas can have negative environmental impacts and must be carefully planned to minimize conflicts with other recreational and open space values.

 


Discussion

The New York–New Jersey Highlands represent the closest area of extensive open space to the New York City metropolitan area.  It is a heavily used resource and meets a diverse set of needs from semi-wilderness backpacking to Saturday morning soccer games.  The approximately 20 percent of the Highlands already set aside as parks, forests or refuges, represents a sizeable area of permanently protected open space.  Continued population growth in the region suggests that the demand for outdoor recreational experiences will continue to grow.  All levels of government have responded to this demand as evidenced by the many proactive open space policies that have been adopted.  Recent years have shown some significant tracts of preserved open space through either fee simple purchase or conservation easements.

 

Recreation and open space will be impacted by the expected changes in population and land use in the Highlands.  Projected land development, especially when located along major roadways and within the viewshed as well as the watershed, will significantly detract from the outdoor experience and its recreational economic value.  Continued parcelization will make parkland acquisition more costly, access to private land less likely, and reduce the buffer that private open space provides to public parks.  Public access to waterways for fishing, canoeing and boating will be further restricted as lakeshores and riverbanks are developed.  Lands open to hunting will be further reduced as large tracts are converted or fragmented by development.  Competition between different recreational user groups for a limited land base is already an issue and may intensify.


 

 

 

 

 

Figure 2-14. Map of recreational trails, cultural and historic sites.

 

 

 

 

Figure 2-15. Map of important viewsheds.

 

 

 

Figure 2-16. Map of water-based recreation.

 

 

 

Figure 2-17. Map of camping and hunting areas.

 



[1] Unless otherwise noted, the discussion of forest-land ownership refers to the greater Highlands Region which includes Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex, Morris, Passaic, Somerset, Sussex, Union, and Warren counties in New Jersey and Dutchess, Orange, Putnam, Rockland, Westchester counties in New York.

[2] The principal data sources are forest land ownership surveys conducted in 1994 and 1988 in New York and New Jersey, respectively.