street trees and streetscapes
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Presentation given by Jennifer Greenfeld, 10.21.09TRANSCRIPT
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Streetscapes and Street TreesNew York City Community Forestry Management Case Study
Jennifer GreenfeldCentral Forestry & Horticulture
New York City Parks & Recreation
Green Infrastructure SymposiumOctober 21, 2009
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2Long Term Strategic Planning
62% of acreage of NYC impervious
� 126,729 acres of buildings and other paved surfaces
� 6,375 miles of roadway
38% of acreage of NYC pervious
� 78,095 acres of tree, grass, or soil coverage
� 5.2 million trees
NYC Urban Landscape
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3Long Term Strategic Planning
1,651 acres of freshwater wetland
Environment
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4Long Term Strategic Planning
1,498 acres of salt marsh
Environment
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5Long Term Strategic Planning
1,444 acres of meadow/grassland
Environment
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6Long Term Strategic Planning
5,136 acres of forest
Environment
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7Long Term Strategic Planning
Environment
Estimated 2 million trees in landscaped parks
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8Long Term Strategic Planning
Environment
• 700 Community gardens
• 282 are permanent parkland
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9Long Term Strategic Planning
Environment
2 nurseries and 3 greenhouses
Greenbelt Native Plant Center and seedbank
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10Long Term Strategic Planning
Environment
2,500 ornamental gardens
Abington Square, Manhattan Clove Lakes Park, Staten Island
Brooklyn Heights Promenade
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11Long Term Strategic Planning
2,423 greenstreets
Environment
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12Long Term Strategic Planning
592,130 street trees
Environment
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13Long Term Strategic Planning
New York City’s Tree Canopy
NYC lost 9,000 acres of vegetative cover between 1984 – 2002
(satellite imagery analysis)
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14Long Term Strategic Planning
Relative Area
< 10%
15%
20%
25%
30%
35%
40%
45%
50%
> 50%
Canopy Cover
New York City has 24% canopy cover
� 44,000 acres of land area
� 5.2 million trees
� 50% under Parks jurisdiction
� valued at $5.2 billion in replacement costs
As compared to other U.S. cities:
City Tree Cover (%)
Atlanta, GA 37
Austin, TX 34
Boston, MA 29
Washington, DC 28Seattle, WA 25
New York City, NY 24
Cambridge, MA 20
Baltimore, MD 19
Philadelphia, PA 16
Jersey City, NJ 11
Chicago, IL 11
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15Long Term Strategic Planning
Street Tree Inventory
Type of Data Collected
• species• size• condition• growing conditions• infrastructure conflicts
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16Long Term Strategic Planning
Street Tree Inventory Results
NYC's Top Ten Street Trees (%)
London planetree 15.3 Littleleaf linden 4.7Norway maple 14.1 Green ash 3.5Callery pear 10.9 Red maple 3.5Honeylocust 8.9 Silver maple 3.2Pin oak 7.5 Ginkgo 2.8
Dead
1%Poor
8%
Good
67%
Excellent
24%
Dead Poor Good Excellent
Number of Street Trees
• 1995 -- 498,470 trees• 2005 -- 592,130 trees (19% increase)
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17Long Term Strategic Planning
592,130TOTAL TREES
PROPERTY VALUES
$52 million
STORM WATER RUNOFF
$36 million
ENERGY SAVINGS
$27 million
$122TOTAL BENEFITS
Callery Pear
Honey Locust
Pin Oak
London Planetree
15%
Norway Maple
14%
10%
8%
7.5%
AIR QUALITY
$5.3 million
CO2 REDUCTION
$0.75 million
Street Tree Benefits
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18Long Term Strategic Planning
592,130 Street Trees � 27% tree planting sites empty
� space for an additional 220,000 trees
Current Street TreeStocking Levels
Street Tree Distribution
Borough New trees
Bronx 50,000
Brooklyn 70,000
Manhattan 20,000
Queens 55,000
Staten Island 27,000
Total 220,000
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19Long Term Strategic Planning
Street Tree Planting: By Request
Street Tree Planting
6,346
9,1928,267 8,200
13,545
15,45316,525
17,593 17,106
10,464 10,258
8,4037,160
8,494
6,754 6,254
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
Annual Year
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20Long Term Strategic Planning
Health and Economic Factors
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21Long Term Strategic Planning
Current Street TreeStocking Levels
Trees for Public Health (TPH)
Morrisania
East Harlem
East New York
Stapleton
Rockaways
Hunts Point
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22Long Term Strategic Planning
TPH: Process
Select Select
SitesSites
Set Priorities Set Priorities
with Partnerswith Partners
Data Collection Data Collection
& Synthesis& Synthesis
IdentifyIdentify
Community Community
PartnersPartners
Finalize Finalize
Greening Greening
PlansPlans
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23Long Term Strategic Planning
Community Forestry Management Plans
•Tree Survey
•Tree Planting Opportunity Survey
•Analyze Data
•Community Outreach
TPH: Management Plans
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24Long Term Strategic Planning
On Earth Day 2007, Mayor Bloomberg unveiled a comprehensive plan to improve our urban environment….
PlaNYC
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25Long Term Strategic Planning
Fully plant NYC’s streets
with 220,000 trees
Build 800 new Greenstreets
Re-landscape and reforest
2,000 acres of parkland
PlaNYC & Greening
10 years and $300 million in capital funds to:
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26Long Term Strategic Planning
Street Tree Planting: By Request
Street Tree Planting
6,346
9,1928,267 8,200
13,545
15,45316,525
17,593 17,106
10,464 10,258
8,4037,160
8,494
6,754 6,254
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
Annual Year
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27Long Term Strategic Planning
Street Tree Planting: Strategic
0
5000
10000
15000
20000
25000
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Fiscal Year
PlaNYC
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28Long Term Strategic Planning
Strategic Planting
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29Long Term Strategic Planning
Block Planting
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30Long Term Strategic Planning
East Harlem Block Planting
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31Long Term Strategic Planning
Walk East Harlem
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32Long Term Strategic Planning
Walk East Harlem
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33Long Term Strategic Planning
October 9, 2007 Press Launch
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34Long Term Strategic Planning
MillionTreesNYC
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35Long Term Strategic Planning
MillionTreesNYC
Two years…
…252,170 trees
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36Long Term Strategic Planning
Challenges
� Framing the message for community and city decision makers. Quantification of benefits is key to success.
� Developing a sustainable community group to foster local stewardship and move implementation forward.
� Monitoring success. Need local baseline data and monitoring to compare results.
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37Long Term Strategic Planning
www.milliontreesnyc.orgwww.nyc.gov/parks