Competitive Grant with USFS Southern Region for Arkansas, Tennessee and Mississippi

Transcription

1 URBAN TREE CANOPY ASSESSMENTS IN ARKANSAS THE RESTORATION OF OUR RIVERS Crystal Bridges Museum of American Art Bentonville, Ak Arkansas October

2 PROGRAM IMPLEMENTATION Competitive Grant with USFS Southern Region for Arkansas, Tennessee and Mississippi

3 REGIONAL GOAL & OBJECTIVES oal nable 16 communities in the Mid South to establish canopy cover goals bjectives measure existing canopy in participating communities provide a base of information for increasing environmental services in these communities build awareness of the benefits of healthy urban forests establish canopy goals & strategies for maintaining/improving canopy in these communities ii strengthen partnership between the state forestry agencies and participating p communities

4 URBAN TREE CANOPY OBJECTIVES ap land cover classes across the Cities ssess existing tree canopy and planting areas stimate Urban Forest Ecosystem Services reate Urban Forest Management Scenarios showing how UTC s changed over time and/or future projected canopy & nefits rioritizetree tree plantingopportunities rovide educational presentations/training okat scenarios for zoning orlanduse entify and Enhance Watersheds e Datasets roads, hydrology, and buildings

5 le planting area (Impervious) Possible planting area (Vegetation) ing UTC UTC Change UTC Types

6 isting UTC Picturing UTC Assessment Terminology Possible Planting Area (PPA) Vegetation Possible Planting Area (PPA) Impervious 100% 60% 35% Grass PlantingArea 40% 30% Impervious Planting Area 35% 0% Urban Tree Canopy Property Boundary Land Cover Types UTC and PPA Percentage

7 IMAGERY FOR LAND COVER MAPPING 010 Leaf On National Agricultural Imagery Program Aerial Photography 4 spectral bands, 1 meter pixel resolution l Color Fl False Color (k (aka, Color Infrared)

8 GIS DATA INPUTS Layer and Usage: ildings, roads, sidewalks, parking lots; To refine automated t dimpervious i mapping y boundary, land use/parcels, census cks, watersheds, street trights of way iht OW) To assess and summarize land cover including existing iti canopy and potential planting areas hools, trails, streams, parks, wildlife bitat, t buildings, and land use To prioritize potential tree planting sites Fayetteville City Limits Trails Highways Buildings Rights of Way Riparian Corridors

9 UTC ASSESSMENT BOUNDARIES City City boundary nd Use Agriculture Commercial Industrial Public Land Residential Public Right of Way us Blocks 2010 U.S. Census data provides demographic data available at the tract, block group and block level.

10 UTC ASSESSMENT BOUNDARIES (CONTINUED) Riparian orridors Buffered streams & rivers, segmented into finer scale reaches Street hts of Way Public rights of way along streets cels/zoning Districts Tax lots from assessors property database

11 LAND COVER CLASSIFICATION sses Tree canopy Grass / open space Buildings Roads Otherpaved impervious surfaces Bare soil & Dry Vegetation Water Agriculture cess Steps: Object Based Image Analysis (OBIA) Incorporate existing data Quality Assurance / Quality Control Post processing steps, data management

12 LAND COVER LASSIFICATION

13 sessingtheecosystem Services d Benefits of Trees ypes of Urban Tree Benefits ITYgreen BenefitsScenarios Tree Design Benefits Scenarios

14 UTC IN THE CITY OF FAYETTEVILLE Street & Yard Planting Area Impervious Planting Area Existing Urban Tree Canopy

15 CENSUS BLOCKS (SOCIO(SOCIO-ECONOMIC UNITS) Existing Tree Canopy 1,894 census blocks, have less than 40% UTC 1, have less than 10% UTC l Possible Planting Area (Grass / n Space and Parking Lots) 1,719 have more than 25% total plantable area 1,037 have more than 50% total plantable area

16 USING THE RESULTS: RIPARIAN CORRIDORS POTENTIAL PLANTING AREAS IN VEGETATION e Planting in tation ut of 69) Riparian idors segments >40% PPA Veg iparian Corridors <20% PPA Veg Watersheds with Largest PPA Veg Acreage & Planting Sites Hamestring Creek 69 acres PPAVeg & 1,559 planting sites Mud Creek Clear Creek 77 acres & 3,037 planting sites Town Branch West Fork White River 107 acres & 3,729 planting sites

17 MAJOR FINDINGS FOR FAYETTEVILLE Fayetteville has 36% urban tree canopy cover based on 2010 imagery Current urban forest removes nearly 1.3M pounds of air pollutants from the air annually (valued at $3.5M per year) 1.1billionpounds ofstoredcarbon withan annual carbon sequestration rate of 8.4M pounds of CO2 taken up by the tree canopy Stormwater Savings: At 36% UTC, Fayetteville s tree canopy is valued at an estimated $64M basedon avoided stormwaterfacility ac tyconstruction o costs There are 50,000 potential tree planting locations near residential buildings

18 NORTH LITTLE ROCK UTC BY WARDS

19 NORTH LITTLE ROCK The total annual savings in ecosystem benefits of existing canopy is $11.8 M $1.1M 1M in carbon sequestration $3.9M in air pollutant removal $6.8M in storm water mitigation

20 WEST MEMPHIS ECOSYSTEM BENEFITS

21 WEST MEMPHIS UTC BENEFITS est Memphis UTC is a vital sset to the City; providing over 4.3 million in environmental, conomic, and social benefits. he City s existing UTC is 11.62% r the entire jurisdictional oundary and 18.06% within the ore city boundary. he possible UTC based on all the ossible area available a ab for lanting in the core city is 49%. he possible UTC based on the rgeted areas for planting in the ore city is 24%. creasing UTC from 18% to 24% ithin the core city boundary will roduce an increase in benefits

22 WEST MEMPHIS TARGETED TREE PLANTING AREAS

23 eman Creek Watershed: Percent PPA Impervious by Parcel < 10% 10-20% 20-40% > 40% Waterway Stree Rights-of-Way cels within 500 ft of Waterways Waterway UTC < 30% & PPA Impervious > 20%

24 i-tree DESIGN AND ENERGY CONSERVATION easy to use online tool red oak planted on the west of a residential home provides in annual energy savings. r 25 years, it would provide $48 nnual energy savings. 50,000 potential planting tions near residential homes, ting 1/4 of these could provide hly $600,000 in energy savings ually when those trees reach urity.

25 entral Business Districts: 15% ESTABLISHING URBAN TREE CANOPY GOALS American Forests Recommended Canopy Cover For Metropolitan Areas West of the Mississippi River. verage of all Zones: 40% uburbanresidential Zones: 50% rban Residential Zones: 25%

26 ffectiveness of Tree Protection Ordinance Urban Forest Management Scenarios Canopy Comparison argeting PriorityPlantingSitesPlanting ity Owned Properties

27 DATA SOURCES FOR CANOPY COMPARISON.i Tree Canopy software.gis based Land Cover Comparison.Growth of New Trees from Development

28 yetteville, 2002 EXAMPLE OF CANOPY LOSS

29 rest Loss Area EXAMPLE OF CANOPY LOSS

30 CANOPY GAIN FROM NATURAL REGENERATION tteville, 2002 tteville, 2010

31 EXAMPLES OF CANOPY GAINS & LOSSES Fayetteville, 2002 Fayetteville, 2010

32 URBAN HEAT ISLAND EFFECT

33 RITIZING TENTIAL ANTING SITES Urban Heat Island Near Habitat City Owned Along Right of Way Along Riparian Corridor Energy Conservation Air Quality (Along Highway) Along Trail Park Near Park School Near School

34 WILDLIFE HABITAT lanting site points symbolized & queried by: ological and other data from the Fayetteville Natural Heritage Association rge contiguous forested areas and riparian corridors

35 OVERALL RECOMMENDATIONS hare the assessment data and report broadly with diverse partners. evelop programs and use the UTC data sets to target residential and ommercial tree planting and tree care. ssess forest stands at risk from development for preservation potential, and ssess forest ecological quality to rank areas for preservation. se the data to: a) Develop Best Management Practices (BMPs) b) Educate on the benefits of trees and forests c) Continue to assess the effectiveness of tree preservation ordinances xplore all partnerships to meet goals. llow natural regeneration to contribute to the city s canopy goals. e assess canopy cover every 8 10 years using comparable techniques

36 EVALUATING AND CONSERVING NATURAL ASSETS MAXIMIZING CONSERVATION POTENTIAL IN THE DEVELOPING LANDSCAPE Presented by the Green Infrastructure Center & AUFC October 9, 2013 River Market Little Rock, Arkansas October 11, 2013 Arvest Ballpark Springdale, Arkansas 9:00am 3:00pm

37 THANK YOU FC appreciates the information that was provided by: lan it GEO avey Resource Group ayetteville Natural Heritage Association ity of Fayetteville ity of North Little Rock ity of West Memphis nd support by the U.S.D.A. Forest Service, Urban Forestry South, Centers for Urban & Interface Forestry