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East Bank Watershed Data
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The value of trees
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Table 7
Land cover Distribution: |
1,262 acres (24%) Disturbed Land (Graded/Grubbed)
305 acres (25%) Impervious Roads
72 acres (1%) Impervious Buildings
2,225 acres (42%) Open Space/Pasture/Meadow
1352 acres (26%) Forest Patches
25 acres (0.5%) Water
x |
Stormwater Management in: cubic feet................................. 1,812,462
(one time value) U.S. dollars..............................$3,624,923 Annual Air Pollution Removal Value in: pounds....................................86,857
U.S. dollars.............................$180,600
Total Carbon Stored: tons..........................................554
Carbon Sequestered Annually: tons.........................................4.31
Total Economic Benefit: U.S. dollars.............................$3,805,524
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a |
| Scroll down for more detailed information about the above data . |
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Total Area:
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2.01 sq. miles
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a
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520.94 sq. km (hectares)
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a
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1,287.22 acres
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Landcover Composition:
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04.72% of EAST BANK
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60.79 acres
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- Water Area (100)
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a
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12.04% of EAST BANK
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154.93 acres
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- Forest Patches
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aaa
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30.97% of EAST BANK
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398.65 acres
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- Grass w/ Scattered Shrubs
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a
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25.28% of EAST BANK
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325.39 acres
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- Disturbed land (87)
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06.08% of EAST BANK
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78.26 acres
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- Impervious Surfaces: Buildings
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a
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20.91% of EAST BANK
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269.15 acres
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- Impervious Surfaces: Paved Streets
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Definitions:
- Forest Patches (Wooded or forested with non-turf understory): Woods grazed but not burned, some forest litter (Fair Hydrologic Condition).
- Grass/Scattered Trees (Lawns, parks, golf courses, cemeteries, etc.): Grass cover < 50% (Poor Hydrologic Condition).
- Disturbed land - Graded, grubbed, minimal vegetation.
- Impervious Surfaces: Buildings, pavilions and other man-made structures, paved streets, open ditches.
- Sequestration: The rate at which a tree adds carbon to its biomass.
- Carbon storage: The amount of carbon stored in tree biomass.
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Ecological Services:
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Carbon Removal Benefits:
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j
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a
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- Age Distribution:
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Average or Unknown
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j
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a
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- Storage Capacity (tons):
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553.86
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j |
a
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- Sequestration Rate (tons/year):
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4.31
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j |
a
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a
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Air Pollution Removal Benefits:
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a
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- Air-Quality Reference City:
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Seattle
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a
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- Contaminant:
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Lbs/Year:
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Dollar Value:
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a
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- - O3 (Ozone)
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31,638.29
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$ 97,115.91
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a
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- - SO2 (Sulfur Dioxide)
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13,643.85
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$ 10,258.63
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a
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- - NO2 (Nitrogen dioxide)
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0
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$ 0.00
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a
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- - PM10 (particulates <10 microns)
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34,161.12
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$ 69,995.54
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a
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- - CO (Carbon monoxide)
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7,414.02
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$ 3,230.76
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a
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Totals:
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86,857.28
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$ 180,600.85
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a
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a
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a
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a
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Stormwater Runoff Control Benefits :
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- Avg. 2-yr, 24-hour Precipitation (in.):
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4.25
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s
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- Site Avg. Slope (%):
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3.59
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s
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- Rainfall Region:
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IA
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s
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- Hydrologic Soil Group:
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C
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s
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ss
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Current Conditions
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Modeled w/out trees
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s
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- Curve Number:
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87
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88
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s
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- Runoff Depth (in):
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2.87
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2.96
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s
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- Time of Concentration (hrs):
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1.96
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1.89
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s
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- Peak Flow (cfs):
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488.71
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512.43
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s
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- Runoff Volume (cu. ft.):
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13,395,659.23
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13,838,936.34
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s
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- Storage required to mitigate the change in peak flow (cu. ft.):
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1,812,461.61
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Total Economic Benefit of Trees in Salem UGB
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- Construction Cost (@
$2.00/ cu ft.):
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$3,624,923.22
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