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Upper Claggett Watershed Data
The value of trees
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| Table 5 Land cover Distribution:
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1,130 acres (24%) Disturbed Land (Graded/Grubbed)
1,164 acres (25%) Impervious Roads
458 acres (10%) Impervious Buildings
1,536 acres (32%) Open Space/Pasture/Meadow
421 acres (9%) Forest Patches
32 acres (0.7%) Water
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Stormwater Management in: cubic feet................................. 0*
(one time value) U.S. dollars..............................$0*
Annual Air Pollution Removal Value in: pounds....................................320,116
U.S. dollars.............................$665,613
Total Carbon Stored: tons..........................................2,041
Carbon Sequestered Annually: tons..........................................15.89
Total Economic Benefit: U.S. dollars..............................$665,613
*Change in watershed for stormwater management is minimal with a "no tree" scenario
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| Scroll down for more detailed information about the above data . |
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Total Area:
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7.41 sq. miles
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1,919.91 sq. km (hectares)
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4,744.04 acres
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Landcover Composition:
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0.69% of UPPER CLAGGETT
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32.72 acres
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- Water Area (100)
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8.88% of UPPER CLAGGETT
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421.36 acres
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- Forest Patches
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32.38% of UPPER CLAGGETT
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1,536.11 acres
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- Grass w/ Scattered Shrubs
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23.83% of UPPER CLAGGETT
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1,130.50 acres
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- Disturbed land (87)
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9.67% of UPPER CLAGGETT
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458.83 acres
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- Impervious Surfaces: Buildings
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24.54% of UPPER CLAGGETT
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1,164.37 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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a
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- Age Distribution:
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Average or Unknown
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- Storage Capacity (tons):
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2,041.29
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- Sequestration Rate (tons/year):
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15.89
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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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aa
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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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116,604.56
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$ 357,925.70
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- - SO2 (Sulfur Dioxide)
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50,285.12
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$ 37,808.72
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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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125,902.56
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$ 257,972.16
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a
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- - CO (Carbon monoxide)
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27,324.75
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$ 11,907.14
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Totals:
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320,116.98
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$ 665,613.72
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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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- Site Avg. Slope (%):
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3.59
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- Rainfall Region:
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IA
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a
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- Hydrologic Soil Group:
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C
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a
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Current Conditions
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Modeled w/out trees
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- Curve Number:
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88
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88
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- Runoff Depth (in):
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2.96
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2.96
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- Time of Concentration (hrs):
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3.54
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3.54
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- Peak Flow (cfs):
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1,443.45
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1,443.45
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- Runoff Volume (cu. ft.):
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51,003,105.51
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51,003,105.51
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- Storage required to mitigate the change in peak flow (cu. ft.):
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0
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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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$0.00
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Change in watershed is minimal w/ no tree scenario
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