Page 937 - trc_centennial_deir201705

5.7 Biological Resources

TABLE 5.7-11
IMPACTS TO VEGETATION TYPES

Existing Existing Percent
On-Site Off-Site Total Impact of
Areas Areas a Existing Total (acres)
Vegetation Type (acres) (acres) (acres)
Rabbitbrush Scrub 222.9 30.5 253.4 30.50%
Wand Buckwheat Scrub 0.6 – 0.6 0.00%
Wright’s Buckwheat Scrub* 12.2 – 12.2 0.00%
Yucca Scrub 8.9 – 8.9 52.40%
Group Total 685.1 30.7 715.8 50.2%
Broad Leafed Upland Tree-Dominated Vegetation Type
Mixed Oak Woodland* 1,370.8 – 1,370.8 0.45%
Group Total 1,370.8 – 1,370.8 0.45%
Riparian and Bottomland Vegetation Types
Alluvial Scrub* 5.2 0.4 5.6 92.30%
Cottonwood Woodland* 0.1 – 0.1 0.00%
Riparian Herb* 52.7 0.6 53.3 12.56%
Rush Riparian Grassland* 48.1 0.8 48.9 2.88%
Southern Arroyo Willow Riparian b* 8 . 6 – 8.6 14.90%
Southern Cottonwood Willow Woodland 4.0 – 4.0 0.00%
b*
Southern Willow Scrub* 12.8 0.3 13.1 12.53%
Unvegetated Wash* 25.5 0.2 25.7 9.97%
Valley Oak Riparian Woodland* 12.1 – 12.1 0.00%
Willow Riparian Forest* 15.1 – 15.1 10.88%
Willow Riparian Woodland* 8.0 0.3 8.3 13.16%
Group Total 192.1 2.6 194.7 11.0%
Bog and Marsh Vegetation Types
Alkali Meadow 3.7 – 3.7 65.76%
b*
Baltic Rush 21.5 – 21.5 34.72%
b*
Coastal and Valley Freshwater Marsh 2.4 0.1 2.5 2.00%
b*
Seeps and Ephemeral Ponds* 8.0 0.0 8.0 10.90%
Group Total 35.6 0.1 35.7 30.11%
Grass- and Herb-Dominated Vegetation Types
c
Native Perennial Grassland*/California Annual 9,076.1 81.4 9,161.4 70.03%
Grassland
Group Total 9,076.1 81.4 9,161.4 70.03%
Mixed Chaparral or Scrub and Grassland Vegetation Types
c
Bush Lupine Scrub/Native Perennial 1.4 – 1.4 0.00%
Grassland*/California Annual Grassland
California Buckwheat Scrub/Native Perennial 7.0 – 7.0 0.00%
Grassland*/California Annual Grassland
Goldenbush Scrub/Native Perennial 8.3 – 8.3 14.37%
Grassland*/California Annual Grassland

R:\Projects\PAS\CEN\000306\Draft EIR\5.7 Bio_051117.docx 5.7-156 Centennial Project
Draft EIR