Arizona Strip Draft Plan/DEIS Chapter 3: Affected Environment CHAPTER 3. AFFECTED ENVIRONMENT.................................3.1 RESOURCES .......................................................................................... 3.1 AIR .......................................................................................................................................3.1 Overview...........................................................................................................................3.1 Parashant Air.....................................................................................................................3.2 Vermilion Air ....................................................................................................................3.2 Arizona Strip FO Air.........................................................................................................3.2 WATER................................................................................................................................3.3 Overview...........................................................................................................................3.3 Water Rights .................................................................................................................3.3 Surface Water Resources ..............................................................................................3.3 Ground Water Resources ..............................................................................................3.6 Parashant Water ................................................................................................................3.6 Surface Water Resources ..............................................................................................3.6 Ground Water Resources ..............................................................................................3.8 Vermilion Water ...............................................................................................................3.8 Surface Water................................................................................................................3.8 Ground Water Resources ..............................................................................................3.9 Arizona Strip FO Water....................................................................................................3.9 Surface Water Resources ..............................................................................................3.9 Ground Water..............................................................................................................3.10 SOILS.................................................................................................................................3.10 Overview.........................................................................................................................3.10 Soil Productivity .........................................................................................................3.11 Soil Salinity.................................................................................................................3.13 Soil Compactability.....................................................................................................3.13 Water Erodibility.........................................................................................................3.17 Wind Erodibility .........................................................................................................3.19 Parashant Soils ................................................................................................................3.22 Productive Soils ..........................................................................................................3.22 Saline Soils..................................................................................................................3.22 Compactable Soils.......................................................................................................3.22 Water Erodible Soils ...................................................................................................3.23 Wind Erodible Soils ....................................................................................................3.23 Vermilion Soils ...............................................................................................................3.23 Soil Productivity .........................................................................................................3.23 Saline Soils..................................................................................................................3.24 Compactable Soils.......................................................................................................3.24 Water Erodible Soils ...................................................................................................3.24 Wind Erodible Soils ....................................................................................................3.24 Arizona Strip FO Soils....................................................................................................3.24 Soil Productivity .........................................................................................................3.25 Saline Soils..................................................................................................................3.25 Compactable Soils.......................................................................................................3.25 3 - i Arizona Strip Draft Plan/DEIS Chapter 3: Affected Environment Water Erodible Soils ...................................................................................................3.25 Wind Erodible Soils ....................................................................................................3.25 GEOLOGY AND PALEONTOLOGY...........................................................................3.26 Overview.........................................................................................................................3.26 Physiography...............................................................................................................3.26 Historical Geology and Stratigraphy...........................................................................3.28 Paleontology................................................................................................................3.28 Parashant Geology and Paleontology .............................................................................3.28 Vermilion Geology and Paleontology.............................................................................3.31 Arizona Strip FO Geology and Paleontology .................................................................3.32 VEGETATION..................................................................................................................3.32 Overview.........................................................................................................................3.32 Ecological Zones.........................................................................................................3.34 Parashant Vegetation.......................................................................................................3.45 Ecological Zones.........................................................................................................3.45 Vermilion Vegetation......................................................................................................3.47 Ecological Zones.........................................................................................................3.47 Arizona Strip FO Vegetation ..........................................................................................3.49 Ecological Zones.........................................................................................................3.49 FIRE AND FUELS MANAGEMENT ............................................................................3.51 Overview.........................................................................................................................3.51 History.........................................................................................................................3.51 Fuels Treatments.........................................................................................................3.52 Fire Management ........................................................................................................3.53 Wildland-Urban Interface ...........................................................................................3.54 Smoke Management....................................................................................................3.54 Parashant Fire and Fuels Management ...........................................................................3.55 Vermilion Fire and Fuels Management ..........................................................................3.55 Arizona Strip FO Fire and Fuels Management ...............................................................3.55 FISH AND WILDLIFE ....................................................................................................3.55 Overview.........................................................................................................................3.55 Parashant Fish and Wildlife ............................................................................................3.60