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Custom Soil Resource Report <br /> Table—Ecological Site Name: Plant Associations, Region 2 Forest <br /> Service (Russell Painter ) <br /> Ecological Site Name:Plant Associations,Region 2 Forest Service—Summary by Map Unit—Pike National Forest,Eastern <br /> Part,Colorado,Parts of Douglas,El Paso,Jefferson;and Teller Counties(C0640) <br /> Map unit symbol Map unit name, Rating Acres in AOI Percent of A01 <br /> 44 Sphinx gravelly coarse Ponderosa pine/ 14.5 100.0% <br /> sandy loam,warm, 15 kinnikinnick(PIPO/ <br /> to 40 percent slopes ARUV) <br /> Totals for Area of Interest 14.5 100.0% <br /> Rating Options—Ecological Site Name: Plant Associations, <br /> Region 2 Forest Service (Russell Painter ) <br /> Class: Plant Associations, Region 2 Forest Service <br /> Aggregation Method: Dominant Condition <br /> Component.Percent Cutoff. None Specified <br /> Tie-break Rule: Lower <br /> Vegetative Productivity <br /> Vegetative productivity includes estimates of potential vegetative production for a <br /> variety of land uses, including cropland,forestland, hayland, pastureland, horticulture <br /> and rangeland. In the underlying database, some states maintain crop yield data by <br /> individual map unit component. Other states maintain the data at the map unit level. <br /> Attributes are included for both, although only one or the other is likely to contain data <br /> for any given geographic area. For other land uses, productivity data is shown only at <br /> the map unit component level. Examples include potential crop yields under irrigated <br /> and nonirrigated conditions, forest productivity, forest site index, and total rangeland <br /> production under of normal, favorable and unfavorable conditions. <br /> Range Production (Normal Year) (Russell Painter ) <br /> Total range production is the amount of vegetation that can be expected to grow <br /> annually in a well managed area that is supporting the potential natural plant <br /> community. It includes all vegetation,whether or not it is palatable to grazing animals. <br /> It includes the current year's growth of leaves,twigs,and fruits of woody plants. It does <br /> not include the increase in stem diameter of trees and shrubs.It is expressed in pounds <br /> per acre of air-dry vegetation. In a normal year,growing conditions are about average. <br /> Yields are adjusted to a common percent of air-dry moisture content. <br /> In areas that have similar climate and topography, differences in the kind and amount <br /> of vegetation produced on rangeland are closely related to the kind of soil. Effective <br /> management is based on the relationship between the soils and vegetation and water. <br /> 17 <br />