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Soil Information for Rangeland <br />Soil Reports <br />The Soil Reports section includes various formatted tabular and narrative reports <br />(tables) containing data for each selected soil map unit and each component of each <br />unit. No aggregation of data has occurred as is done in reports in the Soil Properties <br />and Qualities and Suitabilities and Limitations sections. <br />The reports contain soil interpretive information as well as basic soil properties and <br />qualities. A description of each report (table). is included. <br />Vegetative Productivity <br />This folder contains a collection of tabular reports that present vegetative productivity <br />data. The reports (tables) include all selected map units and components for each <br />map unit. Vegetative productivity includes estimates of potential vegetative production <br />for a variety of land uses, including cropland, forestland, hayland, pastureland, <br />horticulture and rangeland. In the underlying database, some states maintain crop <br />yield data by individual map unit component. Other states maintain the data at the <br />map unit level. Attributes are included for both, although only one or the other is likely <br />to contain data for any given geographic area. For other land uses, productivity data <br />is shown only at the map unit component level. Examples include potential crop yields <br />under irrigated and nonirrigated conditions, forest productivity, forest site index, and <br />total rangeland production under of normal, favorable and unfavorable conditions. <br />Rangeland Productivity and Plant Composition (Yuma <br />County Moser Pit) <br />In areas that have similar climate and topography, differences in the kind and amount <br />of rangeland or forest understory vegetation are closely related to the kind of soil. <br />Effective management is based on the relationship between the soils and vegetation <br />and water. <br />This table shows, for each soil that supports vegetation suitable for grazing, the <br />ecological site; the total annual production of vegetation in favorable, normal, and <br />unfavorable years; the characteristic vegetation; and the average percentage of each <br />species. An explanation of the column headings in the table follows. <br />An ecological site is the product of all the environmental factors responsible for its <br />development. It has characteristic soils that have developed over time throughout the