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• water control on land used for cropland and pasture also may create a recognizable <br />pattern that m oy aid in identification of the land use. In areas of quick-growing <br />crops, a field may appear to be in nonagricultural use unless the temporary nature <br />of the inact;vity is recognized. <br />24. Other Agricultural Land <br />Other land uses typically associated with the first three cotegories of <br />Agricultural Land are the principal components of the Other Agriculturol Land <br />category. They include farmsteads, holding areas for livestock such as corrals, <br />breeding and training facilities on horse farms, farm lanes and roads, ditches and <br />canals, small farm ponds, and similar uses. Such occurrences generally are quite <br />small in area and often uninterpretable by use of high-altitude data. Even when they <br />are interpretable from such data, it may not be feasible to map them at small <br />presentation scales, which generally results in their inclusion with adjacent <br />agricultural use areas. This category should also be used for aggregating data for <br />land uses derived at more detailed levels of classification. <br />• 3. RANGELAND <br />Rangeland historically has been defined as land where the potential natural <br />vegetation is predominantly grasses, grasslike plants, fortis, or shrubs and where <br />noutral herbivory was an important influence in its precivilizotion state. Monage- <br />menT techniques which associate soil, water, and forage-vegetation resources are <br />more suitable for rangeland management than are practices generally used in <br />managing pastureland. Some rangelands have been or may be seeded to introduced <br />or domesticated plant species. Most of The rangelands in the United States are in <br />the western range, the area to the west of an irregular north-south line that cuts <br />through the' Dakotas, Nebraska, Kansas, Oklahoma, and Texas. Rangelands also are <br />found in certain places historically not included in the western range, such as the <br />Flint Hills, the Southeastern States, and Alaska. The historical connotation of <br />Rangeland is expanded in this classification to include those areas in the Eastern <br />States which commonly are called brushlands. <br />The Level II categories of Rangeland are: Herbaceous Range, Shrub and Brush <br />Rangeland, and Mixed Rangeland. <br />C~ <br />2.9-7 <br />