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Custom Soil Resource Report <br />plant community with the potential natural plant community on a particular rangeland <br />ecological site. The more closely the existing community resembles the potential <br />community, the higher the range similarity index. Rangeland trend is defined as the <br />direction of change in an existing plant community relative to the potential natural plant <br />community. Further information about the range similarity index and rangeland trend <br />is available in the "National Range and Pasture Handbook," which is available in local <br />offices of NRCS or on the Internet. <br />The objective in range management is to control grazing so that the plants growing <br />on a site are about the same in kind and amount as the potential natural plant <br />community for that site. Such management generally results in the optimum <br />production of vegetation, control of undesirable brush species, conservation of water, <br />and control of erosion. Sometimes, however, an area with a range similarity index <br />somewhat below the potential meets grazing needs, provides wildlife habitat, and <br />protects soil and water resources. <br />Reference: <br />United States Department of Agriculture, Natural Resources Conservation Service, <br />National range and pasture handbook. <br />Report-Rangeland Productivity (Yuma County - Moser Pit) <br /> <br />1 <br />Rang <br />1 <br />eland Productivity- Yuma County, Colorado <br />Map unit symbol and soil name Ecological site Total dry-weight production <br /> Favorable year Normal year Unfavorable <br /> year <br /> Lb/ac Lb/ac Lb/ac <br /> <br />18-Haxtun loamy sand -- - ----- --------- - ---------- <br /> <br />Haxtun <br />- -- _..--- --- - <br />Sandy Plains - <br /> <br /> <br />--- - ----- <br />2,300 <br /> <br />--- -- - <br />1,750 , 1,000 <br /> <br /> <br />22-Julesburg loamy sand, 0 to 3 - <br />--- <br />percent slopes <br />- - -- ------ <br /> <br />Julesburg <br />--- <br />Deep Sands <br />- <br /> <br />- <br />2,500 <br />- ------- - - -- -.. <br />2,000 1,500 <br /> <br />23-Julesburg loamy sand, 3 to 7 - - -- - - - -- - <br />percent slopes <br /> <br />Julesburg <br />---- ------ --- - -------------- - - --------- - ------------- -- ---- -- ------ <br />Deep Sands <br /> <br />--- - - - ---------- - ---------- - - -- - -- - ----- <br /> <br /> <br />------ -- <br />2,500 <br /> <br />- - - - -- --- -------------- <br />2,000 1,500 <br /> <br />- ----------------- <br />Water Features <br />This folder contains tabular reports that present soil hydrology information. The reports <br />(tables) include all selected map units and components for each map unit. Water <br />Features include ponding frequency, flooding frequency, and depth to water table. <br />Water Features (Yuma County - Moser Pit) <br />This table gives estimates of various soil water features. The estimates are used in <br />land use planning that involves engineering considerations. <br />28