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Show Table 1.--Summary of watershed management land treatment practices applied to federal land, Upper Colorado Region, 1965 PART II Treatment Practices Unit Green River Subregions Upper Main Stem San Juan- Colorado Region Total Land Treatment Brush and Weed Control Watershed Tillage 1/ Seeding Stabilization 2/ Gully Control Sheet Erosion Water Control Detention Dams Check and Drop Structures Diversion Dams Dikes Streambank-Lakeshore Stab. Water Yield Improvement Vegetal Type Conversion Ac. Ac. Ac. Ac. Mi. Ac. No, No, No, No, Mi, Ac, 205,600 20,000 128,900 655 23 7,030 39 459 7 43 159 1,000 199,100 41,000 223,700 870 33 5,500 19 9,817 24 37 13 122,600 4,200 153,500 290 32 12,800 64 1,041 19 42 527,300 65,200 506,100 1,815 88 25,330 122 11,317 50 122 172 1,000 lj Includes contour furrowing and trenching, ripping, pitting, terracing, land smoothing, plowing. 2] Includes roads and trails, mined areas, dunes, other. NATURE, USE AND MANAGEMENT OF WATERSHED LAND |