Laserfiche WebLink
basin is generally steep mountain canyons and, based on contour mapping and an <br />understanding of the area, Teller County irrigated acreage should not be included in <br />SPDSS efforts. <br />^ Denver County -Denver County is essentially entirely urban. CASS does not report any <br />irrigated acreage for Denver County for the period 1950 through 2002. <br />^ Elbert County -Elbert County provides runoff to both the South Platte River basin and <br />the Arkansas River basin. Based on satellite imagery delineation of irrigated lands, it is <br />estimated that 50 percent of the irrigated acreage is in the South Platte River basin and 50 <br />percent is in the Arkansas River Basin <br />^ El Paso County - Only a very small portion of El Paso County provides runoff to the <br />South Platte River basin, nearly the entire county is in the Arkansas River basin. <br />Therefore, it is recommended that El Paso County irrigated acreage should not be <br />included in SPDSS efforts. <br />^ Washington County -Washington County provides runoff to both the South Platte River <br />basin and to the Republican River basin. Based on satellite imagery delineation of <br />irrigated lands, it is estimated that 25 percent of the irrigated acreage is in the South <br />Platte River basin and 75 percent is in the Republican River basin. <br />As noted above, some of the reported irrigated acreage is not specifically tied to a county, only to <br />a Colorado Agricultural Statistics District. The Northeast District is completely within the South <br />Platte River basin, however only a small percent of the Northwest and Mountains District and the <br />East Central District are within either the North Platte River or South Platte River basins. <br />Therefore, we recommend all additional acreage under the "combined crops" categories for the <br />Northeast district be included in SPDSS efforts but none of the additional acreage under the <br />"combined crops" categories be included for either the Northwest and Mountains District or the <br />East Central District. <br />Reported Crops <br />During the study period of 1950 to 2002, CASS reported county-level information for the "Field <br />Crop" types shown in Table 2. This data varies in completeness from county to county and from <br />crop to crop. Because crops are grown both dry-land and under irrigation systems, CASS further <br />divides the crops shown in Table 2 into irrigated and non-irrigated categories. In addition, for <br />some crop categories, CASS also reports both planted and harvested acreage. <br />Page 4 of 13 <br />