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CRDSS_Task1_14-19_ImprovedEstimationIrrigatedAcres_GunnisonBasin
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Last modified
9/25/2011 10:18:50 AM
Creation date
5/29/2008 11:19:54 AM
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Decision Support Systems
Title
CRDSS Task 1.14-19 - Consumptive Use Model - Improvised Estimation of Irrigated Acreage in the Gunnison River Basin
Description
This task memorandum documents the methods used to improve the estimation of crop-type acreage and distribution by county for all irrigated crops in the Gunnison River basin.
Decision Support - Doc Type
Task Memorandum
Date
1/9/1995
DSS Category
Consumptive Use
DSS
Colorado River
Basin
Gunnison
Contract/PO #
C153658, C153727, C153752
Grant Type
Non-Reimbursable
Bill Number
SB92-87, HB93-1273, SB94-029, HB95-1155, SB96-153, HB97-008
Prepared By
Riverside Technology inc.
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? Estimated HU2 Acres For Each Crops 1985=(HU GIS1993 Alfalfa ) /(GIS1993 Total County Alfalfa ) * <br />Predicted 1985 county Total Alfalfa Acres. <br />? Estimated HU2 Alfalfa Acres For 1985 = (1111 /10849) * 44747 = 4582 Acres. <br /> <br />Table 7 shows estimated county acres in 1985 for each crop using GIS crops acres for 1993. The crop <br />type and distribution from GIS 1993 were preserved and applied for estimating county agricultural <br />statistics acreage for years 1985 to 1990. <br />TABLE 7 <br />ESTIMATED COUNTY ACRES USING GIS CROPS ACRES <br />EstimatedEstimatedEstimatedEstimatedEstimatedEstimated <br />Crops Crops CAS1985 CAS1986 CAS1987 CAS1988 CAS1989 CAS1990 <br />Type ACRES Crops Crops Crops Crops Crops Crops <br />COUNTY GIS 1993 GIS 1993 Acres Acres Acres Acres Acres Acres <br />Alfalfa 1111 1070 919 871 981 1087 998 <br />Delta <br />14020002 Pasture 6421 6185 5309 5031 5670 6282 5768 <br />Orchard 9 9 7 7 8 9 8 <br />Small Grain 238 229 197 186 210 233 214 <br />Total HU2 7779 7493 6432 6095 6870 7611 6988 <br />Delta Alfalfa 2903 2796 2400 2275 2564 2840 2608 <br />14020004 Corn 194 187 160 152 171 190 174 <br />Pasture 25668 24724 21223 20112 22668 25112 23057 <br />Orchard 2475 2384 2046 1939 2186 2421 2223 <br />Small Grain 728 701 602 570 643 712 654 <br />Tree Farm 47 45 39 37 42 46 42 <br />Vegetables 3 3 2 2 3 3 3 <br />Total HU4 32018 30840 26474 25088 28276 31325 28761 <br />Delta Alfalfa 6211 5982 5136 4867 5485 6077 5579 <br />14020005 Beans 990 954 819 776 874 969 889 <br />Corn 6220 5991 5143 4874 5493 6085 5587 <br />Pasture 16964 16340 14027 13292 14981 16597 15238 <br />Orchard 2870 2764 2373 2249 2535 2808 2578 <br />Small Grain 1979 1906 1636 1551 1748 1936 1778 <br />Tree Farm 180 173 149 141 159 176 162 <br />Vegetables 1058 1019 875 829 934 1035 950 <br />Total HU5 36472 35130 30157 28578 32209 35683 32762 <br />Delta Alfalfa 624 601 516 489 551 610 561 <br />14020006 Beans 1055 1016 872 827 932 1032 948 <br />Corn 1618 1558 1338 1268 1429 1583 1453 <br />Pasture 666 641 551 522 588 652 598 <br />Orchard 54 52 45 42 48 53 49 <br />Small Grain 143 138 118 112 126 140 128 <br />Vegetables 642 618 531 503 567 628 577 <br />17 <br />A 275 01.09.95 1.14-19 Al-azzawe <br />
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