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<br /> <br /> Table 12 LZ9~ <br /> LOWER ~IAIN STEM STUDY AREA <br /> Per-acre Per-acre 11 Adjustment from 21 Direct per-acre <br /> Crops and area Acres Percent gross net $16/acre effect- salinity effect <br /> value value Imperial area cost <br /> Colorado River Indian <br /> Reservation <br /> Field crops 72,000 100 ,#$ 210.00 $ 95 $ 95/132 = 0.72 $11 <br /> Yuma Project <br /> Field crops 48,107 70 41 211.94 95 95/132 = 0.72 12 <br />'" Fruits 2,745 4 41 ' 322.58 145 145/132 = 1.10 18 <br />00 Seeds 4,584 7 4; 415.92 187 187/132 1.42 23 <br /> = <br /> Vegetables 13,135 19 Y 1,225.15 551 551/132 = 4.18 67 <br /> Total, or weighted <br /> average 68,571 100 $ 424.09 $191 $191/132 = 1.45 $23 <br /> <br />11 Net value computed on basis fixed and variable costs of production will approximate 55 percent of gross value. <br />21 Base value $16/acre salinity effect Imperial Valley, Sun, Po-Chuan (1972). "An Economic Analyses of the <br />Effects of Quantity and Quality of Irrigation Water on Agricultural Production in Imperial Valley, California." <br />Ph.D. dissertation, University of California, Davis. <br />31 Gross value based on gross crop value of Yuma Project with similar cropping pattern. <br />Y Bureau of Reclamation annual crop report. <br />