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<br />f\) <br />f.) <br />f,.... <br />(.Ii <br /> <br />Hydrosalinity site monitoring was done on 6 fields <br />ranging in size from 3 acres to 21 acres. Two of these <br />sites were in Delta County and four were in Montrose <br />County. The size of farm ranged from 44 acres to 536 <br />acres. Average field size was 7 acres and average farm <br />size was 204 acres. Oat a collected included inflow and <br />outflow for most irrigations. <br /> <br />A total of 59 irrigation events were monitored in 1995. <br />The results of these irrigation events from 6 sites are <br />shown in Table 2 as the 1995 Annual Summary. Irrigation <br />data from individual sites are available upon request. <br /> <br /> TABLE 2 <br /> LOWER GUNNISON, COLORADO UNIT ~) I <br /> 1995 ANNUAL SUMMARY <br />site irrig. field number vol. of vol. of infilt. -oumulative- ~ >r'" <br />seasonal <br />ID Sys. crops size of inflow outflow depth ppt. ETa DP App <br />Eff <br />(I) Type (Ac) Irrig (In) (In) (In) (In) (In) (I (t) <br />1.8 CDS Beans 21 11. 52.0 14.4 37.6 3.3 19.4 37 <br />20 PGP Orchard 3 8 92.5 52.5 40.0 6.8 24.6 26 <br />23 PGP Onions 3 1.2 81.5 1.7.4 64.1 3.7 16.3 I 20 <br />24 PGS Onions 4 1.2 89.8 26.1 63.7 3.7 15.4 17 <br />25 PGP Corn 4 8 29.1 11.7 1.7.4 6.4 22.6 4J. <br />26 PGS Corn 7 8 25.6 7.8 l7.8 6.4 23.5 55 <br />AVERAGE 7 1.0 61.. 8 21..6 40.1 20.3 27 <br /> <br /> <br />Irrigation system types <br />EOF - Earth ditch to feeder ditch <br />EDS - Earth ditch to siphon tubes <br />PGP - Pipeline to gated pipe <br />PGS - pipeline to gated pipe--Surge <br /> <br />Vol. of Inflow = total depth in inches delivered to the entire field <br />Vol. of Outflow = total depth in inches leaving the field as surface <br />runoff <br />Infilt. Depth = volume of inflow - volume of outflow, or inches of water <br />entering the soil <br />precip. = the measured precipitation from planting date to harvest date <br />ETa = the total actual evapotranspiration from planting date to harvest <br />date <br />DP = deep percolation in average inches over the entire field <br />DP = infiltration depth - soil water deficit at time of irrigation <br />N/A = not available for this report <br />Seasonal app. Eff. = (vol. of inflow - vol. of outflow - DP/ <br />vol. of inflow) x 1.00 <br /> <br />9 <br />