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Explanation and Use of the Blaney-Criddle Water Balance Model I <br />July 28, 1998 <br />Page 3 <br />The following is a reproduction of the water consumption data entry area: <br />Bermuda and Rye grass consumptive use <br />calculation: <br /> <br /> K Value Monthly % <br />daytime hours of <br />the year Mean monthly <br />temperature (F) <br />Janua 0.65 7.10 51.3 <br />Februa 0.70 6.91 55.1 <br />March 0.75 8.35 59.8 <br />A ril 0.75 8.80 68.0 <br />Ma 0.74 9.71 76.5 <br />June 1.06 9.71 85.2 <br />Jul 1.17 9.88 91.4 <br />Au ust 1.10 9.34 89.3 <br />Se tember 0.90 8.35 83.9 <br />October 0.80 7.90 72.7 <br />November 0.75 7.02 60.3 <br />December 0.70 6.93 52.6 <br />The model has been designed to include water usage for the more common tree species planted in <br />Arizona. Information on tree water consumption is entered into a third part of the spreadsheet <br />located on the top right side. The program user enters the total number of each tree species being <br />planted. The program calculates the total usage by species and total monthly usage by all of the <br />trees. The following is a reproduction of the tree water consumption data input block: <br />Tree consumptive use calculation: <br /> Number of uees in <br />project area: Gallons per day <br />used per tree: Total consumptive <br />usage per day: <br />Cottonwood 0 400 0 <br />Fan alm 0 40 0 <br />Oleander 0 10 0 <br />Eucalyptus Q not currently <br />available 0 <br />Pine 0 50 0 <br />Olive 0 130 0 <br />Misc. 0 50 0 <br />Desert 0 50 0 <br />Rhus 0 20 0 <br />Totals: 0 0