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Data Series 340

U.S. GEOLOGICAL SURVEY
Data Series 340

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Table 1. Estimated application rates for high-water-use crops by hydrographic area from the original database and revised application rates developed for the updated database, Death Valley regional ground-water flow system, Nevada and California.

[Application rate: Calculated using equation 2 in text. Most likely application rate determined using crop coefficient = 1.0 and irrigation efficiency = 0.75 (except HA 162 = 0.65). Original database: Potential ET estimated from Shevenell (1996). Updated database: Potential ET estimated from Flint and Flint (2007). Abbreviations: ET, evapotranspiration; ft/yr, foot per year]

Hydrographic area   Original database(Moreo and others, 2003)   Updated database(This report)
ET (ft/yr) Application rate (ft/yr) ET (ft/yr) Application rate (ft/yr)
Number Name Potential Crop Minimum Likely Maximum Potential Crop Minimum Likely Maximum
162 Pahrump Valley 6.4 5.9 5 9 14 5.0 5.0 5 7.5 10
170 Penoyer Valley 3.8 3.5 3 5 7 3.8 3.8 4 5 6
230 Amargosa Desert 6.4 5.9 5 8 12 5.1 5.1 5 7 9

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