| Abstract: | Estimates of evapotranspiration from an area of forage grass, which had been planted to replace native vegetation of little economic value, were made daily for a 363-day period in 1969 and 1970. The measurement site was located in the Gila River valley in east-central Arizona. The forage, panigrass (Panicum antidotale Retz.), grew from seed during the early summer of 1969 and after winterkill, regrew in 1970. Daily evapotranspiration estimates, which were based on energy budget measurements, ranged from a maximum of 9.2 millimeters to small amounts of condensation. Two daily values of substantial condensation (0.9 and 0.4 millimeter) were of dubious quality, but were retained in the record. The annual evapotranspiration was 989 millimeters, of which about 332 millimeters came from precipitation at the site. The water table fluctuated between 210 and 280 centimeters below land surface. However, the measurement site was near a wash, so that undocumented, shallower subterranean flows may have occurred. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 19823 |
| Citation Author: | Leppanen, O. E. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | v, 43 p. ill., map ;28 cm. |
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| Citation Publisher: | U.S Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 81-1018 |
| Citation Search Results Text: | Evapotranspiration from forage grass replacing native vegetation in the Gila River valley of Arizona; 1981; OFR; 81-1018; Leppanen, O. E. |
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| Citation Year: | 1981 |
| Type: | citation/reference |
| Text: | Evapotranspiration from forage grass replacing native vegetation in the Gila River valley of Arizona; 1981; OFR; 81-1018; Leppanen, O. E. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1981/1018/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1981/1018/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S Geological Survey, |
