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Evapotranspiration from bare, herbaceous, and aspen plots: A check on a former study
Author(s) -
Johnston Robert S.
Publication year - 1970
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr006i001p00324
Subject(s) - evapotranspiration , herbaceous plant , environmental science , water content , hydrology (agriculture) , neutron probe , moisture , soil water , agronomy , soil science , geology , geography , ecology , neutron , meteorology , biology , neutron cross section , physics , geotechnical engineering , quantum mechanics , neutron temperature
Soil moisture depletion was measured and evapotranspiration estimated on high elevation plots with three cover conditions: bare, herbaceous, and aspen‐herbaceous. Neutron moisture measurements were taken to a depth of 9 feet. The 4‐year average annual evapotranspiration losses were 11.28, 15.27, and 21.00 inches from the bare, herbaceous, and aspen‐herbaceous plots, respectively. Summer rainfall varied from 1.13 to 10.43 inches during this study. Soil moisture depletion to a depth of 6 feet and estimated evapotranspiration on these plots were reported by Croft and Monninger [1953]. The results of this present study substantiate the earlier report concerning the comparative water savings to be realized by vegetative manipulation. They show that removing deep rooted aspen can reduce the average evapotranspiration by about 6 inches per year from a 9‐foot profile.