Portable chamber measurements of evapotranspiration at the Amargosa Desert Research Site near Beatty, Nye County, Nevada, 2003-06
Scientific Investigations Report
2008-5135
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Abstract
Portable chamber measurements of evapotranspiration (ET) were made at the U.S. Geological Survey's Amargosa Desert Research Site in southern Nevada to help quantify component- and landscape-scale contributions to ET in an arid environment. Evapotranspiration data were collected approximately every 3 months from 2003 to 2006. Chamber measurements of ET were partitioned into bare-soil evaporation and mixed-species transpiration components. The component-scale ET fluxes from native shrubs typically surpassed those from bare soil by as much as a factor of four. Component-scale ET fluxes were extrapolated to landscape-scale ET using a one-layer, multi-component canopy model. Landscape-scale ET fluxes predominantly were controlled by bare-soil evaporation. Bare soil covered 94 percent of the landscape on average and contributed about 70 percent of the landscape-scale vapor flux. Creosote bush, an evergreen shrub, accounted for about 90 percent of transpiration on average due to its dominance across the landscape (80 percent of the 6 percent shrub cover) and evergreen character.
Suggested Citation
Garcia, C.A., Johnson, M.J., Andraski, B.J., Halford, K.J., Mayers, C.J., 2008, Portable chamber measurements of evapotranspiration at the Amargosa Desert Research Site near Beatty, Nye County, Nevada, 2003-06: U.S. Geological Survey Scientific Investigations Report 2008-5135, iv, 11 p., https://doi.org/10.3133/sir20085135.
ISSN: 2328-0328 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Portable chamber measurements of evapotranspiration at the Amargosa Desert Research Site near Beatty, Nye County, Nevada, 2003-06 |
| Series title | Scientific Investigations Report |
| Series number | 2008-5135 |
| DOI | 10.3133/sir20085135 |
| Year Published | 2008 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Nevada Water Science Center, Toxic Substances Hydrology Program |
| Description | iv, 11 p. |
| Time Range Start | 2003-01-01 |
| Time Range End | 2006-12-31 |
| Country | United States |
| State | Nevada |
| County | Nye County |
| City | Beatty |
| Other Geospatial | Amargosa Desert Research Site |
| Additional Online Files (Y/N) | Y |