Variations in soil moisture content in rangeland catchment
Soil water studies for California rangelands have focused on near-surface hydrologic processes, limiting our understanding of spatial-temporal dynamics of the water regime below the root zone. Soil moisture content and potential were monitored for 16 months in 12 locations in an annual grass dominated 20 ha catchment. The data collected were analyzed by ANOVA to determine significant spatial and temporal differences in soil moisture. Further analysis identified variables that influenced the amount of moisture present at a particular subsurface location. It was determined that there were significant differences in the amount of soil moisture present along the vertical profile of each site and between sites. Soil texture, type of vegetation cover, and elevation were the significant variables that influenced the soil moisture status.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director, Office of Science (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 839187
- Report Number(s):
- LBNL-50333; JRMGAQ; R&D Project: 465103; TRN: US200509%%307
- Journal Information:
- Journal of Range Management, Vol. 54, Issue 1; Other Information: Journal Publication Date: January 2001; PBD: 2 Jan 2000; ISSN 0022-409X
- Country of Publication:
- United States
- Language:
- English
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