Randy Mayer and Bradford Wilcox TX A&M University Department of Rangeland Ecology and Management. Streamflow Characteristics of Individual Watersheds on the Edwards Plateau Eco-hydrology of Karst Shrublands. Climate: precipitation, 375-800mm
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Randy Mayer and Bradford Wilcox
TX A&M University
Department of Rangeland Ecology and Management
temperature, 18-20 degrees C
with large areas exposed
by fractured limestone
* Rivers 100% appropriated
Period of record
Period of record (1916-2000)
PreliminaryAnalysis of Vegetation, Patch Analyst
2% increase in shrub density
Juniper influence on hydrologic cycle
Soil or runoff
* Juniper interception is significant for small events, but has less influence on larger events
* Keith Owens, TX A&M
Research Center (Uvalde)
Precipitation events (in.)
It appears that the runoff necessary to fill reservoirs on the Edwards Plateau is generated by large precipitation events.
Surface cover has less influence on these large events than the small events.
While there are many benefits to shrub control in the North Llano basin, increasing regional water yield does not appear to be one of them.