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Estimating the contribution of forests to the Nation's water supply

Status: 
Complete
Dates: 
December, 1990

Mean annual evapotranspiration for the period 1953-1994 (Brown et al. 2008).
Mean annual evapotranspiration for the period 1953-1994 (Brown et al. 2008).
This project seeks to estimate the volumes of water that annually become available on forests (and other land covers) in the U.S. Available water volume (water supply) is being estimated, at the regional scale, as precipitation minus evapotranspiration (ET).

Estimating ET at the regional scale for the entire U.S. has been a major hurdle and is being accomplished in cooperation with scientists at Colorado State University. The publications listed below describe our efforts so far to estimate regional ET.

Mean annual contributions to water supply have been estimated for three sets of areas of the coterminous U.S.:

The other goal is to estimate the value of runoff from national forest areas (see Brown 2004). Work continues toward this goal.



National Strategic Program Areas: 
Water, Air, and Soil
National Priority Research Areas: 
Watershed Management and Restoration
RMRS Science Program Areas: 
Human Dimensions
RMRS Strategic Priorities: 
Water & Watersheds
Geography: 
National
Project Contact: 

Principal Investigators: