CS34 River Dynamics
Date: Wednesday, June 12, 2002
Location: Poster Session - VCC
 
DanaGL, Desert Research Institute, Reno, Nevada, USA, gdana@dri.edu
Brock, J, T, Desert Research Institute, Reno, Nevada, USA, jbrock@dri.edu
Stanley, J, T, Desert Research Institute, Reno, Nevada, USA, jstanley@dri.edu
 
INFLUENCE OF RIPARIAN VEGETATION ON LOCAL CLIMATE AND RIVER TEMPERATURE
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Prior to the arrival of Euro-Americans in the mid 1800s, the Lower Truckee River, Nevada, had an extensive riparian vegetation community dominated by cottonwoods (Populus) and willows (Salix). The riparian vegetation was reduced substantially over the past century due to human activities including water diversions, flow manipulation, channelization, agriculture, grazing, and other land uses. Riparian restoration is an integral component in water quality management scenarios for the Lower Truckee River currently being evaluated using watershed and ecological models. Accurate simulation of river temperature is important in these models because of its influence on numerous processes and the distribution of aquatic biota. Presently, meteorological data used to drive the models comes from the Reno urban area, a climate potentially different from the Lower Truckee River. We measured meteorological conditions along the Lower Truckee River to assess the influence of riparian vegetation on local climate and river temperature. Measurements were made for a one month period within four vegetation types typical of the Lower Truckee River: cottonwood forest, open field, open river channel, and bank vegetation adjacent to the channel.