Evapotranspiration From A Bulrush-D

摘要

Growing-season evapotranspiration and surface ener- gy and water balances were investigated for an extensive, bulrush- dominated wetland in the Upper Klamath National Wildlife Refuge of south-central Oregon, a semi-arid region with competing demands for scarce water resources. Turbulent fluxes of sensible and latent heat were measured by eddy covariance for 1.2 to 1.9 days during each off our site visits during late-May to mid-October 1997. Mean daytime latent heat flux and the Bowen ratio ranged from 148 to 178 W m~-2 and from 0.38 to 0.51, respectively, during late May, mid-July, and late August site visits.