Research of the Mean Annual Water Balance during 1980-2013 in Chaobai River Basin
In order to study the responses of water balance components to different land cover characteristics in long-term average scale in Chaobai River Basin,the data of precipitation,streamflow and evaportranspiration from 1980 to 2013 were adopted to calibrate a coupled water and heat balance model.Moreover,the change of the streamflow was predicated based on the reasonable forecasting of the underlying surface in the next ten years.The results showed that the model was applicative very well in Chaohe and Baihe river basins.On the basis of the existing underlying surface information,11 situations of the change of the underlying in the future is predicted respectively by use of both data of the forest land area and the underlying surface parameters of grass watershed.The stremflow in the future was predicated based on the 11 situations respectively.The results showed that the streamflow ranges from 26.47 mm to 53.55 mm in Chaohe River Basin and the streamflow ranges from 17.57 mm to 41.53 mm in Baihe River Basin.The innovation of this work is predicting the streamflow based on the predicting of underlying surface in the future.It is of great significance for the study of water resources and formulating the water managements.
evapotranspirationstreamflowwater balanceChaobai River Basin
NETL
NSTL
万方数据
