Conclusion
Based on the catchment ecohydrological model developed by Eagleson, from the water balance
analysis for the vegetation growing season, the allocation of evpotranspiration flux among canopy
transpiration, surface interception, and bare soil evaporation is analyzed. The relationship between the
mean seasonal vegetation coverage and the soil moisture content derived through the Eagleson’s water
balance analysis could be used for predicting the change of vegetation coverage due to the climate
variability and human activity through the change in soil moisture. Coupling the Budyko’s water-energy
balance model and the Eagleson’s ecohydrological model, a combined model was developed and
validated to be useful for predicting the impact of climate and vegetation variability on the catchment
water balance.
Acknowledgement: