7IPCC. Climate change 2007 : synthesis report: an assess- ment of the intergovernmental panel on climate change [ R~. UK: Cambridge University Press ,2007.
8WMO. Water resources and climatic change: sensitivity of water resources system to climate change and varia- bility[M].Geneva :WMO, 1987.
9Jia Q Y, Sun F H. Modeling and forecasting process u- sing the HBV model in Liao river delta [ J J. Procedia Environmental Sciences ,2012 ( 13 ) : 122 - 128.