Abstract:

The increasingly serious problem of water resource crisis directly affects the regional security and the sustainable development of nature,economy and society.Understanding the hydrological space issue based on the water resource regeneration capability,protecting wetlands and rationally allocating wetlands in a basin are the basis for maintaining the healthy terrestrial hydrological cycle.Wetlands,whose irreplaceable functions should not be ignored,are the sustainable space of water regulation.Human activities have led to a large number of wetlands extinction,which,furthermore,obviously weakened hydrological space effects of wetlands and significantly increased the regional flood risk at the meantime.As for the guarantee of watershed water security,wetlands rational allocation is the foundation of vital concernment for solving this problem