气候变化对中国水资源的影响

Effecf of the Climatic Change on Water Resource in China

综述了气候变化对我国水资源的影响。气候变化会引起水循环的改变,而水循环的改变将可能影响各种灾害天气时间的长短、频率、损失以及水资源的可利用率;气候变暖可能使北方江河径流量减少,南方径流量增大,导致旱涝灾害出现频率增加,并加剧水资源的不稳定性与供需矛盾。

The effects of climate change on water resources in China were reviewed,including water cycle,runoff, evaporation and water supply and demand.The climate change would cause the changes of water cycle .The climate shift could induce the cbenges of water cycle,while the change of water cycle may influence the time course, frequency and the damage of various weather disasters,and also affect the viability ratio of water source. The climatic warm- hag would reduce the river runoff in the northern areas, while increase it in the southern areas. Meanwhile, the frequency of flooding and drought disasters would be enhanced and the instability and imbalance of the supply and demand of water would be more serious.