基于对浙江“2011.6.20”大水调查,从水情、灾情,以及大水期间的应急响应等方面,分析了区域干旱的水文情势下,洪涝急转的成灾机理,总结了本次大水减灾应急中的得失利弊,据此提出了现代防洪形势下,减灾策略继续完善的若干方向。 Based on the investigation of Zhejiang “2011.6.20” floods, the disastrous flood disaster mechanism was analyzed from the aspects of water regime, disaster and emergency response during the flood period. The pros and cons of sub-flood mitigation and emergency response are analyzed. Based on the above, some suggestions are put forward to improve the disaster mitigation strategy under the current situation of flood control.