A METHOD OF RISK RESPONSE TO DROUGHT BASED ON THREE-LAYER RISK ASSESSMENT

摘要

The invention discloses a three-layer risk assessment drought disaster risk coping method. The method includes the following steps that: regulatable feature and regulation approach analysis is performed on drought disaster risk factors from the four aspects of dangerousness, exposure degree, vulnerability and disaster prevention and mitigation capability involved in a drought formation process; a drought disaster one-layer risk assessment system is established; a drought disaster two-layer risk assessment system is established; a drought disaster three-layer risk assessment system is established; and drought risk coping strategies are put forward. Based on historical evolution rules and future evolution trends of drought disasters, the drought disaster risk coping method is established according to drought disaster risk region division and risk prediction results from aspects such as urban population size, regional water resource carrying capacity, industrial structure adjustment, water conservancy project group optimized layout, disaster prevention and mitigation capacity construction, soil and water resource regulation and risk prevention and control management. With the method adopted, regional drought risks can be lowered level by level.