干旱演变驱动机制理论框架及其关键问题  

Theoretical framework of drought evolution driving mechanism and the key problems

作　　者：裴源生[1] 蒋桂芹[1] 翟家齐[1] 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038

出　　处：《水科学进展》2013年第3期449-456,共8页Advances in Water Science

基　　金：国家重点基础研究发展计划(973计划)资助项目(2010CB951102);"十二五"国家科技支撑计划资助项目(2012BAC19B03)~~

摘　　要：干旱演变驱动机制是科学认识干旱问题和制定有效防旱抗旱政策的理论基础。针对气象干旱、水文干旱和农业干旱3种干旱类型,分别分析了其形成过程,并阐述了其之间的关系;采用"驱动力-压力-状态-响应"模式构建了干旱演变驱动机制总体研究框架,并探讨了干旱演变驱动力系统构成、干旱演变驱动机制、变化环境下干旱演变规律及其响应等关键科学问题。Driving mechanism of drought is the theoretical basis of understanding drought,both scientifically and for making effective drought-resisting policy.The forming processes of meteorological drought,hydrological drought and agricultural drought and the relationship among them are analyzed.A theoretical framework of the driving mechanism for drought evolution is established by adopting the ＂driving force-pressure-state-response＂ model.Key problems such as the principle factors of drought evolution,the driving mechanism of drought evolution,the methods of analyzing evolution rule and response of drought under changing environment are discussed.

关 键 词：气象干旱 水文干旱 农业干旱 形成过程 驱动机制 

分 类 号：P339[天文地球—水文科学]