作　　者： ; ; ; ; ;

机构地区： 新疆大学资源与环境科学学院

出　　处： 《安徽农业科学》 2014年第17期5455-5458,5523,共5页

摘　　要： 随着农业旱灾对农业系统造成的损失日益加剧,增大了对区域资源的压力,造成一系列环境问题,农业干旱风险分析逐渐成为近年一个新的研究领域;这一研究不仅是农业旱灾风险管理的基础和前提,也是农业干旱风险区划和灾前损失预评估的理论基础。目前,针对农业干旱风险的研究大多是通过模拟特定干旱指标与作物生物量之间的关系,对作物因旱损失进行微观风险评价,因此在阅读大量文献的基础上,分别对农业干旱、农业干旱风险的定义,以及对基于降水指数的农业干旱风险的研究进展进行了综述。 The loss aggravating of agrieuhural drought to agricultural system increased the pressm＇e on regional resources, and resulted in a range of envinmmental problems, so the analysis of agricultural drought risk has become a new research focus in recent years. The analysis of agricultural drought risk is not only the prerequisite of drought risk management, but also the theoretical basis of risk division and of the damages. Toclay, study on agricultural drought risk is mostly by stimulated the relationship between the special drought index and crop biomass to make the micro assessment of crop loses due to drought. Based on literature reading, this paper will systematically explain the definition of agricultural drought, agricuhoral drought risk, and summarize the research progress of agricultural drought risk based on the precipitation index.

关 键 词： 农业干旱 干旱风险 降水指数

领　　域： [农业科学]