干旱地区农业研究2018，Vol.36Issue(2)：257-264,272,9.DOI:10.7606/j.issn.1000-7601.2018.02.37
中国北方春玉米干旱灾害风险评估
Risk assessment of spring maize drought disaster in Northern China
摘要
Abstract
Drought risk assessment is the necessary way to implement drought risk management and reduce the loss-es and impacts of drought disaster .Moreover ,the key problem of drought risk assessment is how to reveal the characteris-tics of risk factors and their interactions among each other .This article assessed and zoned drought risk for spring maize cultivated in the Northern China ,using the data of yield of spring maize ,meteorological data ,terrain data ,land use data and other relevant data .Based on natural disaster risk theory ,the assessing indices and models of drought risk were es-tablished .According to the exposure degree of hazard-bearing bodies and capability of disaster prevention ,the regional division of drought hazard risk was conducted based on GIS .The results showed that the areas with high and sub-high drought risk included central Inner Mongolia ,Ningxia ,Gansu ,western of Liaoning and part of Xinjiang ,with the value of above 0 .73 .The lower risk area was distributed in the southwestern of Heilongjiang ,central Jilin ,northern of Liaon-ing ,south of Hebei and central Shanxi ,with the value of below 0 .72 .This study is helpful to recognize the relationships among the factors of risk and provide science gist to develop risk management of drought disaster of spring maize in North-ern China .关键词
中国北方/春玉米/灾损/干旱灾害/风险评估Key words
Northern China/spring maize/yield reduction rates/drought disaster/risk assessment分类
农业科技引用本文复制引用
王有恒,张存杰,段居琦,王胜..中国北方春玉米干旱灾害风险评估[J].干旱地区农业研究,2018,36(2):257-264,272,9.基金项目
公益性行业(气象)科研专项重大项目(GYHY201506001) （气象）
公益性行业(气象)科研专项重点项目(GYHY201506019) （气象）
国家重点基础研究发展计划(2012CB955301) （2012CB955301）
