水土保持研究2018，Vol.25Issue(2)：228-234,7.
基于ArcGIS的河南省夏玉米旱灾承灾体脆弱性研究
Study on Drought Vulnerability of Summer Maize in He'nan Province Based on ArcGIS
摘要
Abstract
Based on IPCC definition of vulnerability,a risk assessment model of summer maize vulnerability to drought was established from the perspectives of exposure,sensitivity and adaptability by using the data of weather,planting area and yield of summer maize of 23 stations in He'nan Province,and summer maize vulnerability was zoned and analyzed by ArcGIS.The result showed that high and sub high drought vulnerability zones of summer maize were mainly located in west He'nan,northwest of south He'nan and parts of central He'nan,the medium and low zones were mainly located in Nanyang Basin and eastern plain of He'nan.From the three elements of vulnerability,west He'nan belongs to the weak zone.In west He'nan,the drought dangerousness index,sowing ratio of summer maize and environmental sensitivity are higher than those of the whole province,meanwhile,adaptability is relatively weak.Therefore,the region should focus on regional disaster prevention and mitigation investment,optimizing the planting structure.The drought vulnerability index and average relative meteorological yield are significantly correlated after testing,the correlation coefficient is-0.578.The model constructed in this paper can reflect the influence of drought on summer maize production.The results can provide scientific basis for disaster prevention and disaster reduction management.关键词
夏玉米/干旱脆弱性/ArcGIS/河南省Key words
summer maize/drought vulnerability/ArcGIS/He'nan Province分类
农业科技引用本文复制引用
张维诚,许朗..基于ArcGIS的河南省夏玉米旱灾承灾体脆弱性研究[J].水土保持研究,2018,25(2):228-234,7.基金项目
国家自然科学基金(71573126) （71573126）
国家社会科学基金重大项目(13&ZD160) （13&ZD160）
