globalvulnerabilitytoagriculturaldroughtanditsspatialcharacteristics

	globalvulnerabilitytoagriculturaldroughtanditsspatialcharacteristics
	Wu Jianjun 2; Geng Guangpo 2; Zhou Hongkui 2; Liu Jinghui 3; Wang Qianfeng 1; Yang Jianhua 2
刊名	sciencechinaearthsciences
	2017
卷号	60 期号:5 页码:910
ISSN号	1674-7313
英文摘要	As an important part of agricultural drought risk, agricultural drought vulnerability helps effectively prevent and alleviate drought impacts by quantifying the vulnerability as well as identifying its spatial distribution characteristics. In this study, global agricultural cultivation regions were chosen as the study area; six main crops (wheat, maize, rice, barley, soybean, sorghum) were selected as the hazard-affected body of agricultural drought. Then, global vulnerability to agricultural drought was assessed at a 0.5A degrees resolution and finally, its distribution characteristics were revealed. The results indicated that the area percentages of different grades of global vulnerability to agricultural drought from low to very high were 38.96%, 28.41%, 25.37%, and 7.26%, respectively. This means that the total area percentage of high and very high vulnerability zones exceeded 30% of the study area. Although high and very high vulnerability zones were mainly distributed in arid and semi-arid regions, approximately 40% of those above were distributed in humid and semi-humid regions. In addition, only about 15% of the population in this study was located in the high vulnerability regions. Among the vulnerability factors, water deficit during the growing season and the irrigation area ratio are the key factors affecting regional vulnerability. Therefore, the vulnerability could be reduced by adjusting crop planting dates and structures as well as by improving irrigation level and capacity.
资助项目	[National Natural Science Foundation of China] ; [Fundamental Research Funds for the Central Universities]
语种	英语
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/119091]
专题	中国科学院地理科学与资源研究所
作者单位	1.福州大学 2.北京师范大学 3.中国科学院地理科学与资源研究所
推荐引用方式 GB/T 7714	Wu Jianjun,Geng Guangpo,Zhou Hongkui,et al. globalvulnerabilitytoagriculturaldroughtanditsspatialcharacteristics[J]. sciencechinaearthsciences,2017,60(5):910.
APA	Wu Jianjun,Geng Guangpo,Zhou Hongkui,Liu Jinghui,Wang Qianfeng,&Yang Jianhua.(2017).globalvulnerabilitytoagriculturaldroughtanditsspatialcharacteristics.sciencechinaearthsciences,60(5),910.
MLA	Wu Jianjun,et al."globalvulnerabilitytoagriculturaldroughtanditsspatialcharacteristics".sciencechinaearthsciences 60.5(2017):910.