Global vulnerability to agricultural drought and its spatial characteristics

doi:10.1007/s11430-016-9018-2

	Global vulnerability to agricultural drought and its spatial characteristics
	Wu JianJun 1,2,3,4; Geng GuangPo 1,2,3,4; Zhou HongKui 1,2,3,4; Liu JingHui 5; Wang QianFeng 6; Yang JianHua 1,2,3,4
刊名	SCIENCE CHINA-EARTH SCIENCES
	2017-05-01
卷号	60 期号:5 页码:910-920
关键词	Drought Vulnerability Agriculture Spatial distribution Globe
ISSN号	1674-7313
DOI	10.1007/s11430-016-9018-2
通讯作者	Wu JianJun(jjwu@bnu.edu.cn)
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[41671424] ; Fundamental Research Funds for the Central Universities
WOS关键词	RISK-ASSESSMENT ; CLIMATE-CHANGE ; QUANTITATIVE ASSESSMENT ; HAZARD ASSESSMENT ; CROP-YIELD ; CHINA ; PATTERNS ; WATER ; SIMULATIONS ; IRRIGATION
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000400551600007
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/62603]
专题	中国科学院地理科学与资源研究所
通讯作者	Wu JianJun
作者单位	1.Beijing Normal Univ, Key Lab Environm Change & Nat Disaster, Minist Educ, Beijing 100875, Peoples R China 2.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 3.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China 4.Beijing Normal Univ, Ctr Drought & Risk Res, Beijing 100875, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 6.Fuzhou Univ, Coll Environm & Resources, Fuzhou 350116, Peoples R China
推荐引用方式 GB/T 7714	Wu JianJun,Geng GuangPo,Zhou HongKui,et al. Global vulnerability to agricultural drought and its spatial characteristics[J]. SCIENCE CHINA-EARTH SCIENCES,2017,60(5):910-920.
APA	Wu JianJun,Geng GuangPo,Zhou HongKui,Liu JingHui,Wang QianFeng,&Yang JianHua.(2017).Global vulnerability to agricultural drought and its spatial characteristics.SCIENCE CHINA-EARTH SCIENCES,60(5),910-920.
MLA	Wu JianJun,et al."Global vulnerability to agricultural drought and its spatial characteristics".SCIENCE CHINA-EARTH SCIENCES 60.5(2017):910-920.