干旱区生态环境知识资源中心(Arid): Global vulnerability to agricultural drought and its spatial characteristics

Arid

	Global vulnerability to agricultural drought and its spatial characteristics
	Wu Jianjun; Geng Guangpo; Zhou Hongkui; Liu Jinghui; Wang Qianfeng; Yang Jianhua
来源期刊	Science China. Earth Sciences
ISSN	1674-7313
出版年	2017
卷号	60 期号:5 页码:910-920
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 0.5° 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.
英文关键词	Drought Vulnerability Agriculture Spatial distribution Globe
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:5967615
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335785
作者单位	Wu Jianjun, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Geng Guangpo, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Zhou Hongkui, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Yang Jianhua, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Liu Jinghui, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.; Wang Qianfeng, ...
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],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.