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Agricultural Drought Risk Assessment in Southwest China

文献类型：期刊论文

作者Zeng, Zhaoqi2,3; Wu, Wenxiang3,4; Li, Zhaolei3; Zhou, Yang3; Guo, Yahui5; Huang, Han1
刊名WATER
出版日期2019-05-01
卷号11期号:5页码:20
关键词Standardized Precipitation Evapotranspiration Index (SPEI) assessment agricultural drought risk Southwest China
ISSN号2073-4441
DOI10.3390/w11051064
通讯作者Wu, Wenxiang(wuwx@igsnrr.ac.cn)
英文摘要Drought disasters jeopardize agricultural production and are expected to become more serious in the context of global climate change. However, in China, little attention has been paid to evaluating agricultural drought risk in humid areas (such as in Southwest China), which have also been affected by severe drought in recent years. In this work, we used the Standardized Precipitation Evapotranspiration Index (SPEI), which was computed from high-quality monthly precipitation and temperature data from 92 rain-gauge stations across Southwest China, to study the drought characteristics (e.g., intensity, duration, and frequency) and their decadal variations from 1960 to 2017. Furthermore, we applied a widely accepted conceptual model that emphasizes the combined role of drought hazard (calculated by the intensity and frequency of drought) and agricultural drought vulnerability (integrated with high-resolution soil properties, climate, topography, irrigation, and gross domestic product) to conduct a spatial assessment of agricultural drought risk at a 1-km grid scale. The results revealed that drought has become more serious and frequent in Southwest China, especially since the 2000s. About 27.4% of the agricultural area has been exposed to an extremely high risk of drought, 33.5% to a high risk, 22.5% to a moderate risk, and 16.6% to a low risk. The extreme agricultural risk areas were located mainly in northeastern and southeastern Chongqing, southwestern Sichuan, northeastern and eastern Guizhou, and central and eastern Yunnan. Our findings highlighted that more attention should be paid to the agricultural drought risk in humid regions of China. Furthermore, this work could set the stage for policy makers and practitioners to take measures to reduce the agricultural drought risk in Southwest China.
WOS关键词CLIMATE-CHANGE ; GLOBAL DROUGHT ; RIVER-BASIN ; VULNERABILITY ; INDEX ; PRECIPITATION ; ADAPTATION ; HAZARD ; MODEL
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040304] ; National Key Research and Development Program of China[2016YFA0602402] ; Postdoctoral Science Foundation of China[2018M641459]
WOS研究方向Water Resources
语种英语
WOS记录号WOS:000472680400194
出版者MDPI
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; Postdoctoral Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/58641]  
专题中国科学院地理科学与资源研究所
通讯作者Wu, Wenxiang
作者单位1.China Univ Geosci, Sch Land Sci & Technol, Beijing 100083, Peoples R China
2.Univ Chinese Acad Sci, Dept Environm & Resources, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
5.Beijing Normal Univ, Coll Water Sci, Beijing Key Lab Urban Hydrol Cycle & Sponge City, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Zhaoqi,Wu, Wenxiang,Li, Zhaolei,et al. Agricultural Drought Risk Assessment in Southwest China[J]. WATER,2019,11(5):20.
APA Zeng, Zhaoqi,Wu, Wenxiang,Li, Zhaolei,Zhou, Yang,Guo, Yahui,&Huang, Han.(2019).Agricultural Drought Risk Assessment in Southwest China.WATER,11(5),20.
MLA Zeng, Zhaoqi,et al."Agricultural Drought Risk Assessment in Southwest China".WATER 11.5(2019):20.

入库方式： OAI收割

来源：地理科学与资源研究所

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