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Impacts of integrated meteorological and agricultural drought on global maize yields

文献类型：期刊论文

作者Wang, Jiao1; Liu, Wenbin2; Yin, Dongqin1
刊名AGRICULTURAL WATER MANAGEMENT
出版日期2025-09-01
卷号318页码:109727
关键词Composite drought indices Maize meteorological yield Copula function Drought impacts
ISSN号0378-3774
DOI10.1016/j.agwat.2025.109727
产权排序2
文献子类Article
英文摘要In agricultural production, drought-related losses significantly impact global food security. Composite drought indices provide superior monitoring of drought conditions compared to single indices; however, research on their effectiveness for monitoring drought in global maize-growing regions remains limited. In this study, we investigated the spatial and temporal variations in drought and its impacts on maize production using the composite agricultural drought index (CADI), which integrates the standardized precipitation evapotranspiration index (SPEI) and the standardized soil moisture index (SSMI) based on the Copula function. The impacts of drought on the meteorological maize yield were quantified across global maize-growing regions from 1981 to 2022. CADI effectively determined the combined effects of meteorological and agricultural drought, demonstrating greater validity and reliability than SPEI or SSMI. From 1981-2022, drought conditions intensified in 72 % of global maize-growing regions, with significant intensification in more than 30 % of these regions. CADI was positively correlated with the meteorological maize yield in approximately 71 % of regions, with significant correlations in 18 % of regions. Positive correlations were also found in 73 % of countries based on national-scale analysis, with significant correlations in 20 % of countries, highlighting the critical impact of drought on yield. Increasing drought sensitivity was observed in 57 % (50 %) of global maize growing regions (countries), indicating the rising impact of drought on yield in these regions. The results suggest that increasing drought under warming may intensify the risk of maize yield decline, providing a scientific foundation for global adaptation strategies to mitigate the adverse effects of environmental stress on agricultural production.
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WOS关键词CROP-YIELD ; UNITED-STATES ; CLIMATE-CHANGE ; SPATIOTEMPORAL PATTERNS ; RISK-ASSESSMENT ; TEMPERATURE ; REGRESSION
WOS研究方向Agriculture ; Water Resources
语种英语
WOS记录号WOS:001578861300001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/217565]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Liu, Wenbin; Yin, Dongqin
作者单位1.China Agr Univ, Coll Land Sci & Technol, State Key Lab Efficient Utilizat Agr Water Resourc, Beijing 100083, Peoples R China;
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jiao,Liu, Wenbin,Yin, Dongqin. Impacts of integrated meteorological and agricultural drought on global maize yields[J]. AGRICULTURAL WATER MANAGEMENT,2025,318:109727.
APA Wang, Jiao,Liu, Wenbin,&Yin, Dongqin.(2025).Impacts of integrated meteorological and agricultural drought on global maize yields.AGRICULTURAL WATER MANAGEMENT,318,109727.
MLA Wang, Jiao,et al."Impacts of integrated meteorological and agricultural drought on global maize yields".AGRICULTURAL WATER MANAGEMENT 318(2025):109727.

入库方式： OAI收割

来源：地理科学与资源研究所

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