Different types of meteorological drought and their impact on agriculture in Central China
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Different types of meteorological drought and their impact on agriculture in Central China. / Sun, Huaiwei; Sun, Xunlai; Chen, Jianing; Deng, Xiaoya; Yang, Yong; Qin, Hui; Chen, Fulong; Zhang, Wenxin.
In: Journal of Hydrology, Vol. 627, No. Part B, 130423, 2023.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Different types of meteorological drought and their impact on agriculture in Central China
AU - Sun, Huaiwei
AU - Sun, Xunlai
AU - Chen, Jianing
AU - Deng, Xiaoya
AU - Yang, Yong
AU - Qin, Hui
AU - Chen, Fulong
AU - Zhang, Wenxin
N1 - Publisher Copyright: © 2023 Elsevier B.V.
PY - 2023
Y1 - 2023
N2 - Challenges in drought monitoring hinder social development. In this study, a robust drought monitoring framework composed of ten indicators was established based on the standard precipitation actual evapotranspiration (SPAEI) index calculated using the maximum entropy production (MEP) model. Additionally, the relationship between meteorological drought and agricultural development was analyzed. The results indicated that the seasonal SPAEI performed better than the standardized precipitation evapotranspiration index (SPEI) in terms of drought area, vegetation drought, and drought identification in Central China. The annual drought duration was between 3.4 and 4.5 months, and the annual drought frequency ranged from 1.1 to 1.9 times per year. The main drought pattern was divided into persistent light drought and short-term severe drought, with the latter dominating crop yields in Central China. Although persistent light drought contributes more to drought, short-term severe drought has a greater impact on crop yields. Thoroughly investigating regional drought patterns and assessing their impacts on agriculture will contribute to a better understanding of drought characteristics and provide valuable guidance for regional agricultural water resource allocation and management.
AB - Challenges in drought monitoring hinder social development. In this study, a robust drought monitoring framework composed of ten indicators was established based on the standard precipitation actual evapotranspiration (SPAEI) index calculated using the maximum entropy production (MEP) model. Additionally, the relationship between meteorological drought and agricultural development was analyzed. The results indicated that the seasonal SPAEI performed better than the standardized precipitation evapotranspiration index (SPEI) in terms of drought area, vegetation drought, and drought identification in Central China. The annual drought duration was between 3.4 and 4.5 months, and the annual drought frequency ranged from 1.1 to 1.9 times per year. The main drought pattern was divided into persistent light drought and short-term severe drought, with the latter dominating crop yields in Central China. Although persistent light drought contributes more to drought, short-term severe drought has a greater impact on crop yields. Thoroughly investigating regional drought patterns and assessing their impacts on agriculture will contribute to a better understanding of drought characteristics and provide valuable guidance for regional agricultural water resource allocation and management.
KW - Agricultural impact
KW - Drought characteristics
KW - Drought indicators
KW - Drought patterns
KW - The run theory
U2 - 10.1016/j.jhydrol.2023.130423
DO - 10.1016/j.jhydrol.2023.130423
M3 - Journal article
AN - SCOPUS:85177984253
VL - 627
JO - Journal of Hydrology
JF - Journal of Hydrology
SN - 0022-1694
IS - Part B
M1 - 130423
ER -
ID: 380697646