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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 and Zhang, Wenxin LU orcid (2023) In Journal of Hydrology 627.
Abstract

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... (More)

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.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Agricultural impact, Drought characteristics, Drought indicators, Drought patterns, The run theory
in
Journal of Hydrology
volume
627
article number
130423
publisher
Elsevier
external identifiers
  • scopus:85177984253
ISSN
0022-1694
DOI
10.1016/j.jhydrol.2023.130423
language
English
LU publication?
yes
additional info
Funding Information: This study was primarily funded by the Third Xinjiang Scientific Expedition Program (Grant No. 2022xjkk0105 ) (H.S.). The authors acknowledge funding from the NSFC project ( 52079055 , 52011530128 ). H.S. and W.Z. acknowledge funding from the NSFC-STINT project (No. 202100-3211 ). This study is also supported by 'the Fundamental Research Funds for the Central Universities' (HUST: 2022JYCXJJ023 ). Publisher Copyright: © 2023 Elsevier B.V.
id
7715688b-411b-46b1-a5b5-3060dd8a4cf3
date added to LUP
2023-12-08 10:33:47
date last changed
2023-12-15 09:13:37
@article{7715688b-411b-46b1-a5b5-3060dd8a4cf3,
  abstract     = {{<p>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.</p>}},
  author       = {{Sun, Huaiwei and Sun, Xunlai and Chen, Jianing and Deng, Xiaoya and Yang, Yong and Qin, Hui and Chen, Fulong and Zhang, Wenxin}},
  issn         = {{0022-1694}},
  keywords     = {{Agricultural impact; Drought characteristics; Drought indicators; Drought patterns; The run theory}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Hydrology}},
  title        = {{Different types of meteorological drought and their impact on agriculture in Central China}},
  url          = {{http://dx.doi.org/10.1016/j.jhydrol.2023.130423}},
  doi          = {{10.1016/j.jhydrol.2023.130423}},
  volume       = {{627}},
  year         = {{2023}},
}