DOI: 10.1007/s11069-021-04680-2
论文题名: Drought disaster risk management based on optimal allocation of water resources
作者: Liu X. ; Guo P. ; Tan Q. ; Zhang F. ; Huang Y. ; Wang Y.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 108, 期: 1 起始页码: 285
结束页码: 308
语种: 英语
中文关键词: Drought risk disaster assessment
; Drought risk disaster management
; Grain yield
; Stochastic method
英文摘要: Abstract: Drought risk management has gradually emerged as an important discipline and the traditional negative drought management changes to active drought management. Drought risk assessment and control are the core of drought risk management. In this study, based on precipitation anomaly (Pa) and soil moisture content anomaly index, the stochastic drought index model was established to calculate the drought distribution under different probability. Considering risk of disaster (H), vulnerability of the environment (S), exposure of the disaster bearing body (V), and disaster prevention and mitigation capability (C), a water resource optimization allocation model based on drought disaster risk assessment model was established to minimize the regional drought disaster risk. The developed models were used in Heilongjiang Province, China, and the results showed that: (1) the drought indexes based on the stochastic method can reflect the regional drought under different probabilities, providing managers with comprehensive drought information to manage the disaster; (2) the optimal allocation of water resources can reduce the risk of drought disaster in drought-prone months and drought-prone areas; and (3) studying drought risk assessment and regulation considering grain yield can be used to effectively understand and alleviate drought effects in the study area, reduce farmers' economic losses and ensure local food security. Graphic abstract: [Figure not available: see fulltext.]. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169176
Appears in Collections: 气候变化与战略
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作者单位: Centre for Agricultural Water Research in China, China Agricultural University, Beijing, 100083, China; Heilongjiang Province Hydraulic Research Institute, Harbin, 150080, China
Recommended Citation:
Liu X.,Guo P.,Tan Q.,et al. Drought disaster risk management based on optimal allocation of water resources[J]. Natural Hazards,2021-01-01,108(1)