Spatiotemporal Heterogeneity of Long-Term Irrigation Effects on Drought in China’s Arid and Humid Regions DOI Creative Commons

Enyu Du,

Fang Chen, Huicong Jia

et al.

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(7), P. 1115 - 1115

Published: March 21, 2025

Analyzing the spatiotemporal characteristics of meteorological droughts (MD) and agricultural (AD) their propagation in different climate zones is important for effective drought management, adaptation, food security. This study takes a unique approach by comparing irrigated rainfed croplands. A comprehensive framework developed using indices, statistical analysis, trend tests, wavelet transforms. The evolution patterns, trends, correlations MD AD Xinjiang Middle-lower Yangtze Plain (MYP) are investigated. main results showed that severe events (e.g., 2005–2009 MYP 2004–2009) significantly impacted systems, leading to decline vegetation condition. Long-term irrigation can substantially alleviate under conditions. From 2000 2019, on croplands continuously improved, while deteriorated during events. In contrast, although overall was mitigated, benefits were only evident periods weakened after 2013. Correlation analyses revealed mechanisms between croplands, highlighting key role local conditions spatial heterogeneity determining efficiency. findings provide guidance optimizing management strategies, planning, sustainable water resource management.

Language: Английский

Spatiotemporal Heterogeneity of Long-Term Irrigation Effects on Drought in China’s Arid and Humid Regions DOI Creative Commons

Enyu Du,

Fang Chen, Huicong Jia

et al.

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(7), P. 1115 - 1115

Published: March 21, 2025

Analyzing the spatiotemporal characteristics of meteorological droughts (MD) and agricultural (AD) their propagation in different climate zones is important for effective drought management, adaptation, food security. This study takes a unique approach by comparing irrigated rainfed croplands. A comprehensive framework developed using indices, statistical analysis, trend tests, wavelet transforms. The evolution patterns, trends, correlations MD AD Xinjiang Middle-lower Yangtze Plain (MYP) are investigated. main results showed that severe events (e.g., 2005–2009 MYP 2004–2009) significantly impacted systems, leading to decline vegetation condition. Long-term irrigation can substantially alleviate under conditions. From 2000 2019, on croplands continuously improved, while deteriorated during events. In contrast, although overall was mitigated, benefits were only evident periods weakened after 2013. Correlation analyses revealed mechanisms between croplands, highlighting key role local conditions spatial heterogeneity determining efficiency. findings provide guidance optimizing management strategies, planning, sustainable water resource management.

Language: Английский

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