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Divergent Drying Mechanisms in Humid and Non-Humid Regions Across China

文献类型：期刊论文

作者Feng, Yao1; Mou, Xuejie2
刊名REMOTE SENSING
出版日期2024-11-01
卷号16期号:22页码:4193
关键词drought humid regions non-humid regions climate vegetation energy balance
DOI10.3390/rs16224193
产权排序1
文献子类Article
英文摘要Understanding the drying mechanism is critical for formulating targeted mitigation strategies to combat drought impacts. This study aimed to reveal divergent drying mechanisms in humid and non-humid regions across China from the multidimensional perspectives of climate, vegetation, and energy balance. During the period 1982-2012, the Standardized Precipitation Evapotranspiration Index (SPEI) revealed non-significant drying trends across China. Simultaneously, temperature and precipitation indicated a warming and drying pattern in the humid regions, contrasted with a warming and moistening pattern in the non-humid areas. The coupling effects of declined precipitation, increased vegetation coverage, and elevated temperature exacerbated dryness in the humid regions, while pronounced warming dominantly caused dryness in the non-humid regions. The inverse correlations between the actual evapotranspiration (ET) with precipitation and potential ET (PET) highlighted the principal role of moisture availability in divergent drying mechanisms over humid and non-humid regions. Random Forest models recognized precipitation and PET as the primary factors influencing SPEI in the humid and non-humid regions, respectively. Ongoing warming from 2013 to 2022 mitigated dryness in the humid regions due to the increased latent heat at the expense of sensible heat. Conversely, warming, amplified by the heightened sensible heat, exacerbated drought in the non-humid regions. By identifying the contrasting responses of humid and non-humid regions to warming and moisture availability, this study provides crucial insights for policymakers to mitigate drought impacts and enhance resilience in vulnerable non-humid areas.
WOS关键词CLIMATE-CHANGE ; DROUGHT ; CYCLE ; EVAPOTRANSPIRATION ; XINJIANG ; AREAS ; ONSET
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号WOS:001366561900001
源URL[http://ir.igsnrr.ac.cn/handle/311030/210475]  
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Feng, Yao
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Chinese Acad Environm Planning, Beijing 100041, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Yao,Mou, Xuejie. Divergent Drying Mechanisms in Humid and Non-Humid Regions Across China[J]. REMOTE SENSING,2024,16(22):4193.
APA Feng, Yao,&Mou, Xuejie.(2024).Divergent Drying Mechanisms in Humid and Non-Humid Regions Across China.REMOTE SENSING,16(22),4193.
MLA Feng, Yao,et al."Divergent Drying Mechanisms in Humid and Non-Humid Regions Across China".REMOTE SENSING 16.22(2024):4193.

入库方式： OAI收割

来源：地理科学与资源研究所

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