Spatiotemporal dynamics of global surface and rootzone soil moisture: a comprehensive assessment from dominant factors, impact pathways, and deficit probability
文献类型：期刊论文
| 作者 | Wang, Zijun3; Wu, Rong2; Liu, Yangyang1; Cui, Chenfeng3; Zhao, Na4; Zhao, Yinghan1; Wen, Zhongming1; Zhang, Zhixin1; Zhang, Wei1 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 468页码:117783 |
| 关键词 | Soil moisture Vegetation greening Climate change Drought stress Probabilistic threshold |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2026.117783 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Soil moisture (SM) plays a vital role in the global water and carbon cycles. The intensification of climate change in the 21st century has complicated the understanding of variations in surface soil moisture (SMsurf) and rootzone soil moisture (SMroot) and their driving mechanisms. Therefore, this study provided a comprehensive assessment of SMsurf and SMroot from the perspectives of spatiotemporal characteristics, dominant factors, impact pathways, and deficit probability during the period 2001-2021. The results indicated that although SMsurf and SMroot exhibited broadly similar spatial patterns, their fluctuation periods, amplitudes, and frequencies differed markedly in hotspot regions. Numerical simulation experiments based on Random Forests revealed the mean-state SM driving factors, showing that atmospheric water demand was the primary cause of aridity in both global SMsurf and SMroot, with effects of 8.9 & times; 10-5m3/m3/year and 7.5 & times; 10-5m3/m3/year, respectively, while vegetation and precipitation exerted strong but contrasting effects. The Partial Least Squares Structural Equation Modeling further revealed that vegetation primarily mediated the indirect effects of climate on SM. Copula functions revealed that precipitation, SPEI, and vegetation dynamics were the primary risk factors for both SMsurf and SMroot deficits. Under the same conditions, the conditional probability of SM deficits induced by these factors is 2-3 times higher than that associated with other drivers. Overall, these findings will provide important insights for global water resource management and the sustainable development of ecosystems. |
| URL标识 | 查看原文 |
| WOS关键词 | HYDROLOGIC FUNCTIONS ; KARST LANDSCAPES ; WATER ; EVAPOTRANSPIRATION ; EVAPORATION ; RESILIENCE ; PROGRAM ; CHINA ; FIELD |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001724242600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221181]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Liu, Yangyang |
| 作者单位 | 1.Northwest A&F Univ, Coll Grassland Agr, Xinong Rd 22, Yangling 712100, Shaanxi, Peoples R China; 2.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn Sc, Wuhan, Peoples R China; 3.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zijun,Wu, Rong,Liu, Yangyang,et al. Spatiotemporal dynamics of global surface and rootzone soil moisture: a comprehensive assessment from dominant factors, impact pathways, and deficit probability[J]. GEODERMA,2026,468:117783. |
| APA | Wang, Zijun.,Wu, Rong.,Liu, Yangyang.,Cui, Chenfeng.,Zhao, Na.,...&Zhang, Wei.(2026).Spatiotemporal dynamics of global surface and rootzone soil moisture: a comprehensive assessment from dominant factors, impact pathways, and deficit probability.GEODERMA,468,117783. |
| MLA | Wang, Zijun,et al."Spatiotemporal dynamics of global surface and rootzone soil moisture: a comprehensive assessment from dominant factors, impact pathways, and deficit probability".GEODERMA 468(2026):117783. |
入库方式： OAI收割
来源：地理科学与资源研究所
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