Rooting depth uncertainty from hydrological perspectives with a focus on water-stressed regions
文献类型：期刊论文
| 作者 | Zhu, Haoyang1,2,3; Luo, Yi1,3,4; Sun, Lin1,3; Wang, Xiaolei1,3; Jia, Xiaoxu1,3 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2026-03-16 |
| 卷号 | N/A |
| 关键词 | Rooting depth Hydrological processes Earth system modeling Uncertainties Water-stressed regions |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-025-1839-x |
| 产权排序 | 1 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | In Earth system modeling, plant rooting depth serves as a pivotal parameter that profoundly influences water resource allocation, runoff generation, deep drainage, and vegetation transpiration. Nevertheless, its significance in global-scale hydrological research has long been widely undervalued. Direct, large-scale observation of rooting depth remains a formidable challenge, primarily due to the inherent complexity of subsurface environments and limitations of current measurement techniques. Indirect estimation methods, such as inversion and optimization approaches, enable large-scale estimation of effective hydrological rooting depth and have thus emerged as indispensable tools for characterizing the spatial patterns of rooting depth. This study systematically evaluated and intercompared eight existing global rooting depth datasets (seven indirectly estimated datasets and one observation-based reference dataset). It further quantified the impacts of discrepancies among these datasets on hydrological processes simulations and identified key methodological limitations in previous rooting depth estimation research. Key findings reveal pronounced uncertainties in rooting depth estimates, which are particularly prominent in water-stressed regions. In these regions, variations in rooting depths can lead to remarkable discrepancies in hydrological simulations, with deviations of up to 40% in evapotranspiration, 31% in precipitation infiltration, and 51% in water yield. Mechanistic analysis demonstrates that the primary source of these uncertainties lies in the inadequate integration of root-soil water coupling mechanisms in existing modeling frameworks, particularly for water-stressed ecosystems. This study highlights the critical role of rooting depth in regulating terrestrial hydrological cycles and provides targeted recommendations for advancing rooting depth research, with a specific focus on addressing data scarcity and improving mechanism representation in water-stressed regions. |
| URL标识 | 查看原文 |
| WOS关键词 | GROSS PRIMARY PRODUCTION ; ZONE STORAGE CAPACITY ; SOIL-MOISTURE ; PRECIPITATION VARIABILITY ; VEGETATION ; CLIMATE ; ECOSYSTEMS ; RESPONSES ; PATTERNS ; BALANCE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001720722800001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221299]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Luo, Yi; Jia, Xiaoxu |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Beijing Nat Resources Consolidat & Ecol Restorat C, Beijing 101160, Peoples R China; 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China; 4.Hainan Normal Univ, Sch Geog & Environm Sci, Haikou 571158, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Haoyang,Luo, Yi,Sun, Lin,et al. Rooting depth uncertainty from hydrological perspectives with a focus on water-stressed regions[J]. SCIENCE CHINA-EARTH SCIENCES,2026,N/A. |
| APA | Zhu, Haoyang,Luo, Yi,Sun, Lin,Wang, Xiaolei,&Jia, Xiaoxu.(2026).Rooting depth uncertainty from hydrological perspectives with a focus on water-stressed regions.SCIENCE CHINA-EARTH SCIENCES,N/A. |
| MLA | Zhu, Haoyang,et al."Rooting depth uncertainty from hydrological perspectives with a focus on water-stressed regions".SCIENCE CHINA-EARTH SCIENCES N/A(2026). |
入库方式： OAI收割
来源：地理科学与资源研究所
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