Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL092354 |
Role of Groundwater in Sustaining Northern Himalayan Rivers | |
Yingying Yao; Chunmiao Zheng; Charles B. Andrews; Bridget R. Scanlon; Xingxing Kuang; Zhenzhong Zeng; Su‐; jong Jeong; Michele Lancia; Yiping Wu; Guoshuai Li | |
2021-05-04 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The Himalayas are critical for supplying water for ∼2 billion people who live downstream, and available water is highly sensitive to climate change. The role of the groundwater system in sustaining the northern Himalayan rivers remains unknown, and this compromises Asia’s future water sustainability. Here, we quantify the spatiotemporal contribution of groundwater to river flows in the Yarlung Zangbo Basin (upper reaches of Brahmaputra). Our results show that the groundwater recharge represents ∼23% of mean annual precipitation, translating into ∼30 km3/yr of baseflow, which contributes ∼55% of the total river discharge in the upstream reaches to ∼27% in the downstream reaches. The percentage of groundwater contribution is inversely related to topographic steepness and total precipitation, with the steepest topography and highest precipitation in the eastern Himalayas. This study fills a knowledge gap on groundwater in the Himalayas and is a foundation for projecting water changes under climatic warming. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/325844 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yingying Yao,Chunmiao Zheng,Charles B. Andrews,et al. Role of Groundwater in Sustaining Northern Himalayan Rivers[J]. Geophysical Research Letters,2021. |
APA | Yingying Yao.,Chunmiao Zheng.,Charles B. Andrews.,Bridget R. Scanlon.,Xingxing Kuang.,...&Guoshuai Li.(2021).Role of Groundwater in Sustaining Northern Himalayan Rivers.Geophysical Research Letters. |
MLA | Yingying Yao,et al."Role of Groundwater in Sustaining Northern Himalayan Rivers".Geophysical Research Letters (2021). |
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