量化大坝对 1985-2014 年间全球溪流的影响

IF 5.8 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research Letters Pub Date : 2024-09-05 DOI:10.1088/1748-9326/ad6a70

Dongyang Han, Pan Liu, Lu Zhang, Lei Cheng, Qian Cheng, Xiaojing Zhang, Weibo Liu, Jiabo Yin

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引用次数: 0

摘要

在过去几十年里，全球大坝的数量急剧增加，通过调节天然溪流提供了可靠的水资源。然而，由于缺乏大坝蓄水量变化数据，评估大坝对天然河水流量的影响仍然是一项挑战。在此，我们利用卫星遥感数据分析了 1985 年至 2014 年全球 153 个流域的大坝流量调节情况。全球三分之二流域的调节率低于 10%，调节率高的流域主要分布在中亚和东亚等欠发达地区。从 1985 年到 2014 年，只有 27% 的流域的调节率呈上升趋势，没有流域的调节率呈下降趋势。国内生产总值、气候缺水和径流与流量调节有显著相关性。我们对大坝的流量调节进行了全球范围的评估，以支持全球水资源管理。

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Quantifying the impact of dams on global streamflow over the period of 1985–2014

The number of dams globally has increased dramatically over the past few decades, providing reliable water resources by regulating natural streamflow. However, assessing the impact of dams on natural streamflow at a large scale remains a challenge due to lack of dam storage variation data. Here we analyzed flow regulation by dams from 1985 to 2014 over 153 basins globally using satellite remote sensing data. Two-thirds of global basins are regulated below 10%, and the high degree of regulation is mainly distributed in underdeveloped regions such as Central Asia and East Asia. Only 27% of basins have an increasing regulation trend from 1985 to 2014 and no basins show a decreasing trend. The gross domestic production, climatic water deficit and runoff show significant correlations with the flow regulation. We provide a global scale assessment of flow regulation by dams to support global water resources management.

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来源期刊

Environmental Research Letters 环境科学-环境科学

CiteScore

11.90

自引率

4.50%

发文量

763

审稿时长

4.3 months

期刊介绍： Environmental Research Letters (ERL) is a high-impact, open-access journal intended to be the meeting place of the research and policy communities concerned with environmental change and management. The journal''s coverage reflects the increasingly interdisciplinary nature of environmental science, recognizing the wide-ranging contributions to the development of methods, tools and evaluation strategies relevant to the field. Submissions from across all components of the Earth system, i.e. land, atmosphere, cryosphere, biosphere and hydrosphere, and exchanges between these components are welcome.