Damming induces convergence of riverscapes in the Nile, Yangtze, and Amazon Basin: The importance of localized watershed management

IF 5.1 2区环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL Ambio Pub Date : 2025-03-19 DOI:10.1007/s13280-025-02160-6

Wanyu Qi, Wanyu Wang, Jinxia Huang, Reija Hietala, Shengjun Wu, Maohua Ma, Chundi Chen

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Abstract

Understanding changes in riverscapes and their influencing factors is crucial for effective biological conservation. Although the impact of dams on riverscape changes has been investigated, comparative research is limited. This study first conducted a comparative analysis of riverscape configuration patterns from different perspectives using the Landscape Fragmentation Index of Configuration among three major global dammed rivers: the Aswan High Dam on the Nile River, the Three Gorges Dam on the Yangtze River, and the Jirau and Santo Antônio dams in the Amazon Basin. Subsequently, through the Analysis of Similarity of various indices, we identified a significant trend toward resemblance in the configurations across the three dammed rivers. Further, we found that this resemblance progressed in a trend similar to that of riverscape composition, with built-up and water land-use type being the primary factor explaining the similarity across these regions. These findings provide valuable insights for localized management measures in dam-affected areas.

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筑坝导致尼罗河、长江和亚马逊流域的河流景观趋同：本地化流域管理的重要性。

了解河流景观的变化及其影响因素对有效保护河流景观具有重要意义。虽然水坝对河流景观变化的影响已被调查，但比较研究有限。本研究首先利用景观破碎化指数从不同角度对比分析了尼罗河阿斯旺大坝、长江三峡大坝、亚马逊河流域吉劳大坝和桑托Antônio大坝这三条全球主要水坝的河流景观配置格局。随后，通过各项指标的相似度分析，我们发现了三条拦坝河流的配置有明显的相似趋势。此外，我们发现这种相似性的发展趋势与河流景观组成相似，建筑和水资源利用类型是解释这些地区相似性的主要因素。这些发现为水坝影响地区的本地化管理措施提供了有价值的见解。

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来源期刊

Ambio 环境科学-工程：环境

CiteScore

14.30

自引率

3.10%

发文量

123

审稿时长

6 months

期刊介绍： Explores the link between anthropogenic activities and the environment, Ambio encourages multi- or interdisciplinary submissions with explicit management or policy recommendations. Ambio addresses the scientific, social, economic, and cultural factors that influence the condition of the human environment. Ambio particularly encourages multi- or inter-disciplinary submissions with explicit management or policy recommendations. For more than 45 years Ambio has brought international perspective to important developments in environmental research, policy and related activities for an international readership of specialists, generalists, students, decision-makers and interested laymen.