Assessing dam-induced alterations in an Amazonian tributary using river flow health index and planform parameters

IF 2.3 4区 地球科学 Acta Geophysica Pub Date : 2024-04-18 DOI:10.1007/s11600-024-01330-6
Maithili Mohanty
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Abstract

Understanding the impact of hydroelectric development in the Brazilian Amazon is critical for maintaining ecological balance. This research evaluates the impact of the Balbina Dam on the Uatumã River's flow and landscape. We employ a method to measure flow regime changes, scoring these changes from 0 to 1. Additionally, we analyze landscape changes through satellite imagery. Results indicate a significant dam-induced alteration in downstream water flow, with a score of 0.638. However, the river's in-stream shape has not notably changed since the dam construction. Assessing lateral water movement in the adjacent forested areas is challenging with satellite data, necessitating on-ground studies for accurate mapping. By integrating flow measurement techniques with landscape analysis, this study provides insights into sustainable water management and ecosystem rehabilitation in the Amazon.

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利用河流健康指数和平面参数评估亚马逊河支流因大坝引起的变化
了解巴西亚马逊地区水电开发的影响对于维持生态平衡至关重要。本研究评估了巴尔比纳大坝对 Uatumã 河流量和景观的影响。我们采用一种方法来测量水流状态的变化,并将这些变化从 0 到 1 进行评分。此外,我们还通过卫星图像分析了景观变化。结果表明,大坝引起的下游水流变化非常明显,分值为 0.638。然而,自大坝建成以来,河流的内流形状并未发生明显变化。利用卫星数据评估邻近森林地区的横向水流具有挑战性,因此必须进行实地研究,以绘制精确的地图。通过将流量测量技术与地貌分析相结合,这项研究为亚马逊地区的可持续水资源管理和生态系统恢复提供了启示。
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来源期刊
Acta Geophysica
Acta Geophysica GEOCHEMISTRY & GEOPHYSICS-
CiteScore
3.80
自引率
13.00%
发文量
251
期刊介绍: Acta Geophysica is open to all kinds of manuscripts including research and review articles, short communications, comments to published papers, letters to the Editor as well as book reviews. Some of the issues are fully devoted to particular topics; we do encourage proposals for such topical issues. We accept submissions from scientists world-wide, offering high scientific and editorial standard and comprehensive treatment of the discussed topics.
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