Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)

IF 3.1 Q2 WATER RESOURCES

Hydrology Pub Date : 2023-08-09 DOI:10.3390/hydrology10080163

F. Costa, António Vieira

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引用次数: 0

Abstract

The identification and characterization of barriers to river continuity are essential for the preparation of an inventory of hydraulic infrastructure. To this end, it is necessary to define the main identifying and characterizing elements of hydraulic infrastructures and descriptors of ecological continuity, with information that can characterize them from the point of view of their impact on the watercourse. Several authors have defined decision criteria for the removal of existing hydraulic structures in watercourses and their application, reinforcing the environmental benefits of the elimination of these hydraulic structures. In the present work, we proposed to develop a methodology for the evaluation of barriers in the Selho River (Guimarães Municipality, Northwest Portugal), elaborating an Environmental Condition Index (ECI) based on hydromorphological, socioeconomical, and ecological criteria, which allowed the identification of 43 weirs, of which 95% revealed quality inferior to Good. Following the application of a decision support methodology for the removal of hydraulic structures, it was possible to determine that 16 of the 43 weirs evaluated could be subject to removal, 26 would be under conditioned removal, and only 1 would be able to remain unchanged.

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溪流障碍清除:在小河流中是否可能有新的方法?Selho河案例(葡萄牙西北部)

识别和表征河流连续性障碍对于编制水利基础设施清单至关重要。为此，有必要界定水力基础设施的主要识别和表征要素以及生态连续性的描述符，并提供能够从其对水道的影响的角度对其进行表征的信息。几位作者已经确定了拆除水道中现有水工结构的决策标准及其应用，加强了拆除这些水工结构对环境的好处。在目前的工作中，我们建议开发一种评估塞尔霍河（葡萄牙西北部吉马良斯市）屏障的方法，根据水文形态、社会经济和生态标准制定环境条件指数（ECI），该指数允许识别43个堰，其中95%的堰质量低于良堰。在应用决策支持方法拆除水工建筑物后，可以确定评估的43个堰中有16个可以拆除，26个将处于条件下拆除，只有1个能够保持不变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Hydrology Earth and Planetary Sciences-Earth-Surface Processes

CiteScore

4.90

自引率

21.90%

发文量

192

审稿时长

6 weeks

期刊介绍： Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences, including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology, hydrogeology and hydrogeophysics. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, ecohydrology, geomorphology, soil science, instrumentation and remote sensing, data and information sciences, civil and environmental engineering are within scope. Social science perspectives on hydrological problems such as resource and ecological economics, sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site. Studies focused on urban hydrological issues are included.