Aquatic Ecological Restoration Pathways based on Habitat Restoration

Ruoxing Liu (), Chenye Gao, Jia Yang, Lina Zhou and Fan Yang
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Ruoxing Liu: National Research Institute for Rural Electrification, China-Pakistan “Belt and Road” Joint Laboratory on Small Hydropower Technology, Research Center on Rural Hydropower, MWR
Chenye Gao: National Research Institute for Rural Electrification
Jia Yang: National Research Institute for Rural Electrification
Lina Zhou: National Research Institute for Rural Electrification
Fan Yang: National Research Institute for Rural Electrification

A chapter in Proceedings of the 2026 11th International Conference on Financial Innovation and Economic Development (ICFIED 2026), 2026, pp 829-835 from Springer

Abstract: Abstract The aquatic ecosystem of a watershed is degraded due to the combined effects of hydrodynamic changes, water pollution, and habitat fragmentation. A framework for aquatic ecological restoration centered on habitat reconstruction is needed. Taking the middle and lower reaches of the Han River as an example, a two-dimensional hydrodynamic-water quality model is combined with a habitat suitability index to create an ecological quality index (EQI) and a connectivity index (CI), thereby identifying the types of degradation in different habitat units and the order of restoration. Based on this, scenarios such as flow improvement, structural restoration, water quality management, and comprehensive restoration are planned. A multi-objective evolutionary algorithm is used to explore the Pareto solution set in the “ecological benefits-engineering cost-robustness” space, and then a phased implementation path is formulated for the near-term, medium-term, and long-term. The results show that, with limited investment, the comprehensive restoration scheme can significantly enhance EQI and CI. For river sections classified as high priority, the improvement in habitat connectivity is particularly significant, which can provide quantitative support for the design of watershed aquatic ecological restoration projects.

Keywords: habitat restoration; aquatic ecosystem restoration; Han River; ecological quality index; connectivity; multi-objective optimization (search for similar items in EconPapers)
Date: 2026
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DOI: 10.2991/978-94-6239-642-5_85

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