Fish habitat is an important part of the river ecosystem.However,the barrages in the rivers have blocked the channels for fish to migrate upstream,destroying fish habitats to a certain extent.For fish with migratory habits,the blocking of migratory routes may result in the decline of population resources,so the restoration of fish habitat connectivity is becoming more and more important.This paper delimits the habitat protection range for the project of Lhasa Pagu Reservoir,determines the fish object,the time of passing the fish,and analyzes the ecological habits of the fish object.According to the current situation of dam containment engineering and related hydraulic calculation,the type and structure of the re-built fish weir for connectivity restoration are determined.In order to have more fish successfully go up the fish weir,the design scheme of the fish weir was finally determined through numerical model verification.This paper provides reference for similar fish habitat connectivity restoration project design.
fish habitatconnectivity repairrebuilt fish facilitiesfish weirnumerical model
维普
万方数据
