| Summary: | 碩士 === 國立臺北大學 === 自然資源與環境管理研究所在職專班 === 102 === Taiwan was difficult to reserve water resource, for reserving water human built dams and weirs, for prolonging the reservoir life and steadying riverbed built a lot of check dams, submerged dams and other kinds of weir structures, but led a very huge ecological impact.
Recently climate change increased extreme weather opportunities such as storms and droughts. This study adopted literatures, field surveys and GIS analysis integrate into adaptive management and best management practices to manage the weir structures maintenance and management on this high-uncertainty environment.
This study planned four kinds of weir structures management strategies within Keelung River Basin: (1) weir structural safety - implement standardized considerations of regulation implementation of structural safety risk and strengthen inspection and protection; (2) water resource - rise or restructure existing hydraulic structures facilities to confront “climate change adaptation”, set up detention pond infiltration surface water into groundwater source, and use Yuansantze floodway diversion water into appropriate detention pond for dry period using; (3) water quality - implement best management practices to appropriate location within reservoir watershed; (4) ecological aspect - set up multiple considerations of fish passage facilities and continue monitoring.
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