- 期刊
八掌溪流域主要水庫水質及污染源分析之研究
Research on water quality and pollution source analysis of major reservoirs in the Bazhang River Basin
摘要
本研究區域為八掌溪流域與其流域內的仁義潭水庫及蘭潭水庫，八掌溪流域主要供應嘉義地區農業、工業及民生用水，而其兩座水庫在其中占據了十分重要的角色。本研究結合都市暴雨逕流管理模式（Storm Water Model, SWMM）進行集水區水質流量模擬，及零維總磷質量平衡模式（Vollenweider Model）進行水庫水質模擬，主要目的為探討及分析蘭潭及仁義潭水庫集水區內污染源及污染熱區。由研究結果可知仁義潭水庫之水源有91 %引自竹山堰，而蘭潭水庫之水原有約83 %引自仁義潭水庫，此兩座離槽水庫其污染與竹山堰集水區息息相關，因此，竹山堰集水區管理工作更顯重要；由污染熱區分析結果可知，竹山堰集水區最下游子流域（S1）之單位面積總磷污染量最高（約有177 kg/yr/km^2），為主要污染熱區，因此，若要提升水庫水質，可優先進行此區域之污染削減，且應加強非點源污染控制。
並列摘要
The research area is the Renyitan Reservoir and the Lantan Reservoir in the Bazhang River Basin. The Bazhang River Basin mainly supplies water for agriculture, industry and people's livelihood in Chiayi. This study combines the urban storm water runoff management model (Storm Water Model, SWMM) and the zero-dimensional total phosphorus mass balance model (Vollenweider Model) to simulate the watershed responses and the reservoir water quality. The purpose of this study is to explore the pollution sources of the two off-site reservoirs and to analyze pollution hotspots in the watershed. The research results show that most of the pollution entering the reservoirs is from the Zhushan Weir Watershed. The main pollution hotspot is in the subbasin S1. In order to protect the reservoir water quality, it is important to improve the management strategies in the Zhushan Weir Watershed, particularly the pollution control in the pollution hotspots.