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應用SWMM模式模擬鹿寮溪水庫集水區環境變化對水質水量之影響

Applying the SWMM Model to Predict the Effects of Environmental Changes on Water Quality and Hydrologic Responses

摘要


近年來工商業快速發展,許多地方的都市化程度日益增加,環境變化將影響集水區水質水量,也使得集水區經營管理變得更加重要。本研究以鹿寮溪水庫集水區為研究區域,鹿寮溪水庫為當地農業及民生用水重要來源,因此,集水區內環境變化對於水質水量的影響是相當重要的課題。本研究應用暴雨逕流管理模式(Storm Water Management Model, SWMM),模擬在不同的環境變化情境下集水區水質水量之變化,所評估的情境包括:集水區不透水面積增加、非點源污染量增加及點源污染量增加等等。由本研究結果可知,集水區不透水面積增加主要影響流量反應,污染源的增加對水體水質之影響甚鉅,其中又以點源污染之影響較顯著,雖本區域並非水質水量保護區,但仍建議應加強集水區管理,以達到水質保護之目標;本研究分析結果可提供鹿寮溪水庫集水區管理策略之參考。

並列摘要


Rapid industrial development in recent years increases the degree of urbanization. Environmental changes influence the watershed environment; it is the major problem in watershed management. The Luliao Reservoir Watershed is the case area in this study. The Luliao Reservoir is the major water source for agricultural activity and domestic use. The objective of this study is to assess the possible impact of human activities and environmental changes on the watershed environment. This study applies the Storm Water Management Model (SWMM) to predict the hydrologic responses and water quality in the case area. The results show that the increase of pollution sources, point sources in particular, may worsen water quality. Therefore, pollution control is important in watershed management. The discussion and analysis can be useful references for watershed management.

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