2021-01-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/672254本研究計畫為評估桃園台地因自然、人為擾動所造成之水文環境變遷，分析過去至今擾動對於水文、水質之影響，並重新檢視在環境變遷下水資源利用之方向。本計畫預計蒐集桃園台地之土地利用、水資源利用、氣象、水文、水質等背景資料，配合衛星影像評估桃園台地複雜的灌溉系統所帶來的影響，建置桃園台地之SWAT水文模式 (Soil and Water Assessment Tool)，模擬流量、輸砂、營養鹽等水文水質項目。本計畫將分為以下七個研究方向：(1)蒐集桃園台地環境背景資料；(2) 配合衛星影像分析，建立研究區域之灌溉系統及相關參數背景資料庫；(3)建立桃園台地四個流域(南崁溪流域、老街溪流域、社子溪流域、福興溪流域)之SWAT模式，對水文、水質項目進行模擬；(4)設定不同情境以模擬各集水區下游水文與水質，評估其受上游農業灌區與工廠之影響；(5)量化桃園台地長期土地利用與管理方式變遷對地表水質時空之影響，並分析水質變遷驅動因子；(6)評估SWAT模型中內建灌溉與水庫操作對台灣水庫與農業灌區流域之水文與水質模擬適宜性；(7) 擬定桃園台地流域管理策略。 This project aims to evaluate the impact of natural and human disturbances on changes in hydrologic environment, and further review the strategies for water resources under the changing environmental conditions. In this sub-project, we will collect the background information of Taoyuan Tableland such as: land use, water use, climate, and hydrological and water quality data, to further simulate streamflow, sediment and nutrients in the study areas through the Soil and Water Assessment Tool (SWAT). The goal will be met by following tasks: (1) Collect the background information of the Taoyuan Tableland; (2) Integrate with satellite image analysis to build the database of irrigation systems and hydrological parameters in the study area; (3) Build SWAT models for the four watersheds of the Taoyuan Tableland (Nankan River Basin, Laoji River Basin, Shezhi River Basin, and Fuxin River Basin) to simulate streamflow, sediment, and nutrient loads; (4) Evaluate the impacts of the agriculture area and industrial area on the watersheds through different scenarios base on the collected data; (5) Quantify the impact of long-term changes in land use and management on surface water quality of the Taoyuan Tableland, and analyze driving factors of water quality changes; (6) Evaluate the suitability of the irrigation operations and reservoir operations in the SWAT model for simulating the reservoir watersheds and agricultural watersheds in Taiwan; (7) Establish the watershed management strategies for the Taoyuan Tableland.關鍵區水文模式水文與水質時空變遷土地利用變遷水田灌溉水庫Critical zonehydrological modelspatiotemporal changes in hydrology and water qualityland use changepaddy fieldirrigationreservoir