2017-07-012024-05-15https://scholars.lib.ntu.edu.tw/handle/123456789/666001摘要：全球的水資源缺乏議題，正隨著氣候變遷、全球人口數與人口密度的增加，以及更多地區的都市化與工業化而日趨嚴重；而人口集中的都市地區，在未來更是水資源缺乏衝擊的首當其衝區域。因此都市地區的水資源管理效能甚為重要，水足跡評估方法則能夠細部的反映出都市地區水資源消耗之時間與空間變異性，為一項可提昇效能之管理工具。然而，受到盤查資料的空間尺度以及資料可獲性的限制，目前的都市水足跡評估無法在空間上精細地分析水資源消耗熱點，使其無法有效地對於都市水資源管理策略的效益進行評價，而無法做為擬定管理策略的決策支持工具。本計畫擬建立高空間解析度之水足跡評估模式，根據都市內部的土地利用型態、人口密度以及現有的自來水與污水下水道設計方法，計算在現有的供水系統以及降雨之下，都市內部的藍水足跡、綠水足跡與灰水足跡。並接著根據不同低衝擊開發(Low impact development, LID)技術之特性，評估各LID在都市降雨逕流滯留、污水再生後回收應用於不同的可用水時，對於都市內部各地區產生的水足跡效益，以期評估計畫中LID的效益與在都市地區的可應用性，並能夠更加完善都市的水足跡評估，做為水資源管理決策支援工具，也進一步增加都市地區對於水資源缺乏衝擊的調適能力。<br> Abstract: More and more regions in the world are suffering from water scarcity. This worldwide phenomenon is mainly caused by climate change, global population growth, urbanization and industrialization, which not only decrease local water availability, but also increase water use demands. Among them, urban regions are the most densely populated area, which could be easily affected by water resource depletion impact relative to other regions. Therefore, water resource management can be crucial in solving urban water scarcity issues by identifying water consumption spatial hotspots, assessing water resource sustainability and finally formulating respond strategies in those corresponding hotspots. Water footprint (WF) accounting method is one of the methods which has been widely utilized as a decision support tool in water resource management. However, WF accounting in urban level could be limited mainly due to data availability and spatial resolution of data; in addition, WF assessment on integrated water supply and wastewater system in urban areas remain further examination. This study aims to explore urban WF (blue water, green water and grey water footprint) with high spatial resolution by utilizing land use map, region population density within existing water supply system and rainwater based on geographical information system (GIS); with water footprint accounted, WF sustainability in urban area was also assessed. The second goal of this study is to assess the performance of several low impact development (LID) and to test them in Taipei area as scenario analysis. The LIDs can both intercept storm water runoff and enhance water quality of wastewater regeneration with low resource consumption, which could further be reused and create benefits in local water footprint. This study seeks to present an integrated urban water footprint assessment and to address current water scarcity issues by evaluating the practicality and functionality of LIDs with WF decision support method, therefore increasing the adaptability of water scarcity impact of urban areas in the future.水資源都市水足跡低衝擊開發設施water resourceurban water footprintlow impact development