隨著全球氣溫的持續升高，東亞地區，尤其是台灣，面臨著夏季高溫現象的日益早到和頻繁。根據聯合國政府間氣候變化專門委員會（IPCC）的第六次評估報告，未來20年內全球氣溫預計將上升超過1.5°C，亞洲地區亦將面臨長期的高溫狀態。面對都市化與氣候變遷帶來的挑戰，基於自然的解決方案（NBS）被提倡為一種有效的應對策略，利用自然生態過程來解決社會挑戰，提供可持續的環境實踐。本研究建立在熱能在建成環境中的熱能轉換過程上，重新定義NBS在降溫潛力，透過適宜性分析建立一套評估架構，識別都市用地中NBS的潛在降溫因子，並探討這些因子在熱能流動上的相互作用和空間分佈狀況。其研究面相分為四個主要面向：反射太陽輻射能力、熱儲存與釋放能力、代謝熱輻射能力、以及街谷內的通熱能力，並再將主要影響將都市溫度降溫的因子進行集群分析，以分群的方式歸納出那些因子組成特性具有較高的降溫條件與NBS潛力。
初步結果顯示，在反射太陽輻射能力面上，建物因樓層不高，反射能力差異不大。然而，高反射能力集中在安南區及東區的道路和綠地，水體反射最強且主要在安平區和北區；熱儲存與釋放能力上，比熱容較高的建物集中在東北側的安南區，而樹木與綠地的熱儲存能力因其分佈廣泛，特別是在東區及中西區，提供了顯著的降溫效果；代謝熱輻射能力上，因蒸發能力最高的區域為安南區、安平區及中西區，樹木的蒸散作用和光合作用主要集中在中西區和南區，有效提升了這些區域的空氣調節能力；街谷內的通熱能力，目前該面向的分析尚在進行中，其研究結果顯示，都市降溫潛力區域位於建成開發強度較高地區，反之開發強度底但自然資源較豐富的地區反而在熱能轉換上潛力較低，因此都市建城地區是較有NBS降溫潛力的。

With the continuous rise in global temperatures, East Asia, particularly Taiwan, is experiencing increasingly early and frequent high temperatures in summer. According to the IPCC's Sixth Assessment Report, global temperatures are expected to rise by more than 1.5°C within the next 20 years, leading to prolonged high temperatures in Asia. In response to urbanization and climate change, Nature-Based Solutions (NBS) are advocated as an effective strategy that utilizes natural processes to address social challenges and provide sustainable environmental practices.This study focuses on heat transfer in built environments and redefines the cooling potential of NBS. It establishes an assessment framework to identify potential cooling factors of NBS in urban land use and explores the interaction and spatial distribution of these factors in heat flow. The study covers four main aspects: solar radiation reflection, heat storage and release, metabolic heat radiation, and heat conduction within street canyons. Key factors that contribute to urban temperature reduction are clustered to determine which combinations have higher cooling potential and NBS effectiveness.Preliminary results show that buildings have similar solar radiation reflection abilities due to their low height, but high reflection areas are concentrated in An-Nan and East Districts' roads and green spaces, with the strongest reflections from water bodies in Anping and North Districts. Heat storage and release capabilities are higher in buildings in northeastern An-Nan, while trees and green spaces, especially in East and Central-West Districts, provide significant cooling. Areas with high evaporation, mainly in An-Nan, Anping, and Central-West Districts, benefit from trees' evapotranspiration and photosynthesis, enhancing air regulation. Urban areas with high development intensity show greater NBS cooling potential than less developed, resource-rich areas.

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