| Abstract: | 自工業革命後，造成都市化的現象，都市化對於水系生態系統和功能具有顯著的負面影響，包括減少透水表面積並增加洪水頻率、都市水汙染等，城市發展對土地資源的使用過度，破壞了原有的生態，造成許多都市環境衝擊，造成生活環境與生態上的損失。這些造成淹水及汙染的水若能善加利用，便可以對都市水資源具有改善的效益。雨水花園，也稱做生物滯留區，已經被推薦為減少都市地區中汙染源的最佳處理方法，不僅可以達到減少地表逕流、降低淹水並對水質淨化具有舉足輕重的影響。 因此，本研究以台中東海大學做為研究範圍，東海大學現有校園規劃對環境尤其是雨水和排水方面尚未有明顯規劃，若能透過雨水花園改善現有校園環境並結合綠色校園對附近河川及自然環境上的影響程度上有其重要性。因此本研究目的為：1.獲得於東海校園設置雨水花園時，不同空間屬性與設置可行性的關聯性。2.獲得設置雨水花園於東海大學的各項可行性評估因子之間的差異性。 研究對象為東海大學受過景觀、建築或美術相關專業訓練之師生，經文獻回顧並運用描述性統計、信度分析、因素分析與相關分析等，結果顯示，宿舍區若要設置雨水花園是最可行的；其次為教學區；活動區若要設置雨水花園是中度可行的；行政區若要設置雨水花園是中度可行的；牧場區設置雨水花園不具有意義；教堂區設置雨水花園不具有意義。 本研究之結果可作為後續東海大學設置雨水花園時可優先於「宿舍區」做為設置雨水花園的優先場所，可有效降低生活汙水中的化學物質後再排入地下排水道，大幅度降低對附近河川的生態汙染。第二優先設置雨水花園的場所為「教學區」，扮演教育的功能，透過有別於下水道的開放露天的設計，讓學生對都市硬鋪面、雨水徑流、和生態環境的關係有更進一步的認識。以上面兩區域作為優先示範點，檢視其施行過程、結果與效益，確立其施作之優點與可行性，之後推廣至學校各區域。
Since the industrial revolution, urbanization has been bringing critical negative impacts on water ecology and its functions, resulting in decreasing porous surfaces as well as increasing flood frequencies and urban water pollution. The overuse of land resources through urban development has brought destruction on existing ecolgies, causing impacts in the urban environment and its ecosystems. If good use can be made to flooding and water pollution, great beneficial changes can be brought to the water resources in the city. Rain gardens, also known as bioretention areas, are recommended as the best method to reducing urban pollution, not only does it improve water quality but also brings decisive results in decreasing surface runoff and floods. This study is aimed at Taichung Tunghai University as its research area. The current planning of the campus has yet to have distinct planning in rainwater and drainage. Creating a better campus environment through rain gardens and connecting the green campus to surrounding river and nature systems can bring signifcant impacts. Thus, the purpose of this research is to 1) gain correlation between different space attributes and the feasibility of installing rain gardens on the campus of Tunghai University's, and 2) gain differentiation of various feasibility factors of installing rain gardens on the campus of Tunghai University's. The subjects are targeted at teachers and students trained in landscape architecture, architecture and fine arts related professions in Tunghai University. Through literature reviews, descriptive statistics, reliability analysis, factor analysis and correlation analysis, the results suggest that installing rain gardens in the dormitory area as most feasible, followed by the teaching area. Installation of rain gardens in active areas and the administrative areas show a medium level of feasibility, while installation of rain garden in the ranch area and church area show insignificant results. The results of this study conclude that the dormitory area should be the priority area to install rain gardens on the campus of Tunghai University, not only can it reduce chemical substances in domestic wastewater before being discharged into the underground drainage systems, it can also highly reduce the impact of ecological pollution of nearby rivers. The second priority is the teaching area, where an open air design, instead of an underground system, can bring educational means, allowing for students to better understand the connections between ecological environments, urban hardscapes and rainwater runoffs. The two areas referred to above can be prioritized as demonstrative areas, through observing its construction processes, results and benefits, establishing its advantages and feasibility, the system can then be further extended to other areas of the campus. |
