住宅庭園景觀配置與空氣離子濃度分佈關係之研究

Relationship between Residual Garden Landscape and Air Irons Distribution

住宅庭園的角色已從單純的視覺觀賞與休閒，轉變為兼具促進生理、心理健康效用，許多研究指出空氣負離子對於人的生心理具正面效益，正離子具負面效益。本研究目的在於探討庭園景觀配置與空氣離子濃度空間分佈之關係，以個案研究方式於2008 秋季及2009 年春季進行正、負離子濃度測量，應用空氣離子係數、迴歸法、克利金法（kriging ）及疊圖法分析庭園景觀配置與空氣離子濃度相關性。研究發現春季的正、負離子濃度高於秋季，水景是負離子產生源、住宅活動與交通廢氣是正離子產生源；與水景的距離對負離子濃度、空氣負離子係數具有負向影響，對正離子濃度、單極係數具有正向影響；鋪面對於負離子濃度之維持及單極係數、空氣負離子具有負面影響。研究庭園中鄰近水池、遠離庭園外道路、遠離住宅出入口及通道的木平台區是最具生、心健康效益的區域。未來在庭園景觀設計上，可應用勒納德效應、植物尖端放電等原理進行庭園景觀空間配置，創造高健康度的住宅庭園。

The objective of this study is to demonstrate the relationship between residual garden landscape and air irons distribution. This study presented a novel approach that combined air irons monitoring, air irons indicators, regression analysis and Kriging methods. The air monitoring, air irons indicators and Kriging estimated maps results illustrated that source of negative air irons was waterfall and source of positive were human activities and air pollution from outside traffic tools. Moreover, the area of high strength negative air iron and negative air iron coefficient was wood stage locate at southwest corner in study garden. Results of regression shown that location near to waterfall outlet had high strength negative air irons, high negative air irons coefficient, low strength positive air ions and low monopole coefficient. Finally, we find that Lenard effect and plants are useful to generate negative air irons to set up health residual garden.