摘要: | 生態水池因為具有多樣化的棲地與多孔質的特性,因此藉由設置生態水池,將能提高公園綠地的棲地異質性,強化景觀生態網絡之功能,有助於增加都市的生物多樣性。然而目前國內缺乏公園及校園綠地生態水池設置之評估機制,導致所設置的生態水池多無法發揮預期的生態功能效益,造成生態水池的功能不彰及毀損破壞,致使生物難以繼續棲息生存。因此本研究試圖建立一套公園及校園生態水池適地性評估方法,以提昇設置生態水池的成功率以及生態功能效益。
本研究首先透過文獻回顧與專家訪談整理出與生態水池相關之區域生態環境、水池鄰近環境、微氣候環境、水池、生物、水文、水質、景觀美質、維護管理以及環境教育等各類評估指標,再運用專家問卷及層級分析法(AHP),以Expert Choice2000(AHP分析軟體)進行計算分析,然後依據重要性和權重把城鄉生態系統與水池生態系統兩大部分的指標群,並依據權重值進行排序,篩選出較合適的評估指標,整合出一套適地性評估指標系統。
研究結果顯示本研究所蒐集的專家看法中,認定共有40項指標與生態水池較具有密切關係,所以篩選出的這40項評估指標適宜運用於評估生態水池。本研究最後把篩選出的評估指標系統研擬成一套可適用在公園及校園中預設生態水池及現有生態水池的適地性評估方法,作為現有及未來都市公園生態水池評估之應用,達成提高生態水池設置成效之目的。
Because the ecological pond has diversified caches and characteristics of the porous quality, so can improve the cache heterogeneity of the park green land, strengthen the function of the ecological network of the view, contribute to increasing the bio-diversity of the city by setting up the ecological pond . But lack the assessment mechanism of ecological pond set up of green land park and campus at present, how is the ecological pond resulted in setting up unable to give play to the anticipated ecological function benefit, causing the function of the ecological pond not to raise and damage destroying apparently , it is difficult to continue perching to survive to cause the living beings. So this research attempts to set up a Suitable assessment method of the ecological pond of the park and the campus, in order to promote the success rate which sets up the ecological pond and ecological function benefit.
At first in this research, through documents review and expert's interview ,put the related to ecological pond in order out with all kinds of assessment indexes , such as regional ecological environment ,the environment near pond , little climate environment , pond , living beings , hydrology , water quality, quality of view , maintenance management and environmental education ,etc., and then use expert's questionnaire and Analytic Hierarchy Process (AHP ) , carry on computational analysis with Expert Choice2000 (AHP analyses the software ), then according to importance and weight pairs of urban and rural areas ecosystem and pond ecosystem two most index group, and arrange in an order according to weight value, screen more suitable assessment index , combine out a set of suitable assessment index systems .
The result of study show that asserts in this expert's view collected of research that 40 indexes and ecological ponds relatively have close relations, so these 40 items of assessment indexes screened are suitable for applying to and assessing the ecological pond. Research this is it draft assessment index system that screen one applicable to preserve ecological pond and existing ecological suitable assessment side rightly of pond among park and campus to grind finally, as having now and application assessed in ecological pond of town park in the future, reach and improve the ecological purpose of setting up the effect of pond. |