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題 名 | 景觀生態指數於集水區整體景觀時空間型態變遷探討=Landscape Ecological Indices in the Study of Spatiotemparal Pattern Changes of Watershed Landscapes |
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作 者 | 林裕彬; 曾正輝; 鄧東波; | 書刊名 | 農業工程學報 |
卷 期 | 48:1 2002.03[民91.03] |
頁 次 | 頁64-81 |
分類號 | 436.124 |
關鍵詞 | 景觀生態; 景觀生態指數; 集水區; 因子分析; 地理資訊系統; Landscape ecology; Landscape ecological indices; Watershed landscape; FRAGSTATS; Factor analysis; GIS; |
語 文 | 中文(Chinese) |
中文摘要 | 景觀生態為探討景觀空間型態與生態功能及過程之相互作用,而景觀之結構則可由景觀生態指數量化及描述。本研以淡水河流域五堵、金瓜溪、寶橋、三峽(2)及橫溪等五個子集水區為研究區,以1990、1993、1994、1996、1997、1998、1999年之SPOT衛星影像為基礎資料,應用FRASTATS計算景觀生態指標,探討各集水區景觀之時空間變遷及其景觀生態意義,並以因子分析探討集水區時空間之整體景觀變遷。景觀生態指數結果顯示,五堵集水區整體景觀於1990至1999年有明顯破碎化。寶橋子集水區亦有類似情況,且於1993年以後受人為影響的程度有逐漸增加之趨勢。金瓜溪子集水區之整體景觀較為穩定,屬於人為活動影響程度較低之景觀,於1998年可能受低度之干擾。三峽仍屬於受人為影響較大之子集水區。橫溪子集水區1994年以前受人為活動影響程度較輕微。由時空維度因子分析結果發現,五堵及寶橋子集水區歷年屬多樣性及形狀破碎型態之景觀,屬於人為干擾程度較大的集水區。歷年之三峽子集水則為形狀破碎之景觀型態,屬於漸趨人為化集水區之景觀。而歷年金瓜溪及橫溪子集水區整體景觀則未被歸類為此二型態之景觀,其屬於人為活動影響較低之自然景觀。 |
英文摘要 | Landscape ecology deals with the spatial interactions of landscape patterns and ecological processes in a landscape. These landscape patterns and interactions could be quantified and described by landscape indices. This study aims to apply landscape indices in the study of landscape changes of Wu-Tu, Chin-Gua Shi, Pau-Chiau, Shan-Shia and Han-Shi watersheds on TanSui River basin in 1990, 1993, 1994, 1997, 1998 and 1999 using SPOT images. In order to understand the landscape patterns and landscape ecological means of watersheds changes, the spatial and temporal watershed landscapes indices were calculated and discussed by using FRAGSTATS in geographic information systems. The landscape indices results illustrated that Wu-Tu watershed landscape has tended to fragmental, complex and diverse since 1990. The landscapes of Pau-Chiau and Shan-Shia watersheds have gradually been impacted by the human activities since 1993. The landscape of Chin-Gua Shi watershed was stable under lower human activities before 1998. Before 1994, the landscape of Han-Shi watershed was changed under lower human activities. Multi-dimension factor analysis results illustrated that Wu-Tu and Pau-Chiau watersheds, disturbed by human activities, were diverse and fragmental landscapes from 1990 to 1999. Shan-Shia watershed has been fragmental watershed gradually impacted by human activities. Gin-Gua Shi and Han-Shi watersheds were stable and nature landscapes under lower human activities. |
本系統中英文摘要資訊取自各篇刊載內容。