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題名:恆春半島銀合歡入侵分佈之動態與區位分析
書刊名:航測及遙測學刊
作者:呂明倫黃靜宜鍾玉龍
作者(外文):Lu, Ming-lunHuang, Jing-yiChung, Yuh-lurng
出版日期:2009
卷期:14:1
頁次:頁1-9
主題關鍵詞:入侵植物多時段最大概似分類法經營管理人為干擾Invasive plantMulti-temporalMaximum likelihood classifierManagementHuman disturbance
原始連結:連回原系統網址new window
相關次數:
  • 被引用次數被引用次數:期刊(4) 博士論文(0) 專書(0) 專書論文(0)
  • 排除自我引用排除自我引用:3
  • 共同引用共同引用:3
  • 點閱點閱:4
入侵植物-銀合歡(Leucaena leucocephala)威脅台灣的本土生物多樣性,已成為現今最受矚目的生態問題之一。本研究以恆春半島為研究區域,藉由SPOT多時段影像資料搭配最大概似分類法,建立1988與2007年銀合歡之空間分佈資訊,並配合地形與土地利用相關的環境因子,監測銀合歡入侵之動態發展,用以暸解銀合歡的空間分佈規則。研究結果顯示,1988與2007年銀合歡分類結果之總體準確度皆在85%左右,由區位分析可知,銀合歡之面積呈現增加的趨勢,且入侵的規則性多偏好於低地、緩坡,以及近道路與農地等區域,進一步利用統計分析瞭解銀合歡入侵與環境因子間的關係,結果發現,以上4個因子皆有一定的相關程度,因此,本研究建議未來的經營管理工作可著重於這些人為干擾明顯之區域。
Biodiversity in Taiwan is interfered by an invasive plant: Leucaena leucocephala (L. leucocephala), which has been considered one of the most important contemporary ecological problems. This study identified spatial extents of L. leucocephala in the Hengchun Peninsula in 1988 and 2007 using multi-temporal data from SPOT images with maximum likelihood classifier. To understand the spatial dynamics of L. leucocephala through time, we investigated the relationships between the species expansion and topography and land use. For classified maps of L. leucocephala and each image date, overall accuracies above 85% were obtained. Results of the regional analysis showed that the area was an increase in L. leucocephala cover, and a preferential invasion was found at lower elevations, gradual slopes, proximity to the roads and farmlands. Further, the results of statistic analysis indicated that the correlations of the elevation, slope, road and farmland with L. leucocephala invasion were considerably. Therefore, enhancement was required for the L. leucocephala management on human disturbance zones.
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