頁籤選單縮合
題 名 | 森林崩塌復育及影響因子分析=Analysis of Forest Restoration after Landslide and the Influencing Factors |
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作 者 | 林國聖; 宋承恩; 王素芬; | 書刊名 | 航測及遙測學刊 |
卷 期 | 28:3 2023.09[民112.09] |
頁 次 | 頁157-175 |
分類號 | 440.98 |
關鍵詞 | 植生指標; 植被復育; 崩塌地規模; 崩塌地位置; 地形參數; Vegetation index; Vegetation restoration; Landslide scale; Landslide location; Terrain parameters; |
語 文 | 中文(Chinese) |
DOI | 10.6574/JPRS.202309_28(3).0002 |
中文摘要 | 多時序光學遙測影像已廣泛運用在植生恢復監測研究中,各類植生指標也經常被應用於評估複雜的復育過程。本研究利用Landsat衛星影像觀測神木村集水區2009年莫拉克風災崩塌後的植生恢復,比較不同崩塌規模與邊坡位置的復育差異,並分析影響復育的重要因子。研究結果顯示,常態化差異植生指標的復育趨勢較常態化燃燒比快。對比災前植生狀況,大型崩塌地復育速率明顯低於中小型崩塌,而崩塌上、中、下段位置的植生恢復具有相似的趨勢。在復育影響因子方面,經迴歸分析顯示,殘留植被對於長期的恢復最具有影響力,干擾前植生量與種源距離也是重要因素,地形特性對於植被定殖再生提供間接影響。 |
英文摘要 | Multi-temporal optical satellite imagery is widely used in vegetation restoration monitoring research, and various vegetation indices are used to evaluate complex restoration processes. In this study, Landsat imagery was used to observe the vegetation recovery after the landslide of the typhoon Morakot in the Shenmu Village watershed area in 2009. Meanwhile, the differences in restoration of different landslide scales and slope locations, and the important factors affecting restoration were analyzed. The result shows that the recovery trend of Normalized Differential Vegetation Index is faster than Normalized Burn Ratio. The recovery rate of large-scale landslides is significantly lower than that of small and medium-sized landslides, while the vegetation restoration at the top, middle and lower part of the landslides have similar trends. Regression analysis shows that residual vegetation is the most important factor that affect the long-term restoration, and the vegetation before disturbance and the distance to the forest are also important factors; topographic characteristics provide indirect effects on vegetation colonization and restoration. |
本系統中英文摘要資訊取自各篇刊載內容。