衛星影像於大肚山地區植被光譜變遷之監測

The Application of Satellite Imagery on Monitoring the Spectral Change of the Vegetation in the Dadu Mountain Area

曾仁鍵(Jen-Chien Tseng)

指導教授 ： 邱祈榮

國立臺灣大學/生物資源暨農學院/森林學研究所/碩士(2004年)

https://doi.org/10.6342/NTU.2004.01314

摘要

本研究經由林火紀錄資料初步瞭解大肚山地區火燒頻繁情形，及此地區之氣候特性，接著利用空間分析得到草生地為大肚山地區火燒頻率最高之土地覆酵

關鍵字

標準化差異植生指數 ； 亮度指數 ； 雙光譜圖 ； 燃料量 ； 遙感探測

並列摘要

The purpose of this thesis was to find out the fire frequency and climatic characteristics of Dadu Mountain Area by the fire records; accordingly, the grassland was frequently burnt in this area through spatial analysis. For that reason, we investigated fuel loading in long-term and focused on burnt and un-burnt grasslands to detect the growth tendency of vegetation.
In addition, we analyzed the spectrum change of different seasons in the main three vegetation types—Acacia confusa, Panicum maximum Jacq, and Casuarina equisetifolia. Moreover, we implemented the analysis of variance by the independent variables, including red, near-IR, BRI, and NDVI. Based on the analysis of bi-spectral plot, the vegetation spectral change in different seasons by both the NDVI, relation to the spectral angle, and the BRI, relation to the spectral vector length could be explained. Furthermore, the bi-spectral plot variations with some vegetation spectral change could be caused in counter-clockwise direction during different seasons. In summary, the bi-spectral plot could be apply in monitoring the vegetation spectral change. The burnt vegetation was significant different on spectral reflection on the bi-spectral plot and the seasonal change.
Finally, there was significant relation between the green cover percentage of fuel and spectral reflection. However, it was unreasonable to represent this relationship using simple regression analysis by the spectral reflection and the curve of fuel loading.

並列關鍵字

Normalized Difference Vegetation Index ； Fuel Loading ； Brightness Index ； Remote Sensing ； Bi-spectral Plot

參考文獻

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