A fundamental study for evaluation of vegetation vitality and vegetation fraction with spectral reflectance

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  • 分光反射特性を用いた植生の活力度と緑被率の評価に関する基礎的研究
  • ブンコウ ハンシャ トクセイ オ モチイタ ショクセイ ノ カツリョクド ト リョクヒリツ ノ ヒョウカ ニ カンスル キソテキ ケンキュウ

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Abstract

Remote sensing technique has been used for evaluation of vegetation distribution. NDVI (Normalized Difference Vegetation Index) is one of the most famous indexes, and the usefulness has been shown by a lot of papers. However, the value of NDVI is decided with several factors of vegetation, such as vitality, fraction, and the stage of the vegetation. So NDVI is not an appropriate index to evaluate detailed vegetation factors. In this paper, we discussed the method to evaluate vegetation vitality and fraction together with spectral reflectance data. It was shown that combining NDVI and VIgreen (normalized visible red and green reflectance) is possible to evaluate vegetation vitality and fraction.

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