Effets de la couleur et de la brillance du sol sur les indices de végétation

摘要: Abstract Variations in the spectral properties of soils related to their colour and brightness considerably influence detection sparse vegetation heterogeneous environments using indices. During last decade, a new generation indices (NDVI, PVI, SAVI, MSAVI, TSAVI, TSARVI, ARVI, GEMI, AVI) was developed order minimize these effects. To evaluate sensitivity soil test potential for more precise description cover different rates, number simulations were carried out first radiative transfer model. The model adapted studying directly contribution optical bare on index. results show that constitutes valuable tool analysing understanding interactions between electromagnetic radiation, soil. It makes it possible ...