抄録
The Kyoto protocol was adopted in 1997. According to some definitional options, forest and non forest area are distinguished using crown cover ratio. In order to delineate such forest regions, the development of the way to measure the crown cover ratio of forest is urgently necessary. In this study, various methods were tested for estimating crown cover ratio by using airborne spectral sensor data. Negative correlation coefficients were found among spectral bands of CAST in visible region and crown cover ratio. The best correlation coefficient was attained by the ratio of between 465nm and 700nm bands. Standard error was around 5% of the correlation. Whereas, the correlation coefficient was low by the NDVI which used often to estimate vegetation biomass. This research shows that the possibility to estimate the crown cover ratio accurately with optical remote sensing data.
