A large-scale vegetation change has taken place in Taisetuzan goshikigahara. So, I classified Sasa kurilensis and Pinus pumila by aerial photograph. As a result, distribution was expanded greatly.
However, according to the aerial photograph, there is a place where such a rapid increase and reduction that it is hard to think are checked.
Therefore, in order to know "which is reflecting distribution with an actual aerial photograph", the annual amount of extension of the Pinus pumila was investigated by measurement of bud scale marks.