抄録
North-East China (Manchuria) had been occupied by Japanese army from 1930 till the end of II world war. During that time very big scale air photo application works had carried out for purpose of forest area survey.
That was a remarkable fact for air photo application history. But these results was almost burn to ashes and records was scattered and lost at the time of the defect of Japan. Fortunately this report unveiled the out line of this works.
