Estimating Stand Structure Using Digitalized Aerial Photography
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概要
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This study estimates the structure of a forest stand using high-resolution data from digitized aerial photography. The study area was conducted on the fifteen plots with the size of 20m×20m or 15m×15m taken as samples of sugi (Cryptomeria japonica D. Don) stands. The stand factor was investigated based on its relation with the digitalized number (DN) on the black and white aerial ortho photos (scale 1:5,000, taken in 1995). We analyzed various stand structure factors and the distribution of DN from the image data using the Weibull function, which comforms well to every shape of distributions. Using the Weibull distribution, a significant negative correlation was observed between the quantity of stand factors (Mean DBH and the stand volume) and the distribution parameter c of DN. A significant positive correlation was also obsered between the distribution parameter c of the stand factor (DBH, height and volume) and the distribution parameter c of DN.
- 一般社団法人日本森林学会の論文
- 1999-05-16
著者
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Kamioka Hisaaki
Graduate School Of Science And Technology Niigata University
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Abe Nobuyuki
Faculty of Agriculture, Niigata University
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Abe Nobuyuki
Faculty Of Agriculture Niigata University
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