抄録
This paper describes the geographical investigation of land cover classification and its changes in the central part of the Kanto Plain using Landsat data. At first, land cover classification was observed by visual interpretation of color composite images, the principal component images from multi-temporal Landsat images, and land cover classification analysis using Landsat data. Secondly, geographical distribution and detailed change of land cover were investigated by comparing land cover trend surfaces from Landsat data with land productivity trend surfaces from agricultural grid data. Furthermore, the validity of trend surface analysis and comparison of Landsat data with digital national land information were investigated.
Conclusions of this study are shown as follows.
1) The correspondence of land cover conditions with geomorphological conditions was shown by the visual interpretation of Landsat false color composite images and a TM principal component image.
2) In the land cover classification using Landsat data, the increase of urbanization land cover was shown in the southern part of study area and along the railroad.
3) Land cover change images and urbanization trend surfaces indicated that the residential development of the 1970's increased on terrace and the large scale residential development of the 1980's increased on lowland.
4) By using the trend surface analysis, the condition of urbanization was made clear and the validity of trend surface fitting for land cover classification was confirmed.
5) The land cover information from Landsat data is comparable with the digital national land information and is very useful in regional analysis of quantitative geography.
