Evaluation of landuse changes in the lower East-Bank area on the basis of remote-sensing
2000
Torii, Kiyoshi(Kyoto University, Kyoto (Japan). Graduate School of Agriculture) | Mori, Yoshiaki(University of Tokyo, Tokyo (Japan). Graduate School of Agriculture and Life Sciences.) | Kume, Takashi(Kyoto University, Kyoto (Japan). Graduate School of Agriculture) | Shimokouji, Katsuji(University of Tokyo, Tokyo (Japan). Graduate School of Agriculture and Life Sciences.) | Hoshikawa, Kazutoshi(Shinshu University, (Japan). Department of Agriculture) | Papant Svetanant(Chulalongkorn University, Bangkok (Thailand). Faculty of Economics) | Phaisal Lekthai(Chulalongkorn University, Bangkok (Thailand). Faculty of Economics)
Irrigation development in Chao Phraya delta started in 1952 has changed agriculture in this area greatly. It has dissolved drought damage, increased rice yields and enabled introduction of crops such as sugarcane by breaking with single crop of rice. Consequently, the yields are stabilized awakening farmers urge to work and causing a rise in price of land. Entering 1980s when Thailand started industrial development, the area from Rangsit Irrigation Project Area to the coastal area of Thai Gulf was exposed to waves of rapid industrialization resulting in marked changes in landuse and environment. We have watched long-range changes in land covers in this district using satellite images. Together with advancement in computer technology, accuracy of surface monitoring by satellite images has improved remarkably and enormous softwares having rich contents for processing them have become popular. In the present study, we re-eaxamined changes in landuse and land cover in the history of this district based on satellite images in the attempt to evaluate a large-scale irrigation system such as this in a long-term view.
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