In this study, the construction units of information. Using the GIS data, create a closed space (Polygon) size 0.1 x 0.1 degrees, in which each grid is covered an area of 11.11 x 11.12 kilometers. But due to the area, the area is rice. Therefore, to isolate the rice area from the area uses other by the information of land use land development. Years 2550 overlap with units built. Which to choose specific units that overlap with rice area of more than 50% to select area. Representative rice area.
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