Rice cultivation area and yield level have some regional rules. It is necessary to divide the rice regions to improve the precision fo rice estimation by remote sensing.
水稻分布面积和单产水平具有一定的地域规律，为了提高水稻遥感估产精度，有必要作稻作分区的预处理。
Rice cultivation area and yield level have some regional rules. It is necessary to divide the rice regions to improve the precision fo rice estimation by remote sensing.
水稻分布面积和单产水平具有一定的地域规律，为了提高水稻遥感估产精度，有必要作稻作分区的预处理。
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