水稻遥感估产中的稻作分区研究

Study on the rice cultivation region division of 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。我们对县级水稻遥感估产中的稻作分区作了探索,结果表明:用常规综合分析分区法和遥感图像解译分区法,均能较好地实现稻作分区,但遥感图像解译分区法更能简易、快速地提取出稻田信息的地域规律,可以因地制宜地选用。

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. This paper made some researches in rice region division of rice estimation by remote sensing in a county. The results showed that rice cultivation region coule be divided by the methods of conventional synthetical analysis and remote sensing image interpletation. But the latter one was easier and faster. These two methods can by used conbined with local conditions.