基于遥感和Moran's I指数的水稻面积变化空间自相关性研究

摘要

In this study, the paddy rice planting area of Jiangsu Huai’ an area between 2011 and 2015 was obtained through remote sensing images. On the basis of township boundaries and 2 km×2 km grid, spatial correlation of the paddy rice planting area from year to year between 2011 and 2015 was analyzed by Moran�s index. The analysis showed clustering effects of the change of the paddy rice planting area in Huai’ an area. Four clusters were identified in 2012, three were i⁃dentified in 2013, and six were identified in both 2014 and 2015. The area only covers parts of administrative township.%本研究基于遥感影像获取了2011－2015年江苏省淮安区水稻面积，在乡镇区划和2 km规则网格的基础上，用Moran’ s I指数分析了2011－2015年水稻逐年空间变化的相关关系，分析结果表明，淮安区水稻面积变化有聚集现象，2012年有4个聚集区，2013年有3个聚集区，2014年和2015年有6个聚集区；聚集区仅为乡镇行政区划单元的部分区域。