黄河三角洲盐碱地信息遥感提取及动态变化分析——以山东垦利县为例

Dynamic change and remote sensing information extraction of saline land in the yellow river delta ——A case study in Shandong Kenli County

通过对山东省东营市垦利县2000年、2014年的Landsat TM遥感影像图进行监督分类和处理，提取了垦利县盐碱地信息，在此基础上对垦利县14年间的盐碱地动态变化以及影响其变化的驱动力进行了分析。结果表明：2000～2014年期间盐碱地总体面积减少，轻盐碱地面积有了大幅度的增加，而重盐碱地的比重在降低。轻盐碱地与重盐碱地、盐碱地与非盐碱地之间发生着类型转化。轻盐碱地的主要转出类型为水体、林草地和建筑用地；轻盐碱地的转入主要来源于耕地和重盐碱地。重盐碱地的主要转出类型为水体、轻盐碱地和建筑用地；重盐碱地的转入主要来源于耕地和建筑用地。

Through the supervision and classification of remote sensing image drawing of 2000, 2014 years in Kenli County in Dongying City, Shandong Province, and the Kenli County saline information were extracted. On the basis of the dynamic changes of saline 14 years of Kenli County, the driving force of the dynamic changes was analyzed. The results showed： 2000 - 2014 periods to reduce the overall area of saline, light saline area has significantly increased, while reducing the proportion of heavy saline. Light saline and alkaline lands, between the saline and non-saline with type conversions. Light Saline major roll-out type of water, forest and grassland and building land; Severe Saline major roll-out type of water, light saline land and building land; Severe Saline transferred mainly from farmland and building land.