基于Landsat8 OLI数据的山东省耕地信息提取研究

Extraction of Cultivated Land Information in Shandong Province Based on Landsat8 OLI Data

为了探讨美国最新发射的陆地卫星Landsat8 OLI影像在耕地信息提取方面的效果,为了解该影像的应用潜力提供一些信息,采用遥感图像处理软件ENVI,对覆盖山东省区域的12幅Landsat8 OLI影像进行了计算机校正和增强处理,通过目视解释、监督分类和非监督分类交互式的分类方法提取山东省的耕地信息。结果表明,基于Landsat8 OLI数据提取耕地信息适宜波段是543波段和652波段组合,提取精度达到91.8%,Landsat8 OLI数据可以满足耕地利用及管理中对耕地信息适时获取的要求。

In order to investigate the effect of the extraction of cultivated land and provide some information for the application of the image, by making use of the image data of Landsat80LI newly launched by the United States, we conduct computer correction and enhancement for the 12 Landsat80LI images of Shandong Province through the adoption of ENVI （a remote sensing image processing software）. The study was carried out with interactive classification method by visual interpretation, supervised and unsupervised classification method to extract information of cultivated land in Shandong Province. The results showed that the combination of Band 5, 4, 3 and Band 6, 5, 2 of Landsat80LI data was suitable for extract information of cultivated land. The extraction accuracy was 91.8%. Landsat80LI data could meet the requirements of timely access to information of cultivated land in cultivated land use and management.