摘要
为获取较精确的县域范围内小麦种植区面积,利用空间分辨率较高的Landsat卫星遥感影像和DEM数据,以河北省唐山市玉田县为例,采用决策树方法对地物进行分类,提取了2004年、2009年、2014年的冬小麦种植面积;并根据分类结果生成各年份玉田县的小麦种植信息结果图,分析了近10 a玉田县冬小麦种植面积变化情况。
In order to obtain the accurate area of winter wheat planting at county level, based on the Landsat satellite imageries with high spatial resolution and DEM data, taking Yutian County, Tangshan City, Hebei Province as the research area, we used the decision tree method to classify the surface features, and extracted the winter wheat planting area in 2004, 2009 and 2014. And then, based on the classification results, we generated the winter wheat planting information map in Yutian County, and analyzed the area changes of winter wheat in Yutian County in nearly 10 years.
出处
《地理空间信息》
2018年第9期85-86,98,共3页
Geospatial Information
关键词
NDVI
决策树
遥感影像
NDVI； decision tree； remote sensing image
