基于Landsat 7 ETM+影像的大庆地区林带遥感调查

Remote Sensing Survey of Shelterbelt Based on Landsat 7 ETM+ Image in Daqing City, China

利用遥感和GIS技术 ,采用美国最新的Landsat7ETM +影像的 15m全色波段和 30m多光谱波段影像 ,对大庆地区的防护林地进行遥感调查。通过图像处理与分析得到了最佳的用于解译的影像 ,在野外调查的基础上 ,建立了林地的解译标志 ,量算了防护林带的宽度 ,查清了防护林的类型及实际面积 。

The area of the shelterbelts in Daqing region was surveyed with the help of remote sensing and GIS technique. The image was obtained from the latest sensor on America satellite Landsat7, spatial resolution of which was 30 meters in multi-spectral band and 15 meters in pan band. With the remote image process technique, the better image adapting to artificial interpretation was obtained. Based on the field survey, we established the characteristics of shelterbelts for interpretation, measured the width of each shelterbelt, acquired the length of each shelterbelt through the interpretation, and ascertained the types and actual area of shelterbelts in Daqing City, which provide the firsthand data for construction and management of protective forests.