Spot遥感影像照片在森林资源二类调查上的应用

为了提高森林资源二类调查质量，提高工作效率，辽宁省森林资源二类调查改变以往的地形图调绘、实测等传统调绘方法，利用法国Spot5遥感影像照片作为外业调绘的图面资料，结合现地调查，取得较好效果。Spot5遥感影像经PCI软件处理后具有明显特征，根据遥感影像中各地类的色调、形状、阴影、纹理、位置、大小等特征直接沿影像特征的边缘准确勾划出地类界线，即可完成森林资源二类调查野外调绘工作。大大降低了野外调绘人员的劳动强度，省时、省工、省钱。

The Use of SPOT5 Forest Sensing Picture in the 2nd Forestry Resource Survey

In order to improve the efficiency and quality of second class investigation of forest resources, a new method of using remote sensing image of spot5 as map and related information data is introduced to instead traditional methods on second class investigation of forest resources in Liaoning province. With the field investigation, it obtains good effect and is proved to be better compared with traditional methods, such as field survey, survey and mapping by relief map, and so on. After the treatment of PCI software, the remote sensing image of spot5 has obvious features. The task of survey and mapping in field operation of second class investigation of forest resources can be finished very easily by sketching boundary lines of ground objects exactly along the image edge based on characteristics of main types of ground objects, such as the color tone, the shape, shadows, textures, the position, the size, etc. Practice proves that the new method not only sharply reduces labor intensity of field mapping technicians, but also has advantages of labour - saving, time - saving and low - cost.