Medium and high coverage of vegetation in the landscape tend to simplify and stabilize, the complexity of the overall shape is reducing small, the degree of the boundary trace complex fold.
中等和高覆盖度植被景观形状趋于简单化和稳定化，景观整体形状复杂程度在减小，边界褶皱程度有微量复杂化；
Next, vegetation index was calculated which was based on Band 3 and Band 4 of TM image, and degree of vegetation coverage was extracted according to NDVI based on the transformation model;
其次，利用TM影像的第四和第三波段计算植被指数，根据植被指数按照转换模型提取植被覆盖度；
Next, vegetation index was calculated which was based on Band 3 and Band 4 of TM image, and degree of vegetation coverage was extracted according to NDVI based on the transformation model;
其次，利用TM影像的第四和第三波段计算植被指数，根据植被指数按照转换模型提取植被覆盖度；
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