The first category is necessary to use remote images to interpret the degree and distribution of karst rocky desertification area.
景观分类是利用遥感影像特征解译石漠化强度和分布面积所必不可少的；
The main reasons of Karst rocky desertification formation are the artificial unreasonable activities and frail ecological environment in the Karst mountainous area according to the research results.
根据喀斯特石漠化研究成果，喀斯特山区石漠化形成的主要原因是人为不合理干扰活动和喀斯特山区特有的脆弱生态环境所致。
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