【Key words】 karst eco-environment; evaluation on sensitivity; grading method for index; land-use types; Duyun city; Guizhou province
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Owing to the fragile eco-environment, terrain fragmentation, and serious soil erosion, the karst area in Southwest China is one of the distinct poor regions.
我国西南喀斯特地区山高坡陡，地形破碎，生境脆弱，水土流失严重，是我国典型的极贫困代表区域之一。
The Typical Karst Peak-cluster Depression Area of Northwest Guangxi Autonomous Region is an Area that is droughty, absent soil and agricultural Eco-environment deterioration.
桂西北典型峰丛洼地是一个缺水少土、汗涝灾害严重、农业生态环境十分严酷的区域。
The karst region is very fragile eco-environment with slow soil formation process, shallow and discontinuous soil, small water holding capacity, and low vegetation coverage.
喀斯特环境有成土过程缓慢、土层浅薄、土被不连续、土壤持水量低、植被覆盖率低的特点。
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