Due to the fragile eco-environment, natural disasters are frequent in west arid zone in China.
我国西部干旱区生态环境脆弱，自然灾害频繁。
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 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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