southwest China karst mountain area 西南喀斯特山区
the karst mountain area 喀斯特山区
poor karst mountain area 贵州喀斯特贫困山区
Guizhou karst mountain area 贵州喀斯特山区
southwest karst mountain area 西南岩溶山区
Chongqing karst mountain area 重庆岩溶山区
karst mountain area guizhou province 贵州岩溶山区
Karst Plateau Mountain Area 喀斯特高原山区
The unique hydrogeology, soil and vegetation in karst mountain area are the major natural factors of it's serious erosion of water and soil.
岩溶山地独特的水文地质、土壤、植被等是其严重水土流失的主要自然因素。
In the course of tunnel construction in karst mountain area, huge karst cave with water is the important factor for karst water and mud inrush disaster.
岩溶山区隧道施工过程中，大型充水溶洞是造成隧道突水突泥事故的重要因素。
By combining the special natural conditions in karst mountain area, the necessity and importance in strengthen the research on soil tillage erosion is put forward.
本文还结合岩溶山区特殊的自然环境条件，提出了加强岩溶山区土壤耕作侵蚀研究的必要性和重要意义。
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