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。
2
Karst cave, an important component of karst geomorphology, is formed by geological agent corrosion, erosion and collapse.
喀斯特洞穴是喀斯特地貌的重要组成部分，在地质营力溶蚀，侵蚀和崩塌作用下形成。
3
Based on the analysis and study on the physical properties of karst soil in Guizhou Wujiang river basin in different type of vegetation and different degree of erosion.