with the method of representative investigation and site-specific observation, the effects of different vegetations on water and soil conservation in mengshan mountain were investigated on three aspects : soil melioration, entironment improvement and water and soil conservation 摘要采用典型调查和定位观测的方法,分别从改良土壤、改善环境和保特水土3方面,对蒙山不同植被下水土保持效果进行了调查。