退耕还林是一项加强自然生态环境保护的政策。本文将以贵州喀斯特地貌为例,从地貌特征、天气状况、水土保持方法、生态效益评估等方面对陡坡地退耕还林所带来的生态效益进行研究论述。陡坡地区极易因山体滑坡和泥石流等自然现象造成水土流失,退耕还林是防治陡坡地区水土流失和消除安全隐患的必要条件。 Returning farmland to forest is a policy to strengthen the protection of natural ecological environment. In this paper, the karst landform in Guizhou Province will be taken as an example to study and discuss the ecological benefits brought by the conversion of farmland to forests on the steep slopes in terms of landform features, weather conditions, soil and water conservation methods and ecological benefits assessment. Steep slopes are prone to soil and water loss due to natural phenomena such as landslides and debris flows. Returning farmlands to forests is a necessary condition for preventing soil erosion and eliminating potential safety hazards in steep slopes.