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水土流失、生态失调是北方山区贫穷落后的一个重要根源。坡耕地又是水土流失的重点区域。控制水土流失、改善生态环境,必须以梯田建设为中心,实行山、水、田、草、林、路综合治理,逐步实现山区生态经济良性循环。内蒙古自治区喀喇沁旗小牛群乡狮子沟村是一个半干旱土石山区。位于东经118°17′～25′,北纬41°58′～42°1′,海拔950～1,500米,年降水量,350～400mm,无霜110～120天,大于、等于10℃的有效积温2,500
Soil and water loss, ecological imbalances are an important source of poverty and backwardness in northern mountainous areas. Slope cultivated land is also a key area for water and soil loss. To control soil and water loss and improve the ecological environment, we must take the terrace construction as the center and implement the comprehensive management of mountain, water, field, grass, forest and road, and gradually realize the virtuous cycle of ecological economy in mountainous areas. Inner Mongolia Autonomous Region of Kalaqin Banner Herd Township Lion Village is a semi-arid mountainous area. Located at 118 ° 17’-25’E and 41 ° 58’-42’1’N, with an elevation of 950-1,500 meters, an annual precipitation of 350-400 mm, a frost-free period of 110-120 days and an effective accumulated temperature greater than or equal to 10 ° C 2,500