前言兰州地区处于我省中部干旱地区西侧,气候严酷,土壤贫瘠,植被稀少,水土流失严重,自然条件恶劣。据统计,兰州南北两山荒山面积三十七万亩,至目前,已完成绿化造林七万余亩,主要是前山山面上水造林实现的。其余大部分(仅后山就有25万亩)是不可能提水造林的地方,干旱造林的任务十分艰巨,难度很大。解决这类荒山荒地在 Preface Lanzhou is located in the western part of the arid area in the central part of our province, with harsh climate, poor soil, scarce vegetation, serious soil erosion and poor natural conditions. According to statistics, there are 370,000 mu of barren hills in both north and south of Lanzhou. So far, more than 70,000 mu of afforestation has been completed, mainly due to the afforestation achieved by Shenshui Mountain in Qian Shan. Most of the rest (only 250,000 mu in the back of the mountain) is impossible to raise water for afforestation. The task of aiding afforestation is arduous and difficult. Solve such barren mountain wasteland