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位于太行山中南端的平顺县留村大队,海拔900—1200米,地势起伏多变,石厚土薄,植被稀少,基岩系奥陶纪石灰岩。由于长期的植被破坏,原有土壤已被严重冲刷,岩石裸露面积约50%。未经风化的基岩则呈板状“窝石”,大面积地分布在山坡上。本区年平均气温7.8—9.8℃,无霜期150—160天,560毫米的降雨量,多集中在7、8、9月间。因此,水、土的奇缺给当地的林业生产造成极大困难。为了改变贫穷落后面貌,这个大队的群众,自
Located in the central and southern Taihang Mountains Pingshun County left the village brigade, 900-1200 meters above sea level, undulating terrain, thick stone, thin vegetation, bedrock Ordovician limestone. Due to long-term vegetation destruction, the original soil has been seriously washed, rock bare area of about 50%. Undisturbed bedrock was plate-like “Wo stone”, large-scale distribution in the hillside. The average annual temperature of 7.8-9.8 ℃ in this area, frost-free period of 150-160 days, 560 mm of rainfall, mostly concentrated in the 7, 8, September. Therefore, the water and soil shortage caused great difficulties to the local forestry production. In order to change the poor and backward, the masses of this brigade, since