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我县位于甘肃省南部,地处黄土高原,山七川三,水土流失比较严重。无产阶级文化大革命以来,我们在毛主席革命路线指引下,本着以土为首,山、水、田、林、路综合治理的原则,在植树造林运动中,以70%的林业用工从事挖山改土工作,把原来挖坑栽树、随栽随挖普遍改为反坡梯田整地造林。实践证明,反坡梯田具有控制水土流失,改善土壤理化性质,有利于树木的成活和生长,便于林粮间作和抚育管理等优点,是干旱、水土流失严重的黄土高原区造林整地的一种好方式。
My county is located in southern Gansu Province, is located in the Loess Plateau, mountain seven three, soil erosion is more serious. Since the Great Proletarian Cultural Revolution, under the guidance of Chairman Mao’s revolutionary line and based on the principle of comprehensively governing the development of the soil, mountains, water, fields, forests and roads, in the afforestation and afforestation movement, we have been engaged in the excavation of 70% of forestry workers Soil improvement work, digging the original planted with trees, with the dig generally dig into the terraces afforestation. Practice has proved that anti-slope terrace has the advantages of controlling soil and water loss, improving the soil physical and chemical properties, is conducive to the survival and growth of trees, to facilitate the intercropping of forest and tending management, etc., is a good drought and soil erosion in the Loess Plateau afforestation site the way.