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清水河县在1978年以前,共造林20多万亩,大部分是乔木,灌木很少;1978年乔灌木造林各占1/2;1978～1982年共造林68万亩,其中灌木(主要是柠条)占68.4％;1982年造林22万亩,其中灌木占77％。这一转变是他们根据当地自然条件,总结多年经验教训的结果。清水河县11万人,总土地面积428万亩,其中宜农地80万亩,宜林地170万亩,宜牧地128万亩,属丘陵沟壑地区,山大沟深,年平
Prior to 1978, a total of more than 200,000 mu of afforestation was acquired in Qingshuihe County, most of which were trees with few shrubs. In 1978, afforestation of both shrubs and shrubs accounted for 1/2 of each. In 1978-1982, a total of 68 million mu of afforested forests were shrubs (mainly Caragana) accounted for 68.4%; in 1982, 220,000 mu of afforestation, of which shrubs accounted for 77%. This shift is the result of years of lessons learned from their natural conditions. Qingshuihe County, 110,000 people, the total land area of 4280000 acres, of which 800000 acres of suitable farmland, forest 1700000 acres, should be 1280000 acres of grazing land, is a hilly area, deep mountain ditch, years of peace