2010年,河北省滦平县在京承公路沿线栽植了8000亩地的常绿乔木油松和侧柏,面积核实率和造林成活率均在95%以上。如此高的面积核实率和造林成活率基于以下几方面原因:一是投资额度比较高。每亩油松(大苗)投资5000元,每亩侧柏(大苗)投资4500元。二是造林方式得当。当年造林成活率达95%以上,拨款60%;第二年造林成活率在95%以 In 2010, Luanping County, Hebei Province, planted 8000 hectares of evergreen arborvitae pine and Platycladus orientalis along the Jingcheng Highway. The area verification rate and afforestation survival rate were above 95%. Such a high area verification rate and afforestation survival rate are based on the following reasons: First, the investment quota is relatively high. Pine oil per acre (big seedlings) 5,000 yuan investment, arborvitae (Miao) investment 4,500 yuan. Second, afforestation properly. In the same year, the survival rate of afforestation was above 95% and the allocation was 60%. The afforestation survival rate in the second year was 95%