杉木不同造林技术措施试验报告

An Experiment Report on Different Afforestation Techniques and Measure of Chinese Fir

在罗平县江外林场进行杉木不同造林技术措施试验。试验表明，全垦整地，全面松土抚育（Ａ１）及施肥（Ｂ１）是促进杉木幼林速生丰产的重要因素，显著性检验分别为Ｆ＝３８．４４、１３．２５＞Ｆ（０．０１）＝１０．５６。Ａ１Ｂ１组合较之Ａ２Ｂ２组合４年生幼林（不包括苗龄）平均材积生长大５．２２倍。根据试验结果及现行造林投入水平得出Ａ１Ｂ１Ｃ２Ｄ２的优化组合造林模式在生产上是可行的。）

The experiments on different afforestation techniques and measure of Chinese fir have been done in Jiangwai Forest Farm of Luoping County. The test showed that the whole reclamation soil preparation,the whole loosening the soil intermediate (A_1) and fertilization (B_1) are the key factors to promote rapid-growth and high-yield of Chinese fir sapling forest, significant test results is F=38. 44, 13.25> F(0.01)=10.56 respectively. A1B1 combination is 5. 22 times greater than A_2B_2 combination in the volume increment of 4-year-old sapling forest. According to the test results and input level of afforestation in operation, a conclusion was drawn, that is the optimization afforestation type of A1B1C_2D_2 is feasible in production.