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根据闽北地区的自然条件,营林水平和杉木生产习惯,分别不同地位指数级和培育目标,设计了六种杉木组装造林模式,分别提出了不同的营林技术措施和生长量。从1987年开始,五年共造林2000亩。各种造林模式早期（3～4年）的生长尚无显著差异;树高生长的标准差在0.5～1.0m范围,变异系数大小相差8％,而胸径生长的标准差为1～2cm,变异系数在20～30％的范围。文章提出为维护地力,应着手研究少耕或免耕的“生态经济型”的载杉新模式。
According to the natural conditions, the level of forest management and the production habits of Chinese fir in northern Fujian, six indexes of different status indexes and cultivation objectives were designed. Six different afforestation modes were set up, and different technical measures and growing amount were proposed. Since 1987, a total of 2000 acres of afforestation in five years. There was no significant difference in the growth of various afforestation models in the early stage (3-4 years); the standard deviation of tree height growth was in the range of 0.5-1.0 m, the coefficient of variation was 8%, and the standard deviation of DBH growth was 1-2 cm. The coefficient is in the range of 20 to 30%. The article puts forward that in order to maintain the soil fertility, we should study the new model of “eco-economy” with less or no tillage.