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二十多年的造林实践证明,华山松是我场较能适应的主要造林树种,为了总结华山松造林的适宜密度问题,我们于今年五月至八月,对全场二万七千亩华山松的各种造林密度类型,以及现有不同密度下的14—16生年华山松人工林的生长情况进行了全面调查研究,九月底,通过对选出的几种主要密度类型进行了测定,并同时在友邻场(化作林场)作了对比验证,初步得出以下结果。
For more than two decades of afforestation practice, it is proved that Huashan pine is the most suitable afforestation species in our field. In order to summarize the suitable density of Pinus armandii afforestation, from May to August this year, Various types of afforestation density, as well as the existing density of 14-16 annual growth of Pinus armandi plantation conducted a comprehensive survey of the growth by the end of September, by the selection of several major types of density were measured and At the same time in the neighboring neighborhood (into a forest farm) made a comparative verification, the initial results of the following.