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以台江县马尾松工业用材定向培育试验林体系8年生林分的现实蓄积量、龙里林场造林密度试验林13年生林分的现实蓄积量和生物量为基础,结合各项试验林造林经营的实际费用发生额,用动态分析方法对各个试验林分的立木价值进行初步的经济效益评价分析。结果表明,在我省东南部及中部地区,选择坡中部和中、下部立地类型组造林地,选用广西古蓬或桐棉种源育苗,造林初植密度在每公顷4995~10000株之间,采用块状中穴整地,苗木栽植前每株可施60g钙镁磷肥作为底肥,有条件时,造林第2年的5~7月每株施30g复合肥作为追肥,是马尾松工业用材林在经济上较优的栽培模式。
Based on the actual stock volume of 8-year-old stand of directional forest cultivation system of Pinus massoniana plantation in Taijiang County and the actual stock volume and biomass of 13-year stand of plantation density test forest in Longli Forest Farm, Of the actual cost of the amount of the dynamic analysis of the method of stand test stand value of the preliminary economic evaluation. The results showed that in the southeastern part of our province and in the middle part of the province, the afforestation land in the middle slope and middle and lower part of the slope was selected, and the seedlings were planted in Guibei or Tongmian provenance. The initial planting density was 4995 ~ 10000 per hectare, The use of block in the hole site preparation, before planting seedlings per plant can be applied 60g of calcium magnesium phosphate as a base fertilizer, when conditions, afforestation in the first two years of May to July 30g compound fertilizer per plant as topdressing, Pinus massoniana plantation in the economy On the better cultivation mode.