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在定向培育纸浆林的基础上,综合长白落叶松纸浆林的工艺特性、林学特性和经济特性,确定出两个培育模式.实验表明:长白落叶松纸浆林最适宜在优良立地条件下培育.地位级越高、轮伐期越短,风险程度越小.I地位级2000株/hm~2密度下,轮伐期为18a,内部收益率和净现值分别可达24.12%和5714.56元/hm~2.Ⅱ2500株/hm~2密度下,轮伐期为21a,内部收益率和净现值分别可达19.52%和4232.33元/hm~2.
Based on the directional cultivation of pulp forest, two cultivation patterns were determined according to the process characteristics, the forestry characteristics and the economic characteristics of the P. tritici-planted pulp forest.The results showed that the P. maxima forest was the best suitable for cultivation under the fine site conditions. The higher the grade, the shorter the rotation period, the lower the risk.I grade position 2000 / hm ~ 2 density, rotation period of 18a, the internal rate of return and the net present value of up to 24.12% and 5714.56 yuan / hm ~ 2.Ⅱ2500 plants / hm ~ 2 density, rotation period of 21a, the internal rate of return and the net present value of up to 19.52% and 4232.33 yuan / hm ~ 2.