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为解决目前南方林区人工林针叶化引起的系列生态问题,发展阔叶树种造林,应用平均标准木法和样方收获法对桤木×杉木混交林各模式林分的生物量、分配比例及分布格局进行研究,结果表明:不同经营模式的林分的生物量及生产力由高到低为:行间混交、行带混交、株间混交、杉木纯林,以行间混交的乔木层生物量及生产力最高,分别为68.66(t/hm2)和6.86(t/hm·2a);混交林各经营模式的营养空间分布均比杉木纯林合理,能较好地促进林木生长。
In order to solve the series of ecological problems caused by plantation needles in the southern part of China and to develop the afforestation of broad-leaved species, the biomass and distribution proportion of different types of stands in Alnus japonica × Cunninghamia lanceolata mixed forest The results showed that the biomass and productivity of the stands in different management models were as follows: the interplastification, the intercropping, the intercropping, the pure Chinese fir plantation, the interplanting biomass And the highest productivity were 68.66 (t / hm2) and 6.86 (t / hm · 2a), respectively. The spatial distribution of nutrition in all management modes of mixed forest was more reasonable than that of pure Chinese fir plantation, which could promote the growth of forest trees.