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通过八年杉木针阔混交林的综合定位研究,筛选出一种高生产力和生态协调的人工林——以8杉木2火力楠为优势的混交林。林分的蓄积量和乔木层贮存的能量分别比杉木纯林高13.7%和11.3%,杉木火力楠混交林提高了林分的光能利用率,改善了林内小气候;增加了林地有机质的含量;促进了土壤中有益微生物的繁衍和土壤理化性质的改良,提高了土壤肥力和蓄水保水能力;增强了林分对害虫自我抑制能力。
Through eight years of comprehensive research on the coniferous and broad-leaved fir plantation, a high productivity and ecological coordinated plantation was screened out - a mixed forest dominated by 8 Chinese fir. The stock volume of the stand and the energy stored in the tree layer were 13.7% and 11.3% higher than that of the pure Chinese fir plantation respectively. The mixed forest of C. fortunei and C. angustifolia increased the utilization of solar energy, improved microclimate in the forest, increased the content of organic matter in the forestland, Promoted the multiplication of beneficial microorganisms in soil and the improvement of physical and chemical properties of soil, improved soil fertility and water storage and water retention capacity, and enhanced the ability of stand to control insect pests self-restraint.