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应用平均标准木法和样方收获法对凹叶厚朴杉木混交林各经营模式林分的生物量、生物量组成及分布的研究结果表明：不同经营模式的林分中，以行间混交的生物量及生产力最高， 分别为７４．９６ ｔ／ｈｍ ２ 和６．２５ｔ／ （ ｈｍ ２·ａ）； 混交林各经营模式的营养空间分布均比杉木纯林合理，对林木生长有促进
The results of the biomass, biomass composition and distribution of different management modes in the mixed forest of Betulaeagus cv. Ipomoea and Betula platyphylla mixed forests showed that in different types of forest stands, the biomass And the highest productivity were 74.96 t / hm 2 and 6.25 t / (hm 2 · a), respectively. The spatial distribution of nutrition in different management modes of mixed forest was more reasonable than that of pure Chinese fir plantation, and promoted the growth of tree species