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对鱼龙林场厚朴与杉木人工混交林分标准地的初步调查表明，林分中杉木生物量大于厚朴，比例为３．２８：１，占乔木层总生物量的７６．６％；从生长过程看杉木胸径生长大于厚朴，杉木高生长与厚朴相近，杉木材积生长始终大于厚朴。１４年生时杉木与厚朴均未达数量成熟，材积生长潜力仍很大。
The preliminary investigation on the mixed forest of Magnolia officinalis and Cunninghamia lanceolata in the Yuelong Forest Farm showed that the biomass of Chinese fir was higher than that of Magnolia officinalis in the forest stand, accounting for 3.28: 1, accounting for 76.6% of the total biomass of the tree layer. The growth of Chinese fir was larger than that of Magnolia officinalis, the growth of Chinese fir was similar to that of Magnoliaceae, but the growth of Chinese fir was always larger than that of Magnolia officinalis. Fourteen-year-old fir and Magnolia have not reached the number of mature volume growth potential is still great.