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连续３年的定位观察和测定结果表明，杉木———三桠套种经营模式林空间结构合理，对环境资源的利用较纯杉木和纯三桠林充分；林分内小气候条件的改变在一定程度上有利于三桠的生长；林内土壤理化性质的改善使得三桠和杉木能够获得较理想的土壤条件。人总体上看，这种经营模式具有较好的生态学基础
The result of 3-year positioning observation and measurement showed that the spatial structure of the plantation of Cunninghamia lanceolata-sanchu was reasonable and the utilization of environmental resources was more adequate than that of pure Chinese fir and pure Chinese fir plantation. The changes of microclimate conditions in the stand were to a certain extent On the improvement of the physical and chemical properties of the soil in the forest, it is possible to obtain better soil conditions for the Chinese clover and Chinese fir. Overall, people have a better ecological basis for this business model