30年生马尾松纯林混交改造对土壤养分的影响

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中图分类号：S756 文献标识码：Adoi：10.13601/j. issn.1005—5215.2025.04.003

Effects of Mixed Transformation of 3O-year-old Pinus massoniana Pure Forest on Soil Nutrients

Wang Sirong，Yan Yanbing，Ding Xinlan，Guo Yujie，Fu Xiyi （Baisha State-owned Forest Farm，Shanghang County，Fujian Province，Longyan 3642O5，China）

AbstractTo provide scientific basis for the transformation and management of Pinus massoniana artificial pure forest.Eight kindsofconiferous and broad-leaved mixed forests of Pinus massoniana were planted in Baisha Stateowned Forest Farm in Shanghang County of Fujian Province. The pure forest of Pinus masoniana was used as the control. The mass fraction of soil pH and organic matter，total nitrogen（N），hydrolyzed nitrogen（N），total phosphorus（P） and available ΔP in each plot were measured. The characteristics of soil nutrient changes in Pinus massoniana pure forest and mixed forest were analyzed and compared.The results showed that there was a significant difference in the mass fraction of soil nutrient between the mixed forest and the pure forest after transformation （ P<0.05） 。（剩余7969字）