【摘要】 为研究均质经营对人工林油松树种径级结构的影响，通过以48a人工林油松为研究对象，设定标准地每木检尺调查，采用正态分布函数、Weibull分布函数、对数正态分布、Logistic分布对油松人工林林分的径级分布进行拟合，并进行χ~2检验。结果表明：油松均质和对照林分径阶结构Logistic分布拟合效果最好，但其有所差异；均质经营的油松林分径阶分布向右偏移程度大于对照林，均质经营中大径阶树木数量大于对照。均质经营对油松林分径级结构有一定影响，对油松人工林中大径材人工定向培育具有一定的指导意义。更多还原

【Abstract】 In order to study the effect of homogeneous management on the diameter-class structure of Pinus tabulaeformis plantation, a 48a plantation was selected as the research object, and the standard measuring scale per tree was set. Normal distribution function, Weibull distribution function, lognormal distribution and Logistic distribution were used to fit the diameter-class distribution of Pinus tabulaeformis plantation, and χ2 test was performed. The results showed that the Logistic distribution of uniform and control stands had the best fitting effect, but there were differences. The deviation to the right of the diameter and rank distribution in homogeneous management was greater than that in control, and the number of medium diameter and rank trees in homogeneous management was greater than that in control. Homogeneous management has a certain effect on the diameter class structure of Pinus tabulaeformis plantation and has a certain guiding significance for the artificial directional cultivation of large diameter wood in Pinus Tabulaeformis plantation.更多还原