马尾松纯林林分因子对空气负离子浓度影响的研究

The Influence of Stand Factors on Aero-anion Concentration in Masson's Pine Pure Forest

在南岳衡山马尾松纯林内,设立了立地条件相类似的15个测点,测定空气负离于浓度及相应的林分因子,采用数量化理论Ⅰ模型的分析表明,树龄、郁闭度、树高为影响空气负离子浓度的主导因子,且相关系数显著。

The concentration of aero-anion and stand factors in Masson's pine pure forest in Hengshan mountains were determined at 15 different measuring points that are similar in site type. The correlations between stand factors and the concentration of aero-anion were analysed by employing the model of quantification theory-1. The results show that tree age,canopy density and tree height are the dominant factors affecting the concentration of aero-anion,and their correlations are significant.