林下山参生长指标与土壤性状的灰色关联度和通径分析

Grey correlation and path analyses for soil character and growth indicators of ginseng under forest

应用灰色关联度和通径分析方法对长白山地区林下山参地上部分8个生长指标与16个土壤性状因子之间进行了关联分析。经灰色关联度分析得出了林下山参生长指标与土壤性状的关联序;通径分析得出了林下山参生长指标与土壤性状因子的关联趋同。结果表明,土壤全硫和有效锌是林下山参成活与生长的重要限定性因子。因此,生产中可通过提高林下土壤中全硫和有效锌的含量来增加林下山参的保存率并促进林下山参生长。

The relationship between 8 aboveground growth indicators of ginseng under forest and 16 soil characters in Changbai Mountain was investigated with the methods of grey correlation and path analyses.The correlation sequence between ginseng growth and soil characters was obtained by grey correlation analysis,and the associated with convergence between the growth indicators of ginseng under forest and soil characters was found by path analysis.The results showed that the percentage of total sulfur and effective participation of zinc on the growth indicators of ginseng under forest are positive,can effectively increase the survival rates of ginseng under forest and promote growth of it.Therefore,the production can improve the forest soil in the concentration of total sulfur and zinc to improve the survival rates of ginseng under forest and promote growth.