Relationship between vegetation diversity and soil functional diversity in native pine forests

In the present study, the relationship between vegetation diversity and functional diversity of soil in natural Pinus koraiensis forest of Lesser Kingan was examined. The correlations between vegetation diversity, soil physicochemical properties, soil enzyme activities and soil functional diversity were determined. The results showed that vegetation diversity was correlated with both soil enzyme activities and soil functional diversity. There were correlations between enzyme activities and plant diversity indexes for trees. Species richness index S was extremely negatively correlated with phosphatase (P0.01) and positively correlated with cellulose (P0.01). β-glucosidase was positively correlated with index Jsw (P0.05). For shrubs, cellulose and urease were positively correlated with index S(P0.05), cellulose was positively correlated with species diversity index H′(P0.05). For herbs, index S was positively correlated with β-glucosidase (P0.01) and negatively correlated with phosphatase (P0.05). Soil functional diversity index H showed a positive correlation with index S and index H′ in trees (P0.05) and showed a positive correlation with index S and index H′ in herbs (P0.01). It is suggested that vegetation diversity of natural P.koraiensis forest affect functional diversity of soil by enzyme activity, and there was a significant correlation between them.