亚热带人工林乔灌草根际土壤氮矿化特征
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Characteristics of soil nitrogen mineralization in the rhizosphere of trees, shrubs, and herbs in subtropical forest plantations
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图4. 亚热带人工林土壤化学和微生物性质在根际土壤净氮矿化速率、净铵化和净硝化速率变异中的相对贡献。每个椭圆表示由土壤化学性质或土壤微生物性质能解释的变异百分比。椭圆重叠部分表示土壤化学性质和土壤微生物性质共同解释的比例。*表示影响显著(p < 0.05), **表示影响极显著(p < 0.01)。 |
Fig. 4. Relative importance of soil chemical and soil microbial properties in determining the variation in net nitrogen mineralization rate, net ammonification rate, and net nitrification rate of the rhizosphere soil in subtropical forest plantations. Each ellipse represents the percentage of the variations explained by soil chemical properties or soil microbial properties. The overlap of two ellipses represents the variation jointly explained by soil chemical and microbial properties. *indicates a significant effect (p < 0.05), ** indicates a highly significant effect (p < 0.01). |
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