Eco-Stoichiometric Characteristics of Rhizosphere and Bulk Soils of <i>Smilax china</i> L. along Vertical Zone Spectrum of Fanjing Mountain.

Effects of Rhizosphere Effect (Rhizosphere/Bulk) and Altitude on Soil Nutrients and Stoichiometric Characteristics As shown in Table 2 , rhizosphere effect had no significant effects on TK, AK and soil pH ( p > 0.05), but a significant effect on AP ( p < 0.05) and highly significant effects on other soil nutrients and stoichiometric ratios ( p < 0.01).

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The interaction between altitude and rhizosphere effect showed extremely significant effects on SOC, TN, TP, HN, AK, C:K, N:K and p :K ( p < 0.01) and a significant effect on AP ( p < 0.05) ( Table 2 ). 3.2.

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The total soil organic carbon density on the northern slope of Mount Taibai showed a decreasing trend with the increase of the altitude gradient [ 24 ].

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With the increase in altitude, soil C:N and C:P showed a decreasing trend in the broad-leaved forest belt and changed to an increasing trend in the coniferous forest belt; N:P first rises and then falls with the increase in altitude gradient [ 25 ].

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