FIGURE 5.

Relationship between P. kansuensis and other plant functional groups in terms of AGB (A,C,E,G) and BGB (B,D,F,H) in the second growing season after fertilization. Total BGB of other functional groups from the same soil core were pooled together for analysis, as it was not possible to separate the roots. Data was log-transformed (ln) before analysis to meet the assumptions of the analysis. G, graminoids; F, forbs; L, legumes. Fertilization regimes: CK, unfertilized control; LN, fertilized with lower nitrogen level; HN, fertilized with higher nitrogen level; P, fertilized with phosphorus.