增温对南亚热带森林土壤磷形态的影响及其对有效磷的贡献

蒋芬, 黄娟, 褚国伟, 程严, 刘旭军, 刘菊秀, 列志旸

Effects of warming on soil phosphorus fractions and their contributions to available phosphorus in south subtropical forests

JIANG Fen, HUANG Juan, CHU Guo-Wei, CHENG Yan, LIU Xu-Jun, LIU Ju-Xiu, LIE Zhi-Yang

表1 基于双因素方差分析结果得到的增温和土层及其交互作用对南亚热带森林土壤不同形态磷(P)含量的影响

Table 1 Results (p values) of two-way ANOVA about the effects of warming, soil layer and their interactions on concentrations of different soil phosphorus (P) fractions in south subtropical forests

NH4Cl-Pi Al-Pi Fe-Pi Ca-Pi O-Pi Al-Po Fe-Po O-Po Pi Po Pt W 0.487 0.473 <0.01 <0.05 0.571 0.794 0.264 0.076 <0.05 0.093 <0.05 L <0.05 <0.01 <0.001 0.067 <0.01 <0.01 <0.01 0.855 <0.001 <0.05 <0.001 W × L 0.740 0.942 0.963 0.270 0.817 <0.05 0.690 0.737 0.986 0.667 0.814