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3 南亚热带森林土壤不同形态磷(P)与有效磷含量的通径分析

Table 3 Path analysis of concentrations of different soil phosphorus (P) fractions to available P concentration in south subtropical forests

因子 Factor 直接通径系数 Direct path coefficient 间接通径系数 Indirect path coefficient X1→Y X2→Y X3→Y X4→Y X5→Y X6→Y X7→Y X8→Y X1→ 0.166 0.138 0.384 -0.022 -0.065 0.056 -0.012 -0.001 X2→ 0.343 0.067 0.481 -0.025 -0.126 0.076 -0.045 -0.008 X3→ 0.556 0.115 0.297 -0.030 -0.118 0.089 -0.042 -0.035 X4→ -0.045 0.082 0.191 0.378 -0.067 0.018 -0.022 -0.033 X5→ -0.156 0.069 0.278 0.419 -0.019 0.096 -0.044 0.007 X6→ 0.134 0.070 0.195 0.371 -0.006 -0.112 -0.035 -0.020 X7→ -0.057 0.035 0.271 0.413 -0.018 -0.121 0.082 -0.044 X8→ -0.154 0.001 0.018 0.126 -0.010 0.007 0.017 -0.016