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2 南亚热带森林土壤不同形态磷(P)含量间的相关系数

Table 2 Correlation coefficients among concentrations of different soil phosphorus (P) fractions in south subtropical forests

	AP	NH₄Cl-Pi	Al-Pi	Fe-Pi	Ca-Pi	O-Pi	Al-Po	Fe-Po
NH₄Cl-Pi	0.668^**
Al-Pi	0.852^**	0.402
Fe-Pi	0.916^**	0.690^**	0.865^**
Ca-Pi	0.536^*	0.494^*	0.556^*	0.661^**
O-Pi	0.738^**	0.417	0.810^**	0.754^**	0.428
Al-Po	0.667^**	0.421	0.569^*	0.667^**	0.136	0.717^**
Fe-Po	0.676^**	0.215	0.789^**	0.743^**	0.394	0.773^**	0.609^**
O-Po	0.022	0.007	0.052	0.227	0.217	-0.044	0.129	0.283