西南喀斯特石漠化环境适生植物构树细根、根际土壤化学计量特征

胡琪娟, 盛茂银, 殷婕, 白义鑫

Stoichiometric characteristics of fine roots and rhizosphere soil of Broussonetia papyrifera adapted to the karst rocky desertification environment in southwest China

HU Qi-Juan, SHENG Mao-Yin, YIN Jie, BAI Yi-Xin

表4 细根(FR)与根际土壤(RS)的养分含量及C、N、P计量特征的相关系数

Table 4 Correlation coefficient between C, N, P and their ratios in fine roots (FR) and their values in rhizosphere soil (RS)

项目 Item RS C RS N RS P RS K RS Ca RS Mg RS C:N RS C:P RS N:P FR C 0.542** 0.295** 0.039 -0.153 -0.313** -0.510 0.480** 0.467** 0.148 FR N -0.261** -0.380** -0.215* -0.004 -0.045 -0.144 -0.146 -0.092 0.033 FR P -0.231** -0.176* 0.198* 0.181* 0.142 0.018 -0.191* -0.438** -0.399** FR K -0.143 -0.190 0.079 0.117 0.064 -0.037 -0.055 -0.174* -0.193* FR Ca 0.080 0.133 0.208* 0.150 0.207* 0.356** 0.037 -0.154 -0.190* FR Mg -0.034 0.021 0.084 -0.254** 0.105 0.188* -0.117 -0.160* -0.078 FR C:N 0.467** 0.373** 0.122 -0.132 -0.142 0.001 0.368** 0.342** 0.081 FR C:P 0.413** 0.226** -0.154 -0.251* -0.191* -0.045 0.381** 0.548** 0.361** FR N:P -0.051 -0.231** -0.448** -0.155 -0.136 -0.145 0.048 0.346** 0.459**