中亚热带植被恢复对土壤有机碳含量、碳密度的影响

辜翔,张仕吉,刘兆丹,李雷达,陈金磊,王留芳,方晰

Effects of vegetation restoration on soil organic carbon concentration and density in the mid-subtropical region of China

GU Xiang,ZHANG Shi-Ji,LIU Zhao-Dan,LI Lei-Da,CHEN Jin-Lei,WANG Liu-Fang,FANG Xi

表4 土壤有机碳含量(C_SOC)、密度(D_SOC)与植被因子的Pearson相关系数

Table 4 Pearson’s correlation coefficient between soil organic carbon concentration (C_SOC), density (D_SOC) and vegetation factors

项目 Item	植物多样性指数Species diversity index	群落总生物量 Community total biomass	地上部分生物量 Aboveground biomass	根系生物量 Root biomass	凋落物层现存量 Existing biomass in litter layer	凋落物层C含量 C concentration in litter layer	凋落物层N含量 N concentration in litter layer	凋落物层P含量 P concentration in litter layer	凋落物层C/N比 C/N ratio in litter layer	凋落物层C/P比 C/P ratio in litter layer	凋落物层N/P比 N/P ratio in litter layer
C_SOC	0.293^*	0.479^**	0.473^**	0.478^**	0.456^**	0.162	0.459^**	0.378^**	-0.240	-0.279^*	-0.070
D_SOC	0.326^*	0.476^**	0.468^**	0.495^**	0.470^**	0.102	0.496^**	0.424^**	-0.318^*	-0.348^*	-0.083