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5 土壤有机碳含量(CSOC)、密度(DSOC)与土壤因子的Pearson相关系数

Table 5 Pearson’s correlation coefficient between soil organic carbon concentration (CSOC), density (DSOC) and soil factors

项目 Item 容重 Bulk density 0.05-2 mm 砂粒百分含量 Soil sand percentage (0.05-2 mm) 0.002-0.05 mm 粉粒百分含量 Soil silt percentage (0.002-0.05 mm) <0.002 mm 黏粒百分含量 Soil clay percentage (<0.002 mm) pH TP AP C/N C/P N/P CSOC -0.678** -0.246 0.027 0.637** -0.666** 0.568** 0.727** 0.277* 0.792** 0.780** DSOC -0.551** -0.209 -0.007 0.623** -0.623** 0.564** 0.752** 0.2430 0.796** 0.811**