湖南东部植被恢复对土壤有机碳矿化的影响

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 mineralization in the east of Hunan, China

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

表3 湖南东部不同植被恢复阶段土壤有机碳矿化速率拟合

Table 3 Fitting of soil organic carbon (SOC) mineralization rate with incubation time using the reciprocal equations at different restoration stages in the east of Hunan Province

土层深度 Soil layer (cm) 恢复阶段 Restoration stages 回归方程 Regression equation R2 F p 土层深度 Soil layer (cm) 恢复阶段 Restoration stages 回归方程 Regression equation R2 F p 0-10 LVR y= 0.023/x + 0.002 0.901 100.517 0 20-30 LVR y = 0.018/x + 0.000 0.866 71.259 0 LCQ y = 0.053/x + 0.008 0.970 356.194 0 LCQ y = 0.021/x + 0.002 0.945 187.261 0 PLL y = 0.056/x + 0.009 0.985 747.054 0 PLL y = 0.027/x + 0.002 0.982 602.893 0 LAG y = 0.121/x + 0.018 0.978 496.637 0 LAG y = 0.033/x + 0.005 0.987 821.403 0 10-20 LVR y = 0.022/x + 0.001 0.918 123.038 0 30-40 LVR y = 0.018/x - 1.878E-6 0.875 76.822 0 LCQ y = 0.026/x + 0.002 0.979 504.574 0 LCQ y = 0.018/x + 0.001 0.886 85.189 0 PLL y = 0.029/x + 0.003 0.976 455.176 0 PLL y = 0.026/x + 0.002 0.967 318.004 0 LAG y = 0.039/x + 0.006 0.949 203.566 0 LAG y = 0.036/x + 0.004 0.954 228.325 0