图2. 湖南东部不同植被恢复阶段土壤有机碳矿化速率。LVR, 檵木-南烛-杜鹃灌草丛; LCQ, 檵木-杉木-白栎灌木林; PLL, 马尾松-柯-檵木针阔混交林; LAG, 柯-红淡比-青冈常绿阔叶林。不同字母表示同一培养时间同一土层不同植被恢复阶段之间差异显著(p < 0.05)。

Fig. 2. Soil organic carbon (SOC) mineralization rate at different vegetation restoration stages in the east of Hunan Province. LVR, Loropetalum chinense-Vaccinium bracteatum-Rhododendron mariesii scrub-grass-land; LCQ, Loropetalum chinense-Cunninghamia lanceolata-Quercus fabri shrubbery; PLL, Pinus massoniana-Lithocarpus glaber-Loropetalum chinense coniferous-broad leaved mixed forest; LAG, Lithocarpus glaber-Cleyera japonica-Cyclobalanopsis glauca evergreen broad-leaved forest. Different letters indicate significant differences among different vegetation restoration stages in the same soil layer at the same time of incubation (p < 0.05).