湖南东部植被恢复对土壤有机碳矿化的影响
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辜翔,张仕吉,刘兆丹,李雷达,陈金磊,王留芳,方晰
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Effects of vegetation restoration on soil organic carbon mineralization in the east of Hunan, China
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GU Xiang,ZHANG Shi-Ji,LIU Zhao-Dan,LI Lei-Da,CHEN Jin-Lei,WANG Liu-Fang,FANG Xi
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表4 土壤有机碳累积矿化量(Cm)、土壤有机碳矿化率(Cm/SOC)与植被因子的Pearson相关系数
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Table 4 Pearson correlation coefficient between soil organic carbon (SOC) cumulative mineralization (Cm), the percentage of Cm to SOC content (Cm/SOC) and vegetation factors, respectively
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项目 Item | 植物多样 性指数 Species diversity index | 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 木质素含量 Lignin concentration in litter layer | 凋落物层 C:N The ratio of C to N in litter layer | 凋落物层 C:P The ratio of C to P in litter layer | 凋落物层 N:P The ratio of N to P in litter layer | Cm | 0.625* | 0.818** | 0.897** | 0.539 | 0.269 | 0.669* | 0.640* | 0.397 | 0.098 | -0.287 | -0.490 | Cm/SOC | -0.057 | -0.150 | -0.082 | -0.075 | 0.051 | 0.171 | 0.137 | 0.016 | 0.010 | -0.027 | -0.155 |
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