黄河泥沙冲/沉积区土壤有机碳不同组分空间特征及变异机制
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张俊华, 李国栋, 王岩松, 朱连奇, 赵文亮, 丁亚鹏
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Spatial characteristics and variation mechanism of different soil organic carbon components in the alluvial/sedimentary zone of the Yellow River
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ZHANG Junhua, LI Guodong, WANG Yansong, ZHU Lianqi, ZHAO Wenliang, DING Yapeng
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表1 不同深度土壤有机碳及其组分含量的统计特征(g/kg)
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Tab. 1 Statistical characteristics of soil organic carbon, 0-100 cm belowground(g/kg)
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指标 | 深度(cm) | 极差 | 最小值 | 最大值 | 平均值 | 方差 | 偏度 | 峰度 | TOC | 0~20 | 28.78 | 1.25 | 30.03 | 8.96±4.31 | 18.62 | 0.99 | 2.44 | 20~40 | 16.72 | 0.59 | 17.32 | 5.08±2.87 | 8.24 | 1.12 | 1.81 | 40~60 | 13.60 | 0.40 | 14.00 | 3.88±2.50 | 6.25 | 1.01 | 1.19 | 60~80 | 15.73 | 0.08 | 15.81 | 3.08±2.24 | 5.02 | 1.56 | 4.64 | 80~100 | 13.78 | 0.05 | 13.83 | 2.57±2.12 | 4.50 | 1.66 | 4.34 | AOC | 0~20 | 8.75 | 0.11 | 8.86 | 1.77±1.07 | 1.15 | 1.70 | 8.52 | 20~40 | 3.47 | 0.01 | 3.48 | 0.80±0.62 | 0.38 | 1.19 | 1.84 | 40~60 | 1.98 | 0.01 | 2.00 | 0.51±0.43 | 0.19 | 0.97 | 0.31 | 60~80 | 1.49 | 0.01 | 1.50 | 0.37±0.34 | 0.12 | 1.00 | 0.15 | 80~100 | 1.42 | 0.01 | 1.42 | 0.29±0.29 | 0.08 | 1.39 | 1.74 | NOC | 0~20 | 22.75 | 0.61 | 23.36 | 7.19±3.48 | 12.13 | 0.95 | 1.98 | 20~40 | 15.27 | 0.58 | 15.85 | 4.28±2.49 | 6.25 | 1.30 | 2.52 | 40~60 | 12.89 | 0.01 | 12.90 | 3.34±2.22 | 4.95 | 1.14 | 1.87 | 60~80 | 15.20 | 0.06 | 15.26 | 2.76±2.02 | 4.07 | 1.86 | 6.96 | 80~100 | 13.23 | 0.02 | 13.25 | 2.25±1.94 | 3.75 | 1.87 | 5.82 |
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