阿里荒漠区土壤有机碳分布特征及其与土壤物理性质的关系
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史尧方, 薛娴, 尤全刚, 彭飞, 黄翠华
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Distribution characteristics of soil organic carbon and its relationship with soil physical properties in Ali Desert Area, Tibetan Plateau
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Yaofang Shi, Xian Xue, Quangang You, Fei Peng, Cuihua Huang
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表4 不同荒漠类型下各土层深度土壤物理性质
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Table 4 Soil physical properties in different soil depths of different deserts
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荒漠类型 | 土层/cm | 容重/(g?cm-3) | 含水量/% | 砂粒/% | 粉粒/% | 黏粒/% |
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荒漠草原 | 0~20 | 1.34±0.15b | 11.42±1.96a | 19.21±0.21e | 77.21±0.09a | 3.57±0.11a | 20~40 | 1.39±0.15b | 7.43±0.36b | 23.53±1.25d | 73.26±1.17b | 3.20±0.09b | 40~60 | 1.47±0.10ab | 5.54±0.53c | 29.30±0.28c | 68.01±0.07c | 2.68±0.22c | 60~80 | 1.52±0.08ab | 4.01±0.22d | 35.64±3.76b | 62.58±3.48d | 1.76±0.29d | 80~100 | 1.63±0.08a | 2.49±0.32e | 64.72±4.56a | 34.42±4.50e | 0.85±0.08e | 草原化灌木荒漠 | 0~20 | 1.44±0.13b | 7.50±0.94a | 37.77±6.83d | 59.56±6.30a | 2.65±0.60a | 20~40 | 1.52±0.07ab | 6.10±0.08b | 56.72±3.09c | 41.67±2.98b | 1.60±0.11b | 40~60 | 1.57±0.04ab | 4.29±0.35c | 63.84±0.05b | 34.86±0.03c | 1.29±0.02b | 60~80 | 1.64±0.10a | 3.22±0.24d | 64.80±0.40b | 34.06±0.35c | 1.13±0.05bc | 80~100 | 1.68±0.13a | 2.59±0.07d | 81.63±4.71a | 17.68±4.41d | 0.67±0.43c | 半灌木-矮半灌木荒漠 | 0~20 | 1.47±0.10b | 1.95±0.20b | 78.52±1.52c | 20.75±1.43a | 0.26±0.20a | 20~40 | 1.49±0.08b | 2.60±0.82ab | 83.70±1.96c | 15.81±1.92b | 0.48±0.06a | 40~60 | 1.55±0.11ab | 1.55±0.03c | 85.63±0.09b | 14.10±0.04b | 0.25±0.06a | 60~80 | 1.58±0.12ab | 3.34±1.50a | 89.18±0.82b | 14.93±0.79c | 0.60±0.32a | 80~100 | 1.67±0.05a | 0.62±0.21d | 92.75±1.79a | 10.66±1.66d | 1.18±2.24a | 无植被区域 | 0~20 | 1.53±0.09b | 0.79±0.06c | 79.91±0.70d | 19.27±0.46a | 0.06±0.05c | 20~40 | 1.51±0.20b | 0.59±0.01d | 86.23±1.35c | 13.36±1.33b | 0.21±0.03c | 40~60 | 1.62±0.09ab | 2.01±0.17b | 88.84±0.69b | 10.83±0.68c | 0.32±0.01b | 60~80 | 1.67±0.06ab | 1.43±0.21a | 90.16±0.45b | 9.62±0.42c | 0.80±0.24a | 80~100 | 1.77±0.08a | 0.41±0.02d | 93.05±1.31a | 6.87±1.28d | 0.39±0.02b |
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