祁连山北麓不同海拔土壤化学计量特征
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高海宁, 李彩霞, 孙小妹, 张勇, 陈年来
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Stoichiometry characteristics of soil at different altitudes in the Qilian Mountains
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Haining Gao, Caixia Li, Xiaomei Sun, Yong Zhang, Nianlai Chen
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表2 土壤C、N、P含量随海拔的变化
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Table 2 Soil C, N and P concentration to the altitudes
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样点 | 土层 /cm | C /(mg·g-1) | N /(mg·g-1) | P /(mg·g-1) | 样点 | 土层 /cm | C /(mg·g-1) | N /(mg·g-1) | P /(mg·g-1) |
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P1 | 0—10 | 16.85±0.168a | 1.37±0.145a | 0.76±0.002a | P11 | 0—10 | 145.81±6.192a | 11.68±0.29a | 1.03±0.012a | 10—20 | 18.27±0.564a | 1.50±0.192a | 0.77±0.013a | 10—20 | 117.18±4.642b | 9.76±0.084b | 0.88±0.039b | 20—40 | 16.70±1.834a | 1.22±0.190a | 0.769±0.012a | 20—40 | 28.58±1.397c | 1.64±0.229c | 0.66±0.007c | P2 | 0—10 | 78.80±2.288a | 5.59±0.070a | 0.64±0.474a | P12 | 0—10 | 112.14±9.252a | 8.80±0.123a | 0.69±0.032a | 10—20 | 42.63±1.251b | 3.33±0.036b | 0.42±0.854b | 10—20 | 103.11±3.241a | 7.50±0.036b | 0.64±0.009a | 20—40 | 23.47±2.360c | 11.83±0.110c | 0.31±0.086c | 20—40 | 49.68±1.290b | 1.67±0.035c | 0.44±0.013c | P3 | 0—10 | 50.21±3.380a | 4.83±0.033a | 0.67±0.014a | P13 | 0—10 | 59.89±0.700a | 3.65±0.254a | 0.74±0.009c | 10—20 | 36.53±1.540b | 3.27±0.073b | 0.52±0.012b | 10—20 | 46.40±3.245b | 1.21±0.015b | 1.79±0.038a | 20—40 | 17.23±0.321c | 1.64±0.036c | 0.47±0.023c | 20—40 | 14.20±1.571c | 0.58±0.001c | 1.23±0.005b | P4 | 0—10 | 112.15±0.896a | 6.97±0.110a | 0.81±0.009a | P14 | 0—10 | 120.07±0.553a | 5.58±0.052a | 0.73±0.019b | 10—20 | 84.74±1.120b | 5.90±0.035b | 0.72±0.027b | 10—20 | 37.82±1.876b | 0.34±0.022b | 0.90±0.032a | 20—40 | 43.30±0.140c | 4.24±0.112c | 0.66±0.008b | 20—40 | 23.36±0.200c | 0.17±0.016c | 0.49±0.048c | P5 | 0—10 | 106.54±0.293a | 6.88±0.007a | 0.76±0.033a | P15 | 0—10 | 163.85±3.001a | 5.59±0.339a | 0.71±0.020a | 10—20 | 82.82±2.349b | 4.63±0.527b | 0.59±0.015b | 10—20 | 79.14±2.418b | 3.13±0.054b | 0.54±0.019b | 20—40 | 52.29±0.125c | 1.98±0.096c | 0.56±0.035b | 20—40 | 13.35±4.195c | 0.40±0.002c | 0.20±0.023c | P6 | 0—10 | 96.37 ±4.175a | 7.25±0.013a | 0.74±0.028a | P16 | 0—10 | 72.39±4.195a | 1.73±0.003a | 0.50±0.022a | 10—20 | 66.18 ±0.378b | 4.26±0.013b | 0.67±0.098a | 10—20 | 36.16±4.195b | 0.33±0.034b | 0.37±0.031b | 20—40 | 68.15 ±5.056b | 4.34±0.107b | 0.87±0.014a | 20—40 | 20.21±4.195c | 0.25±0.001b | 0.39±0.020b | P7 | 0—10 | 48.17±4.126ba | 4.00±0.016a | 0.83±0.025a | P17 | 0—10 | 85.60±6.081a | 3.40±0.233a | 0.44±0.036a | 10—20 | 41.34±7.925ba | 3.08±0.079b | 0.81±0.011a | 10—20 | 41.57±1.467b | 3.01±0.116a | 0.44±0.004a | 20—40 | 27.23±2.476b | 1.83±0.066c | 0.76±0.077a | 20—40 | 26.78±0.671b | 1.90±0.086b | 0.30±0.009b | P8 | 0—10 | 89.39±6.161a | 7.43±0.388a | 0.71±0.019a | P18 | 0—10 | 74.79±0.561a | 3.56±0.257a | 0.79±0.007a | 10—20 | 51.93±5.181b | 4.20±0.349b | 0.63±0.076a | 10—20 | 44.10±5.787b | 3.35±0.200a | 0.97±0.188a | 20—40 | 92.51±0.478a | 6.61±0.745a | 0.73±0.008a | 20—40 | 13.01±0.347c | 0.53±0.096b | 0.74±0.334a | P9 | 0—10 | 145.49±5.757a | 9.10±0.197a | 0.90±0.002a | P19 | 0—10 | 60.71±0.019a | 1.38±0.013a | 0.86±0.053a | 10—20 | 103.84±1.782b | 5.04±0.068b | 0.94±0.041a | 10—20 | 43.98±2.975b | 0.43±0.007c | 0.60±0.024b | 20—40 | 67.95±3.464c | 5.31±0.399b | 0.92±0.030a | 20—40 | 24.49±2.028c | 0.52±0.011b | 0.62±0.019b | P10 | 0—10 | 60.82±3.58a | 4.38±0.048a | 1.15±0.014a | | | | | | 10—20 | 45.89±2.311b | 3.52±0.088b | 1.07±0.063a | | | | | 20—40 | 43.08±0.273b | 3.51±0.161b | 1.08±0.070a | | | | |
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