沿海滩涂围垦区土壤质量演变研究——以江苏省如东县为例
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王琪琪, 濮励杰, 朱明, 李建国, 张濛
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Soil Quality Evolution in Coastal Reclamation Zones:A Case Study of Rudong County of Jiangsu Province
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Qiqi Wang, Lijie Pu, Ming Zhu, Jianguo Li, Meng Zhang
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表1 研究区耕层土壤属性特征 |
Table 1 The surface soil properties in the study area |
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指标 | 未围垦 | 10 a | 30 a | 40 a | 60 a | 组间均方 | 组内均方 | F值 | | WC(%) | 31.51±0.98b | 26.48±2.52a | 23.84±2.73a | 26.17±3.67a | 25.97±2.94a | 52.15 | 8.59 | 6.07 | 0.00 | 容重(g/cm3) | 1.50±0.03e | 1.35±0.02d | 1.43±0.03c | 1.32±0.06b | 1.40±0.09a | 0.04 | 0.00 | 10.62 | 0.00 | pH | 9.06±0.02d | 9.56±0.14c | 8.70±0.34b | 8.75±0.38b | 8.05±0.26a | 2.58 | 0.09 | 29.66 | 0.00 | 粘粒含量(%) | 3.53±0.22bc | 2.99±0.90b | 4.51±1.15a | 4.46±0.91ac | 4.79±0.86a | 0.00 | 0.00 | 4.70 | 0.00 | 粉粒含量(%) | 69.15±2.77d | 60.96±14.03c | 70.52±8.68b | 76.70±3.54a | 81.81±1.43a | 0.05 | 0.00 | 11.07 | 0.00 | 砂粒含量(%) | 27.32±2.86e | 36.05±14.90d | 24.98±9.51c | 18.84±3.93b | 13.40±1.76a | 0.06 | 0.01 | 10.97 | 0.00 | EC(dS/m) | 3.84±2.14ab | 0.76±0.24b | 0.14±0.05a | 0.16±0.10a | 0.13±0.03a | 17.64 | 0.54 | 32.47 | 0.00 | TP(%) | 0.05±0.003d | 0.06±0.002cd | 0.06±0.004bc | 0.07±0.02bc | 0.07±0.01ab | 0.04 | 0.01 | 4.52 | 0.01 | TN(%) | 0.02±0.001c | 0.02±0.004c | 0.04±0.01b | 0.04±0.02b | 0.06±0.01a | 0.17 | 0.01 | 17.59 | 0.00 | TOC(%) | 0.24±0.08cd | 0.22±0.05bd | 0.31±0.09c | 0.30±0.08cd | 0.47±0.10a | 0.10 | 0.01 | 12.52 | 0.00 | 脲酶 [mg/(kg·h)] | 1.00±2.44b | 9.45±6.41ab | 10.64±4.12bc | 24.73±33.61ac | 28.40±12.96a | 1136.48 | 357.53 | 3.18 | 0.02 | 酸性磷酸单酯酶 [mg/(kg·h)] | 26.75±10.11d | 45.22±44.68bd | 76.16±41.03bc | 71.12±26.01b | 103.30±24.13a | 7132.04 | 980.49 | 7.27 | 0.00 | 碱性磷酸单酯酶 [mg/(kg·h)] | 17.93±12.43d | 101.70±77.15c | 155.82±45.40c | 216.20±81.29b | 372.09±70.13a | 159173 | 4236.61 | 37.57 | 0.00 | 脱氢酶 [mg/(kg·h)] | 0.93±0.34a | 2.47±2.09a | 3.17±3.42a | 3.10±4.54a | 3.28±1.38a | 5.84 | 9.43 | 0.62 | 0.65 | 淀粉酶 [mg/(kg·h)] | 2.05±2.74a | 2.77±0.77a | 2.87±4.36a | 2.09±0.81a | 2.06±0.64a | 1.55 | 5.87 | 0.26 | 0.90 |
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