大叶藻对氮磷营养盐的吸收动力学特征
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李诗奇, 张彦浩, 李政, 张沛东
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Uptake kinetics of nitrogen and phosphorus by Zostera marina
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LI Shi-Qi, ZHANG Yan-Hao, LI Zheng, ZHANG Pei-Dong
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表2 大叶藻对NH4+-N、NO3--N和PO43--P的吸收动力学参数
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Table 2 Kinetics characteristics of nutrient uptake of NH4+-N, NO3--N and PO43--P by Zostera marina
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营养盐形式 Form of nutrient | 植株部位 Tissue of plant | Vmax (μmol·g-1·h-1) | Km (μmol·L-1) | R2 | NH4+-N | 植株 Shoot | 51.8 ± 7.1b | 68.1 ± 15.9 | 0.98 | 地上组织 Aboveground tissue | 43.1 ± 7.2b | 58.9 ± 19.4 | 0.92 | 地下组织 Belowground tissue | 16.3 ± 8.5a | 48.6 ± 17.9 | 0.95 | NO3--N | 植株 Shoot | 39.1 ± 7.0 | 68.6 ± 16.8 | 0.99 | 地上组织 Aboveground tissue | 30.5 ± 10.9 | 42.8 ± 13.5 | 0.97 | 地下组织 Belowground tissue | 26.5 ± 3.8 | 53.3 ± 9.1 | 0.99 | PO43--P | 植株 Shoot | 27.9 ± 8.4b | 24.8 ± 4.4b | 0.97 | 地上组织 Aboveground tissue | 15.6 ± 0.9b | 7.6 ± 0.2a | 0.90 | 地下组织 Belowground tissue | 2.6 ± 0.9a | 6.0 ± 1.9a | 0.97 |
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