不同林龄梭梭( Haloxylon ammodendron )的光合特性和水分利用效率
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贺晓慧, 司建华, 周冬蒙, 王春林, 赵春彦
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Photosynthetic properties and leaf-scale water use efficiency of Haloxylon ammodendron in different stand ages
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Xiaohui He, Jianhua Si, Dongmeng Zhou, Chunlin Wang, Chunyan Zhao
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表2 不同林龄梭梭的光响应特征参数
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Table 2 Photosynthetic parameters of light response of Haloxylon ammodendron at different ages
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林龄 /a | 最大净光合速率Pnmax /(μmol·m-2·s-1) | 光饱和点LSP/(μmol·m-2·s-1) | 光补偿点LCP /(μmol·m-2·s-1) | 暗呼吸速率Rd /(μmol·m-2·s-1) | 表观量子效率AQE /(μmol CO2·μmol-1) |
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5 | 34.42±1.34c | 1 976.51±133.95ab | 180.29±8.20a | 10.32±1.01a | 0.0613±0.0046ab | 11 | 28.04±0.85b | — c | 158.94±2.28a | 11.75±0.58a | 0.0776±0.0028b | 22 | 21.46±1.11a | 1 770.09±104.24a | 138.87±19.67a | 8.60±0.38a | 0.0552±0.0027a | 34 | 25.65±0.63b | — b | 170.89±9.43a | 10.81±1.74a | 0.0659±0.0107ab | 46 | 25.37±0.36b | 1 937.98±54.50ab | 144.68±16.00a | 10.63±1.42a | 0.0751±0.0043b |
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