甘肃小苏干湖盐沼湿地盐地风毛菊叶形态-光合生理特征对淹水的响应
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李群,赵成章,王继伟,文军,李子琴,马俊逸
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Morphological and photosynthetic physiological characteristics of Saussurea salsa in response to flooding in salt marshes of Xiao Sugan Lake, Gansu, China
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LI Qun,ZHAO Cheng-Zhang,WANG Ji-Wei,WEN Jun,LI Zi-Qin,MA Jun-Yi
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表3 小苏干湖盐沼湿地盐地风毛菊叶性状与光合生理参数特征(平均值±标准误差)
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Table 3 Leaf traits characteristics and photosynthetic physiological parameters of Saussurea salsa in salt marshes of Xiao Sugan Lake (mean ± SE)
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参数 Parameter | 样地 Plot | I | II | III | LA (cm2) | 7.14 ± 0.36c | 8.34 ± 0.42b | 17.61 ± 0.88a | LT (mm) | 0.15 ± 0.01a | 0.14 ± 0.01a | 0.10 ± 0.01b | SLA (cm2·g-1) | 8.28 ± 0.41b | 8.82 ± 0.44b | 14.53 ± 0.73a | LDW (g) | 0.86 ± 0.04a | 0.95 ± 0.05a | 1.21 ± 0.06b | Ca (mg·g-1) | 5.39 ± 0.27a | 3.11 ± 0.16b | 1.26 ± 0.06c | Cb (mg·g-1) | 1.93 ± 0.10a | 1.15 ± 0.06b | 0.67 ± 0.03c | Ccar (mg·g-1) | 1.39 ± 0.07a | 0.67 ± 0.03b | 0.58 ± 0.03c | Pn (μmol CO2·m-2·s-1) | 4.67 ± 0.23b | 5.17 ± 0.26a | 3.77 ± 0.19c | Tr (mmol H2O·m-2·s-1) | 1.08 ± 0.05a | 1.19 ± 0.06a | 0.97 ± 0.05b | WUE (μmol CO2·mmol-1 H2O) | 4.32 ± 0.22a | 4.34 ± 0.22a | 3.89 ± 0.19b | Y(II) | 0.33 ± 0.02a | 0.33 ± 0.02a | 0.23 ± 0.01b | Y(NO) | 0.38 ± 0.02a | 0.26 ± 0.01b | 0.23 ± 0.01c | Y(NPQ) | 0.29 ± 0.01c | 0.41 ± 0.02b | 0.54 ± 0.03a | QP | 0.73 ± 0.04a | 0.75 ± 0.04a | 0.52 ± 0.03b | NPQ | 0.19 ± 0.01c | 0.40 ± 0.02b | 0.59 ± 0.03a | ETR (µmol·m-2·s-1) | 60.02 ± 3.00a | 51.94 ± 2.60b | 49.02 ± 2.45c |
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