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
李群,赵成章,王继伟,文军,李子琴,马俊逸

Morphological and photosynthetic physiological characteristics of Saussurea salsa in response to flooding in salt marshes of Xiao Sugan Lake, Gansu, China
LI Qun,ZHAO Cheng-Zhang,WANG Ji-Wei,WEN Jun,LI Zi-Qin,MA Jun-Yi
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)
Table 3 Leaf traits characteristics and photosynthetic physiological parameters of Saussurea salsa in salt marshes of Xiao Sugan Lake (mean ± SE)
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