Bulletin of Botanical Research ›› 2022, Vol. 42 ›› Issue (2): 299-308.doi: 10.7525/j.issn.1673-5102.2022.02.015
• Physiology and Ecology • Previous Articles Next Articles
Yaqi Dai1, Yanping Liu1,3, Lu Han2,3, Haizhen Wang2,3,*
Received:
2021-03-04
Online:
2022-03-20
Published:
2022-02-22
Contact:
Haizhen Wang
About author:
Dai Yaqi(1996—),femal,master candidate,mainly engaged in physiological research of plant stress.
Supported by:
CLC Number:
Yaqi Dai, Yanping Liu, Lu Han, Haizhen Wang. [J]. Bulletin of Botanical Research, 2022, 42(2): 299-308.
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URL: https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2022.02.015
Table 2
Correlation coefficients of photosynthetic rate,transpiration rate and in-external factors
样地 Plot | 气孔导度 Gs /(mol·m-2·s-1) | 胞间CO2摩尔分数 Ci /(μmol·mol-1) | 气温 Tair /℃ | 光合有效辐射 PAR /(μmol·m-2·s-1) | 大气相对湿度 RH /% | 水汽压差 VPD /kPa | 大气CO2摩尔分数 Ca /(μmol·mol-1) | |
---|---|---|---|---|---|---|---|---|
净光合速率 Pn | Ⅰ | 0.720 7** | -0.781 8** | 0.273 8* | 0.821 0** | 0.096 5 | -0.022 9 | -0.176 0* |
Ⅱ | 0.698 0** | -0.729 2** | 0.506 2** | 0.864 6** | -0.579 7** | 0.423 3** | -0.567 5** | |
Ⅲ | 0.604 1** | -0.780 6** | 0.181 5 | 0.901 5** | 0.113 3 | 0.065 7 | -0.028 8 | |
蒸腾速率 Tr | Ⅰ | 0.551 8** | -0.679 3** | 0.696 8** | 0.750 8** | -0.442 5** | 0.407 9** | -0.492 0** |
Ⅱ | 0.603 2** | -0.691 5** | 0.772 6** | 0.806 4** | -0.819 5** | 0.696 6** | -0.637 4** | |
Ⅲ | 0.621 3** | -0.586 4** | 0.406 5** | 0.700 6** | -0.203 1 | 0.275 5** | -0.168 8 |
Table 3
Partial correlation coefficients of photosynthetic rate, transpiration rate and in-external factors
光合指标 Photosynthetic indexes | 样地 Plot | 气孔导度 Gs /(mol·m-2·s-1) | 胞间CO2摩尔分数 Ci /(μmol·mol-1) | 气温 Tair /℃ | 光合有效辐射 PAR /(μmol·m-2·s-1) | 大气相对湿度 RH /% | 水汽压差 VPD /kPa | 大气CO2摩尔分数 Ca /(μmol·mol-1) |
---|---|---|---|---|---|---|---|---|
净光合速率 Pn | Ⅰ | 0.779 0** | -0.859 0** | -0.148 5 | -0.116 4 | 0.131 6 | 0.189 0* | -0.018 0 |
Ⅱ | 0.762 2** | -0.662 2** | -0.342 9** | 0.038 0 | -0.217 9* | 0.294 5* | 0.163 4 | |
Ⅲ | 0.806 2** | -0.805 6** | 0.478 9** | -0.305 0* | 0.586 4** | -0.152 1 | 0.069 9 | |
蒸腾速率 Tr | Ⅰ | 0.856 3** | 0.115 8 | -0.262 8* | 0.397 3** | -0.363 8** | 0.629 7** | 0.038 1 |
Ⅱ | 0.731 3** | 0.086 9 | -0.072 1 | 0.058 8 | -0.058 8 | 0.572 4** | 0.114 5 | |
Ⅲ | 0.920 7** | 0.173 7 | 0.386 2** | 0.128 1 | 0.273 6* | 0.581 9** | 0.049 8 |
Table 4
Optimal regression equation of photosynthetic rate, transpiration rate and in-external factors
光合指标 Photosynthetic indexes | 样地 Plot | 最优回归方程 Optimal regression equation | R2 |
---|---|---|---|
净光合速率 Pn | Ⅰ | Pn=64.482+30.186Gs-0.150Ci-0.683Tair+0.968VPD | 0.977 0** |
Ⅱ | Pn=46.811+29.954Gs-0.088Ci-0.937Tair-0.272RH+1.634VPD+0.037Ca | 0.965 1** | |
Ⅲ | Pn=-7.435+43.106Gs-0.082Ci+0.676Tair-0.002PAR+0.567RH-0.613VPD | 0.981 4** | |
蒸腾速率 Tr | Ⅰ | Tr=9.786+21.322Gs+0.006Ci-0.401Tair+0.002PAR-0.157RH+2.523VPD | 0.962 9** |
Ⅱ | Tr=-16.512+21.963Gs-0.059Tair+2.868VPD+0.033Ca | 0.956 8** | |
Ⅲ | Tr=-9.947+27.977Gs+0.182Tair+0.075RH+1.055VPD | 0.975 5** |
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