臭氧和气溶胶复合污染对杨树叶片光合作用的影响
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Effects of ozone and aerosol pollution on photosynthesis of poplar leaves
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图2. 气溶胶光学厚度(AOD)与光合有效辐射(PAR)的关系。直线为通过显著性检验(p < 0.05)的回归线, 灰色阴影区域为95%的置信区间。 |
Fig. 2. Photosynthetically active radiation (PAR) under different aerosol optical depth (AOD). The black line is the regression line for all data of the three sites (p < 0.01), and the gray areas is the 95% confidence band for the regression curve. |
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