## 5 Conclusions
The significance of the correlation is indicated with \"a\" if the \(p\)-value < 0.01 and \"b\" if the \(p\)-value < 0.05, while \"c\" indicates no significant correlation; Table S3: Coefficient of determination (R\({}^{2}\)), root-mean-square error (RMSE), and bias between the observed and simulated canopy-level solar-induced chlorophyll fluorescence at 760 nm (SIF\({}_{760}\), W m\({}^{-2}\) um\({}^{-1}\) sr\({}^{-1}\)), gross primary productivity (GPP, umol m\({}^{-2}\) s\({}^{-1}\)), and evapotranspiration (ET, mm h\({}^{-1}\)) at different vapor pressure deficits (VPDs, kPa), air temperatures (\"C), water temperature (\"C), and salinity (\"o\") and \"b\" if the \(p\)-value < 0.05, while \"c\" indicates no significant correlation; Table S4: Coefficient of determination (R\({}^{2}\)), coefficient a, and coefficient b between the observed solar-induced chlorophyll fluorescence at 760 nm (SIF\({}_{760}\), W m\({}^{-2}\) um\({}^{-2}\) sr\({}^{-1}\)) both the observed gross primary productivity (GPP, umol m\({}^{-2}\) s\({}^{-1}\)) and the observed evapotranspiration (ET, mm h\({}^{-1}\)) (x and y are observed values of SIF\({}_{760}\) and GPP, and the regression equation is \(y\ =\ a\cdot\)x\({}^{b}\); x and y are observed values of SIF\({}_{760}\) and ET, and the regression equation is \(y~{}=~{}a\cdot x+b\).) at different vapor pressure deficits (VPDs, kPa), air temperatures (\({}^{\circ}\)C), and soil temperatures (\({}^{\circ}\)C). The significance of the correlation is indicated with \({}^{\circ\prime}\) if the \(p\)-value \(<\) 0.01 and \({}^{\circ\prime}\) if the \(p\)-value \(<\) 0.05, while \({}^{\circ\prime}\) indicates no significant correlation; Table S5. Coefficient of determination (R\({}^{2}\)), coefficient a, and coefficient b between the observed solar-induced chlorophyll fluorescence at 760 nm (SIF\({}_{760}\), W m\({}^{-1}\) um\({}^{-2}\) sr\({}^{-1}\)), both the observed gross primary productivity (GPP, umol m\({}^{-2}\) s\({}^{-1}\)) and the observed evapotranspiration (ET, mm h\({}^{-1}\)) (x and y are observed values of SIF\({}_{760}\) and GPP, and the regression equation is \(y~{}=~{}a\cdot x^{b}\); x and y are observed values of SIF\({}_{760}\) and ET, and the regression equation is \(y~{}=~{}a\cdot x+b\).) at different vapor pressure deficits (VPDs, kPa), air temperatures (\({}^{\circ}\)C), and soil temperatures (\({}^{\circ}\)C), water temperature (\({}^{\circ}\)C), and salinity (%) under tidal flooding. The significance of the correlation is indicated with \({}^{\circ\prime}\) if the \(p\)-value \(<\) 0.01 and \({}^{\circ\prime}\) if the \(p\)-value \(<\) 0.05, while \({}^{\circ\prime}\) indicates no significant correlation. Conceptualization, J.L. and Y.H. ; Methodology, J.L. ; Software, Y.H. ; Formal analysis, J.L. ; Data curation, Y.H. ; Writing--original draft, J.L. and Y.H. ; Writing--review and editing, J.L. and Y.H. ; Supervision, Y.H. ; Project administration, Y.H. ; Funding acquisition, Y.H. All authors have read and agreed to the published version of the manuscript. This work was kindly sponsored by the National Natural Science Foundation of China (42471396, 41801253), the Shanghai Municipal Science and Technology Commission (22 ZR1419400), and the National Key R&D Program of China (2022 YFE0209300, 2023 YFE0113100). The raw data supporting the conclusions of this article will be made available by the authors upon request, as the original data utilized in this study have not yet been publicly released. We appreciate the Shanghai Jiuduansha Wetland National Nature Reserve Administration Center for their support. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.