Models of fluorescence and photosynthesis for interpreting measurements of solar‐induced chlorophyll fluorescence

作者：Christiaan van der Tol, Joseph A. Berry, Petya Campbell, Uwe Rascher · 发表于：Journal of Geophysical Research Biogeosciences · 年份：2014 · DOI：10.1002/2014jg002713 · 被引用次数：433 · 研究领域：Photosynthetic Processes and Mechanisms、Plant Water Relations and Carbon Dynamics、Plant responses to elevated CO2

Abstract We have extended a conventional photosynthesis model to simulate field and laboratory measurements of chlorophyll fluorescence at the leaf scale. The fluorescence paramaterization is based on a close nonlinear relationship between the relative light saturation of photosynthesis and nonradiative energy dissipation in plants of different species. This relationship diverged only among examined data sets under stressed (strongly light saturated) conditions, possibly caused by differences in xanthophyll pigment concentrations. The relationship was quantified after analyzing data sets of pulse amplitude modulated measurements of chlorophyll fluorescence and gas exchange of leaves of different species exposed to different levels of light, CO2, temperature, nitrogen fertilization treatments, and drought. We used this relationship in a photosynthesis model. The coupled model enabled us to quantify the relationships between steady state chlorophyll fluorescence yield, electron transport rate, and photosynthesis in leaves under different environmental conditions.