Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087956 |
Solar‐induced fluorescence does not track photosynthetic carbon assimilation following induced stomatal closure | |
J. K. Marrs; J. S. Reblin; B. A. Logan; D. W. Allen; A. B. Reinmann; D. M. Bombard; D. Tabachnik; L. R. Hutyra | |
2020-06-24 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | Since 2006, six satellites measuring solar‐induced chlorophyll fluorescence (SIF) have been launched to better constrain terrestrial gross primary productivity (GPP). The promise of the SIF signal as a proxy for photosynthesis with a strong relationship to GPP has been widely cited in carbon cycling studies. However, chlorophyll fluorescence originates from dynamic energy partitioning at the leaf level, and does not exhibit a uniformly linear relationship with photosynthesis at finer scales. We induced stomatal closure in deciduous woody tree branches and measured SIF at a proximal scale, alongside leaf‐level gas exchange, pulse amplitude modulated (PAM) fluorescence, and leaf pigment content. We found no change in SIF or steady‐state PAM fluorescence, despite clear reductions in stomatal conductance, carbon assimilation, and light‐use efficiency in treated leaves. These findings suggest that equating SIF and photosynthesis is an oversimplification that may undermine the utility of SIF as a biophysical parameter in GPP models. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278106 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | J. K. Marrs,J. S. Reblin,B. A. Logan,等. Solar‐induced fluorescence does not track photosynthetic carbon assimilation following induced stomatal closure[J]. Geophysical Research Letters,2020. |
APA | J. K. Marrs.,J. S. Reblin.,B. A. Logan.,D. W. Allen.,A. B. Reinmann.,...&L. R. Hutyra.(2020).Solar‐induced fluorescence does not track photosynthetic carbon assimilation following induced stomatal closure.Geophysical Research Letters. |
MLA | J. K. Marrs,et al."Solar‐induced fluorescence does not track photosynthetic carbon assimilation following induced stomatal closure".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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