The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.
Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence
Open accessAbstract
Northern hemisphere evergreen forests assimilate a significant fraction of global atmospheric CO 2 but monitoring large-scale changes in gross primary production (GPP) in these systems is challenging. Recent advances in remote sensing allow the detection of solar-induced chlorophyll fluorescence (SIF) emission from vegetation, which has been empirically linked to GPP at large spatial scales. This is particularly important in evergreen forests, where traditional remote-sensing techniques and terrestrial biosphere models fail to reproduce the seasonality of GPP. Here, we examined the mechanistic relationship between SIF retrieved from a canopy spectrometer system and GPP at a winter-dormant conifer forest, which has little seasonal variation in canopy structure, needle chlorophyll content, and absorbed light. Both SIF and GPP track each other in a consistent, dynamic fashion in response to environmental conditions. SIF and GPP are well correlated ( R 2 = 0.62–0.92) with an invariant slope over hourly to weekly timescales. Large seasonal variations in SIF yield capture changes in photoprotective pigments and photosystem II operating efficiency associated with winter acclimation, highlighting its unique ability to precisely track the seasonality of photosynthesis. Our results underscore the potential of new satellite-based SIF products (TROPOMI, OCO-2) as proxies for the timing and magnitude of GPP in evergreen forests at an unprecedented spatiotemporal resolution.
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Cites
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Self-citationGlobal and time-resolved monitoring of crop photosynthesis with chlorophyll fluorescence
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Self-citationThe role of the xanthophyll cycle and of lutein in photoprotection of photosystem II
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Cited by
Optical vegetation indices for monitoring terrestrial ecosystems globally
Zeng, Y., Hao, D., Huete, A., Dechant, B., Berry, J., Chen, J. M., Joiner, J., Frankenberg, C., Bond-Lamberty, B., Ryu, Y., et al. (2022) · Nature Reviews Earth & Environment · doi:10.1038/s43017-022-00298-5 · Cited by 837
Self-citationRepresentativeness of Eddy-Covariance flux footprints for areas surrounding AmeriFlux sites
Chu, H., Luo, X., Ouyang, Z., Chan, W. S., Dengel, S., Biraud, S. C., Torn, M. S., Metzger, S., Kumar, J., Arain, M. A., et al. (2021) · Agricultural and Forest Meteorology · doi:10.1016/j.agrformet.2021.108350 · Cited by 497
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Metadata
- Authors
- Magney, T. S., Bowling, D. R., Logan, B. A., Grossmann, K., Stutz, J., Blanken, P. D., Burns, S. P., Cheng, R., Garcia, M. A., Kӧhler, P., Lopez, S., Parazoo, N. C., Raczka, B., Schimel, D., & Frankenberg, C.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2019-05-28
- Volume
- 116
- Issue
- 24
- Pages
- 11640-11645
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2947068792
- Cited by
- 435
- References
- 55
- FWCI
- 32.21
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Magney, T. S., Bowling, D. R., Logan, B. A., Grossmann, K., Stutz, J., Blanken, P. D., Burns, S. P., Cheng, R., Garcia, M. A., Kӧhler, P., Lopez, S., Parazoo, N. C., Raczka, B., Schimel, D., & Frankenberg, C. (2019). Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1900278116
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