Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 22
Articles | Volume 22, issue 22
https://doi.org/10.5194/bg-22-7137-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-7137-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 22
Technical note
 | 
24 Nov 2025
Technical note |  | 24 Nov 2025

Technical note: In situ photosynthesis-irradiance curve determination in peatlands with a modulated-light skirt-chamber

Frederic Thalasso, Julio A. Salas-Rabaza, Brenda Riquelme del Río, Jorge F. Perez-Quezada, Cristian Gajardo, and Matías Troncoso-Villar

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Latest update: 25 Oct 2026
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Short summary
Peatlands are complex and widespread ecosystems that store large amounts of carbon through photosynthesis. Carbon fixation depends on solar irradiance, and the relationship between them is called the photosynthesis-irradiance or “PI” curve. We developed a simple, portable chamber to measure PI curves in peatlands, taking into account complex plant assemblages and microhabitat variability. This tool may help scientists better understand carbon dynamics in these ecosystems.
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