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.
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.
the Creative Commons Attribution 4.0 License.
Technical note
| 
24 Nov 2025
Technical note |
| 24 Nov 2025
| 24 Nov 2025
Technical note: In situ photosynthesis-irradiance curve determination in peatlands with a modulated-light skirt-chamber
Departamento de Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Av. IPN 2508, Mexico City 07360, Mexico
Cape Horn International Center, Universidad de Magallanes, O'Higgins 310, Puerto Williams, Chile
Julio A. Salas-Rabaza
CORRESPONDING AUTHOR
Cape Horn International Center, Universidad de Magallanes, O'Higgins 310, Puerto Williams, Chile
Brenda Riquelme del Río
Cape Horn International Center, Universidad de Magallanes, O'Higgins 310, Puerto Williams, Chile
Jorge F. Perez-Quezada
Cape Horn International Center, Universidad de Magallanes, O'Higgins 310, Puerto Williams, Chile
Department of Environmental Sciences and Renewable Natural Resources, University of Chile, Av. Santa Rosa 11315, La Pintana, Santiago, Chile
Institute of Ecology and Biodiversity, Barrio Universitario de Concepción, Concepción, Chile
Cristian Gajardo
Department of Environmental Sciences and Renewable Natural Resources, University of Chile, Av. Santa Rosa 11315, La Pintana, Santiago, Chile
Matías Troncoso-Villar
Cape Horn International Center, Universidad de Magallanes, O'Higgins 310, Puerto Williams, Chile
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For 8 years we sampled a temperate rainforest and a peatland in Chile to estimate their efficiency to capture carbon per unit of water lost. The efficiency is more related to the water lost than to the carbon captured and is mainly driven by evaporation instead of transpiration. This is the first report from southern South America and highlights that ecosystems might behave differently in this area, likely explained by the high annual precipitation (~ 2100 mm) and light-limited conditions.
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Short summary
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A robust skirt-chamber design to capture and quantify greenhouse gas emissions from peatlands is presented. Compared to standard methods, this design improves the spatial resolution of field studies in remote locations while minimizing intrusion.
Frederic Thalasso, Katey Walter Anthony, Olya Irzak, Ethan Chaleff, Laughlin Barker, Peter Anthony, Philip Hanke, and Rodrigo Gonzalez-Valencia
Hydrol. Earth Syst. Sci., 24, 6047–6058, https://doi.org/10.5194/hess-24-6047-2020, https://doi.org/10.5194/hess-24-6047-2020, 2020
Short summary
Short summary
Methane (CH4) seepage is the steady or episodic flow of gaseous hydrocarbons from subsurface reservoirs that has been identified as a significant source of atmospheric CH4. The monitoring of these emissions is important and despite several available methods, large macroseeps are still difficult to measure due to a lack of a lightweight and inexpensive method deployable in remote environments. Here, we report the development of a mobile chamber for measuring intense CH4 macroseepage in lakes.
Cited articles
Abdalla, M., Hastings, A., Truu, J., Espenberg, M., Mander, Ü., and Smith, P.: Emissions of methane from northern peatlands: A review of management impacts and implications for future management options, Ecol. Evol., 6, 7080–7102, https://doi.org/10.1002/ece3.2469, 2016.
Aro, E. M. and Gerbaud, A.: Photosynthesis and photorespiration in mosses, in: Advances in Photosynthesis Research, edited by: Sybesma, C., Advances in Agricultural Biotechnology, vol. 3, Springer, Dordrecht, https://doi.org/10.1007/978-94-017-4973-2_198, 1984.
Badorek, T., Tuittila, E.-S., Ojanen, P., and Minkkinen, K.: Forest floor photosynthesis and respiration in a drained peatland forest in southern Finland, Plant Ecol. Divers., 4, 227–241, https://doi.org/10.1080/17550874.2011.644344, 2011.
Baldocchi, D., Novick, K., Keenan, T., and Torn, M.: AmeriFlux: Its impact on our understanding of the “breathing of the biosphere”, after 25 years, Agr. Forest Meteorol., 348, 109929, https://doi.org/10.1016/j.agrformet.2024.109929, 2024.
Bengtsson, F., Granath, G., and Rydin, H.: Photosynthesis, growth, and decay traits in Sphagnum – a multispecies comparison, Ecol. Evol., 6, 3325–3341, https://doi.org/10.1002/ece3.2119, 2016.
Bernard, O. and Rémond, B.: Validation of a simple model accounting for light and temperature effect on microalgal growth, Bioresour. Technol., 123, 520–527, https://doi.org/10.1016/j.biortech.2012.07.022, 2012.
Björkman, O. and Demmig, B.: Photon yield of O2 evolution and chlorophyll fluorescence characteristics at 77 K among vascular plants of diverse origins, Planta, 170, 489–504, https://doi.org/10.1007/BF00402983, 1987.
Bubier, J. L., Crill, P. M., Moore, T. R., Savage, K., and Varner, R. K.: Seasonal patterns and controls on net ecosystem CO2 exchange in a boreal peatland complex, Global Biogeochem. Cycles, 12, 703–714, https://doi.org/10.1029/98GB02426, 1998.
Charman, D. J., Beilman, D. W., Blaauw, M., Booth, R. K., Brewer, S., Chambers, F. M., Christen, J. A., Gallego-Sala, A., Harrison, S. P., Hughes, P. D. M., Jackson, S. T., Korhola, A., Mauquoy, D., Mitchell, F. J. G., Prentice, I. C., van der Linden, M., De Vleeschouwer, F., Yu, Z. C., Alm, J., Bauer, I. E., Corish, Y. M. C., Garneau, M., Hohl, V., Huang, Y., Karofeld, E., Le Roux, G., Loisel, J., Moschen, R., Nichols, J. E., Nieminen, T. M., MacDonald, G. M., Phadtare, N. R., Rausch, N., Sillasoo, Ü., Swindles, G. T., Tuittila, E.-S., Ukonmaanaho, L., Väliranta, M., van Bellen, S., van Geel, B., Vitt, D. H., and Zhao, Y.: Climate-related changes in peatland carbon accumulation during the last millennium, Biogeosciences, 10, 929–944, https://doi.org/10.5194/bg-10-929-2013, 2013.
Falge, E., Baldocchi, D., Olson, R., Anthoni, P., Aubinet, M., Bernhofer, C., Burba, G., Ceulemans, R., Clement, R., Dolman, H., Granier, A., Gross, P., Grünwald, T., Hollinger, D., Jensen, N.-O., Katul, G., Keronen, P., Kowalski, A., Lai, C. T., Law, B. E., Meyers, T., Moncrieff, J., Moors, E., Munger, J. W., Pilegaard, K., Rannik, Ü., Rebmann, C., Suyker, A., Tenhunen, J., Tu, K., Verma, S., Vesala, T., Wilson, K., and Wofsy, S.: Gap filling strategies for defensible annual sums of net ecosystem exchange, Agric. For. Meteorol., 107, 43–69, https://doi.org/10.1016/S0168-1923(00)00225-2, 2001.
Flanagan, L. B.: Interacting controls on ecosystem photosynthesis and respiration in contrasting peatland ecosystems, in: Photosynthesis in Bryophytes and Early Land Plants, edited by: Hanson, D. and Rice, S., Advances in Photosynthesis and Respiration, vol. 37, Springer, Dordrecht, https://doi.org/10.1007/978-94-007-6988-5_14, 2014.
Frolking, S., Roulet, N., and Fuglestvedt, J.: How northern peatlands influence the Earth's radiative budget: Sustained methane emission versus sustained carbon sequestration, J. Geophys. Res.-Biogeosci., 111, G01008, https://doi.org/10.1029/2005JG000091, 2006.
Frolking, S. E., Bubier, J. L., Moore, T. R., Ball, T., Bellisario, L. M., Bhardwaj, A., Carroll, P., Crill, P. M., Lafleur, P. M., and McCaughey, J. H.: Relationship between ecosystem productivity and photosynthetically active radiation for northern peatlands, Global Biogeochem. Cycles, 12, 115–126, https://doi.org/10.1029/97GB03367, 1998.
Griscom, B. W., Adams, J., Ellis, P. W., Houghton, R. A., Lomax, G., Miteva, D. A., Schlesinger, W. H., Shoch, D., Siikamäki, J. V., Smith, P., Woodbury, P., Zganjar, C., Blackman, A., Campari, J., Conant, R. T., Delgado, C., Elias, P., Gopalakrishna, T., Hamsik, M. R., Herrero, M., Kiesecker, J., Landis, E., Laestadius, L., Leavitt, S. M., Minnemeyer, S., Polasky, S., Potapov, P., Putz, F. E., Sanderman, J., Silvius, M., Wollenberg, E., and Fargione, J.: Natural climate solutions, Proc. Natl. Acad. Sci. USA, 114, 11645–11650, https://doi.org/10.1073/pnas.1710465114, 2017.
Hájek, T.: Physiological ecology of peatland bryophytes, in: Photosynthesis in Bryophytes and Early Land Plants, edited by: Hanson, D. and Rice, S., Advances in Photosynthesis and Respiration, vol. 37, Springer, Dordrecht, https://doi.org/10.1007/978-94-007-6988-5_13, 2014.
Heinemeyer, A., Di Bene, C., Lloyd, A. R., Tortorella, D., Baxter, R., Huntley, B., Gelsomino, A., and Ineson, P.: Soil respiration: implications of the plant-soil continuum and respiration chamber collar-insertion depth on measurement and modelling of soil CO2 efflux rates in three ecosystems, European Journal of Soil Science, 62, 82–94, https://doi.org/10.1111/j.1365-2389.2010.01331.x, 2011.
Herrmann, H. A., Schwartz, J. M., and Johnson, G. N.: From empirical to theoretical models of light response curves – linking photosynthetic and metabolic acclimation, Photosynth. Res., 145, 5–14, https://doi.org/10.1007/s11120-019-00681-2, 2020.
Holl, D., Pancotto, V., Heger, A., Camargo, S. J., and Kutzbach, L.: Cushion bogs are stronger carbon dioxide net sinks than moss-dominated bogs as revealed by eddy covariance measurements on Tierra del Fuego, Argentina, Biogeosciences, 16, 3397–3423, https://doi.org/10.5194/bg-16-3397-2019, 2019.
Jentzsch, K., Männistö, E., Marushchak, M. E., Korrensalo, A., van Delden, L., Tuittila, E.-S., Knoblauch, C., and Treat, C. C.: Shoulder season controls on methane emissions from a boreal peatland, Biogeosciences, 21, 3761–3788, https://doi.org/10.5194/bg-21-3761-2024, 2024.
Jones, C. T., Craig, S. E., Barnett, A. B., MacIntyre, H. L., and Cullen, J. J.: Curvature in models of the photosynthesis-irradiance response, J. Phycol., 50, 341–355, https://doi.org/10.1111/jpy.12164, 2014.
Kangas, L., Maanavilja, L., Hájek, T., Juurola, E., Chimner, R. A., Mehtätalo, L., and Tuittila, E.-S.: Photosynthetic traits of Sphagnum and feather moss species in undrained, drained, and rewetted boreal spruce swamp forests, Ecol. Evol., 4, 381–396, https://doi.org/10.1002/ece3.939, 2014.
Leifeld, J. and Menichetti, L.: The underappreciated potential of peatlands in global climate change mitigation strategies, Nat. Commun., 9, 1071, https://doi.org/10.1038/s41467-018-03406-6, 2018.
LI-COR Biosciences: EddyPro software, Version 7.0.9, LI-COR Biosciences, Lincoln, Nebraska, USA, https://www.licor.com/products/eddy-covariance/eddypro (last access: 14 November 2025), 2022.
OriginLab Corporation: OriginPro, Version 2016, OriginLab orporation, Northampton, MA, USA, 2016.
Page, S. E., Rieley, J. O., and Banks, C. J.: Global and regional importance of the tropical peatland carbon pool, Glob. Change Biol., 17, 798–818, https://doi.org/10.1111/j.1365-2486.2010.02279.x, 2011.
Peng, C., Li, H., Yang, N., and Lu, M. A.: Comparison of greenhouse gas emission patterns in different water levels in peatlands, Water, 16, 985, https://doi.org/10.3390/w16070985, 2024.
Perez-Quezada, J. F., Saliendra, N. Z., Akshalov, K., Johnson, D. A., and Laca, E. A.: Land use influences carbon fluxes in Northern Kazakhstan, Rangeland Ecol. Manag., 63, 82–93, https://doi.org/10.2111/08-106.1, 2010.
Perez-Quezada, J. F., Trejo, D., Lopatin, J., Aguilera, D., Osborne, B., Galleguillos, M., Zattera, L., Celis-Diez, J. L., and Armesto, J. J.: Comparison of carbon and water fluxes and the drivers of ecosystem water use efficiency in a temperate rainforest and a peatland in southern South America, Biogeosciences, 21, 1371–1389, https://doi.org/10.5194/bg-21-1371-2024, 2024.
Riquelme del Río, B. R., Sepulveda-Jauregui, A., Salas-Rabaza, J. A., Mackenzie, R., and Thalasso, F.: Fine-scale spatial variability of greenhouse gas emissions from a Subantarctic peatland bog, Environ. Sci. Technol., 58, 7393–7402, https://doi.org/10.1021/acs.est.3c10746, 2024.
Rydin, H. and Jeglum, J. K.: The biology of peatlands, 2nd edn., Oxford University Press, 398 pp., https://doi.org/10.1093/acprof:osobl/9780199602995.001.0001, 2013.
Satriawan, T. W., Nyberg, M., Lee, S.-C., Christen, A., Black, T. A., Johnson, M. S., Nesic, Z., Merkens, M., and Knox, S. H.: Interannual variability of carbon dioxide (CO2) and methane (CH4) fluxes in a rewetted temperate bog, Agric. For. Meteorol., 342, 109696, https://doi.org/10.1016/j.agrformet.2023.109696, 2023.
Shurpali, N. J., Verma, S. B., Kim, J., and Arkebauer, T. J.: Carbon dioxide exchange in a peatland ecosystem, J. Geophys. Res., 100, 319–326, https://doi.org/10.1029/95JD01227, 1995.
Suyker, A. E., Verma, S. B., and Arkebauer, T. J.: Season-long measurement of carbon dioxide exchange in a boreal fen, J. Geophys. Res., 102, 29021–29028, https://doi.org/10.1029/96JD03877, 1997.
Thalasso, F., Riquelme, B., Gómez, A., Mackenzie, R., Aguirre, F. J., Hoyos-Santillan, J., Rozzi, R., and Sepulveda-Jauregui, A.: Technical note: Skirt chamber – an open dynamic method for the rapid and minimally intrusive measurement of greenhouse gas emissions from peatlands, Biogeosciences, 20, 3737–3749, https://doi.org/10.5194/bg-20-3737-2023, 2023.
Thalasso, F., Salas-Rabaza, J. A., and Riquelme del Río, B.: Photosynthesis-irradiance curve in peatlands with a modulated-light skirt-chamber, Mendeley Data, V1 [data set], https://doi.org/10.17632/crhk97t7cy.1, 2025.
UNEP (United Nations Environment Programme): Resolution 4/16. Conservation and sustainable management of peatlands – resolution adopted by the United Nations Environment Assembly on 15 March 2019, https://wedocs.unep.org/20.500.11822/30675 (last access: 23 November 2024), 2019.
Walcker, R., Le Lay, C., Gandois, L., Elgar, E., and Jassey, V. E. J.: High-resolution mapping of peatland CO2 fluxes using drone multispectral images, Ecol. Inform., 86, 103060, https://doi.org/10.1016/j.ecoinf.2025.103060, 2025.
Ye, Z.-P., Suggett, D. C. J., Robakowski, P., and Kang, H.-J.: A mechanistic model for the photosynthesis–light response based on the photosynthetic electron transport of photosystem II in C3 and C4 species, New Phytol., 199, 110–120, https://doi.org/10.1111/nph.12242, 2013.
Yu, Z.: Holocene carbon flux histories of the world's peatlands: Global carbon cycle implications, Holocene, 21, 761–774, https://doi.org/10.1177/0959683610386982, 2011.
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.
Peatlands are complex and widespread ecosystems that store large amounts of carbon through...
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