Articles | Volume 22, issue 12
https://doi.org/10.5194/bg-22-2959-2025
© 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-22-2959-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Distinct changes in carbon, nitrogen, and phosphorus cycling in the litter layer across two contrasting forest–tundra ecotones
Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
Josephine Imboden
Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
Pavel A. Moiseev
Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, 620144, Ekaterinburg, Russia
Decai Gao
Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
Qianyanzhou Ecological Research Station, The Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Emmanuel Frossard
Dept. of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
Patrick Schleppi
Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
Daniel Christen
Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
Konstantin Gavazov
Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
Jasmin Fetzer
Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
Dept. of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
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Claudia Guidi, Sia Gosheva-Oney, Markus Didion, Roman Flury, Lorenz Walthert, Stephan Zimmermann, Brian J. Oney, Pascal A. Niklaus, Esther Thürig, Toni Viskari, Jari Liski, and Frank Hagedorn
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Predicting soil organic carbon (SOC) stocks in forests is crucial to determining the C balance, yet drivers of SOC stocks remain uncertain at large scales. Across a broad environmental gradient in Switzerland, we compared measured SOC stocks with those modeled by Yasso, which is commonly used for greenhouse gas budgets. We show that soil mineral properties and climate are the main controls of SOC stocks, indicating that better accounting of these processes will advance the accuracy of SOC stock predictions.
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We developed a framework using rates and 14C-derived ages of soil-respired CO2 and its sources (autotrophic, heterotrophic) to identify carbon cycling pathways in different land-use types. Rates, ages and sources of respired CO2 varied across forests, grasslands, croplands, and managed peatlands. Our results suggest that the relationship between rates and ages of respired CO2 serves as a robust indicator of carbon retention or destabilization from natural to disturbed systems.
Chun Chung Yeung, Harald Bugmann, Frank Hagedorn, Margaux Moreno Duborgel, and Olalla Díaz-Yáñez
EGUsphere, https://doi.org/10.5194/egusphere-2025-1022, https://doi.org/10.5194/egusphere-2025-1022, 2025
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To address the uncertain interactions between soil nitrogen (N) and carbon (C), we set up a model “experiment” in silico to test several hypothesized responses of decomposers to N. We found that decomposers were stimulated by N when decomposing high C:N detritus, but inhibited when decomposing low C:N, processed organic C. The consequence is that under exogenous N addition (e.g., contemporary N deposition), forests may accumulate light fraction C predominantly, at the expense of coarse detritus.
Marco M. Lehmann, Josie Geris, Ilja van Meerveld, Daniele Penna, Youri Rothfuss, Matteo Verdone, Pertti Ala-Aho, Matyas Arvai, Alise Babre, Philippe Balandier, Fabian Bernhard, Lukrecija Butorac, Simon Damien Carrière, Natalie C. Ceperley, Zuosinan Chen, Alicia Correa, Haoyu Diao, David Dubbert, Maren Dubbert, Fabio Ercoli, Marius G. Floriancic, Teresa E. Gimeno, Damien Gounelle, Frank Hagedorn, Christophe Hissler, Frédéric Huneau, Alberto Iraheta, Tamara Jakovljević, Nerantzis Kazakis, Zoltan Kern, Karl Knaebel, Johannes Kobler, Jiří Kocum, Charlotte Koeber, Gerbrand Koren, Angelika Kübert, Dawid Kupka, Samuel Le Gall, Aleksi Lehtonen, Thomas Leydier, Philippe Malagoli, Francesca Sofia Manca di Villahermosa, Chiara Marchina, Núria Martínez-Carreras, Nicolas Martin-StPaul, Hannu Marttila, Aline Meyer Oliveira, Gaël Monvoisin, Natalie Orlowski, Kadi Palmik-Das, Aurel Persoiu, Andrei Popa, Egor Prikaziuk, Cécile Quantin, Katja T. Rinne-Garmston, Clara Rohde, Martin Sanda, Matthias Saurer, Daniel Schulz, Michael Paul Stockinger, Christine Stumpp, Jean-Stéphane Venisse, Lukas Vlcek, Stylianos Voudouris, Björn Weeser, Mark E. Wilkinson, Giulia Zuecco, and Katrin Meusburger
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-409, https://doi.org/10.5194/essd-2024-409, 2024
Revised manuscript under review for ESSD
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This study describes a unique large-scale isotope dataset to study water dynamics in European forests. Researchers collected data from 40 beech and spruce forest sites in spring and summer 2023, using a standardized method to ensure consistency. The results show that water sources for trees change between seasons and vary by tree species. This large dataset offers valuable information for understanding plant water use, improving ecohydrological models, and mapping water cycles across Europe.
Alexander S. Brunmayr, Frank Hagedorn, Margaux Moreno Duborgel, Luisa I. Minich, and Heather D. Graven
Geosci. Model Dev., 17, 5961–5985, https://doi.org/10.5194/gmd-17-5961-2024, https://doi.org/10.5194/gmd-17-5961-2024, 2024
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A new generation of soil models promises to more accurately predict the carbon cycle in soils under climate change. However, measurements of 14C (the radioactive carbon isotope) in soils reveal that the new soil models face similar problems to the traditional models: they underestimate the residence time of carbon in soils and may therefore overestimate the net uptake of CO2 by the land ecosystem. Proposed solutions include restructuring the models and calibrating model parameters with 14C data.
Tatjana C. Speckert, Jeannine Suremann, Konstantin Gavazov, Maria J. Santos, Frank Hagedorn, and Guido L. B. Wiesenberg
SOIL, 9, 609–621, https://doi.org/10.5194/soil-9-609-2023, https://doi.org/10.5194/soil-9-609-2023, 2023
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Soil organic carbon (SOC) is key player in the global carbon cycle. Afforestation on pastures potentially alters organic matter input and SOC sequestration. We investigated the effects of a Picea abies L. afforestation sequence (0 to 130 years) on a former subalpine pasture on SOC stocks and dynamics. We found no difference in the SOC stock after 130 years of afforestation and thus no additional SOC sequestration. SOC composition was altered due to a modified SOC input following afforestation.
Jasmin Fetzer, Emmanuel Frossard, Klaus Kaiser, and Frank Hagedorn
Biogeosciences, 19, 1527–1546, https://doi.org/10.5194/bg-19-1527-2022, https://doi.org/10.5194/bg-19-1527-2022, 2022
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As leaching is a major pathway of nitrogen and phosphorus loss in forest soils, we investigated several potential drivers in two contrasting beech forests. The composition of leachates, obtained by zero-tension lysimeters, varied by season, and climatic extremes influenced the magnitude of leaching. Effects of nitrogen and phosphorus fertilization varied with soil nutrient status and sorption properties, and leaching from the low-nutrient soil was more sensitive to environmental factors.
Severin-Luca Bellè, Asmeret Asefaw Berhe, Frank Hagedorn, Cristina Santin, Marcus Schiedung, Ilja van Meerveld, and Samuel Abiven
Biogeosciences, 18, 1105–1126, https://doi.org/10.5194/bg-18-1105-2021, https://doi.org/10.5194/bg-18-1105-2021, 2021
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Controls of pyrogenic carbon (PyC) redistribution under rainfall are largely unknown. However, PyC mobility can be substantial after initial rain in post-fire landscapes. We conducted a controlled simulation experiment on plots where PyC was applied on the soil surface. We identified redistribution of PyC by runoff and splash and vertical movement in the soil depending on soil texture and PyC characteristics (material and size). PyC also induced changes in exports of native soil organic carbon.
Hannah Gies, Frank Hagedorn, Maarten Lupker, Daniel Montluçon, Negar Haghipour, Tessa Sophia van der Voort, and Timothy Ian Eglinton
Biogeosciences, 18, 189–205, https://doi.org/10.5194/bg-18-189-2021, https://doi.org/10.5194/bg-18-189-2021, 2021
Short summary
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Understanding controls on the persistence of organic matter in soils is essential to constrain its role in the carbon cycle. Emerging concepts suggest that the soil carbon pool is predominantly comprised of stabilized microbial residues. To test this hypothesis we isolated microbial membrane lipids from two Swiss soil profiles and measured their radiocarbon age. We find that the ages of these compounds are in the range of millenia and thus provide evidence for stabilized microbial mass in soils.
Claudia Guidi, Sia Gosheva-Oney, Markus Didion, Roman Flury, Lorenz Walthert, Stephan Zimmermann, Brian J. Oney, Pascal A. Niklaus, Esther Thürig, Toni Viskari, Jari Liski, and Frank Hagedorn
Biogeosciences, 22, 4107–4122, https://doi.org/10.5194/bg-22-4107-2025, https://doi.org/10.5194/bg-22-4107-2025, 2025
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Predicting soil organic carbon (SOC) stocks in forests is crucial to determining the C balance, yet drivers of SOC stocks remain uncertain at large scales. Across a broad environmental gradient in Switzerland, we compared measured SOC stocks with those modeled by Yasso, which is commonly used for greenhouse gas budgets. We show that soil mineral properties and climate are the main controls of SOC stocks, indicating that better accounting of these processes will advance the accuracy of SOC stock predictions.
Luisa I. Minich, Dylan Geissbühler, Stefan Tobler, Annegret Udke, Alexander S. Brunmayr, Margaux Moreno Duborgel, Ciriaco McMackin, Lukas Wacker, Philip Gautschi, Negar Haghipour, Markus Egli, Ansgar Kahmen, Jens Leifeld, Timothy I. Eglinton, and Frank Hagedorn
EGUsphere, https://doi.org/10.5194/egusphere-2025-2267, https://doi.org/10.5194/egusphere-2025-2267, 2025
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We developed a framework using rates and 14C-derived ages of soil-respired CO2 and its sources (autotrophic, heterotrophic) to identify carbon cycling pathways in different land-use types. Rates, ages and sources of respired CO2 varied across forests, grasslands, croplands, and managed peatlands. Our results suggest that the relationship between rates and ages of respired CO2 serves as a robust indicator of carbon retention or destabilization from natural to disturbed systems.
Chun Chung Yeung, Harald Bugmann, Frank Hagedorn, Margaux Moreno Duborgel, and Olalla Díaz-Yáñez
EGUsphere, https://doi.org/10.5194/egusphere-2025-1022, https://doi.org/10.5194/egusphere-2025-1022, 2025
Short summary
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To address the uncertain interactions between soil nitrogen (N) and carbon (C), we set up a model “experiment” in silico to test several hypothesized responses of decomposers to N. We found that decomposers were stimulated by N when decomposing high C:N detritus, but inhibited when decomposing low C:N, processed organic C. The consequence is that under exogenous N addition (e.g., contemporary N deposition), forests may accumulate light fraction C predominantly, at the expense of coarse detritus.
Marco M. Lehmann, Josie Geris, Ilja van Meerveld, Daniele Penna, Youri Rothfuss, Matteo Verdone, Pertti Ala-Aho, Matyas Arvai, Alise Babre, Philippe Balandier, Fabian Bernhard, Lukrecija Butorac, Simon Damien Carrière, Natalie C. Ceperley, Zuosinan Chen, Alicia Correa, Haoyu Diao, David Dubbert, Maren Dubbert, Fabio Ercoli, Marius G. Floriancic, Teresa E. Gimeno, Damien Gounelle, Frank Hagedorn, Christophe Hissler, Frédéric Huneau, Alberto Iraheta, Tamara Jakovljević, Nerantzis Kazakis, Zoltan Kern, Karl Knaebel, Johannes Kobler, Jiří Kocum, Charlotte Koeber, Gerbrand Koren, Angelika Kübert, Dawid Kupka, Samuel Le Gall, Aleksi Lehtonen, Thomas Leydier, Philippe Malagoli, Francesca Sofia Manca di Villahermosa, Chiara Marchina, Núria Martínez-Carreras, Nicolas Martin-StPaul, Hannu Marttila, Aline Meyer Oliveira, Gaël Monvoisin, Natalie Orlowski, Kadi Palmik-Das, Aurel Persoiu, Andrei Popa, Egor Prikaziuk, Cécile Quantin, Katja T. Rinne-Garmston, Clara Rohde, Martin Sanda, Matthias Saurer, Daniel Schulz, Michael Paul Stockinger, Christine Stumpp, Jean-Stéphane Venisse, Lukas Vlcek, Stylianos Voudouris, Björn Weeser, Mark E. Wilkinson, Giulia Zuecco, and Katrin Meusburger
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-409, https://doi.org/10.5194/essd-2024-409, 2024
Revised manuscript under review for ESSD
Short summary
Short summary
This study describes a unique large-scale isotope dataset to study water dynamics in European forests. Researchers collected data from 40 beech and spruce forest sites in spring and summer 2023, using a standardized method to ensure consistency. The results show that water sources for trees change between seasons and vary by tree species. This large dataset offers valuable information for understanding plant water use, improving ecohydrological models, and mapping water cycles across Europe.
Alexander S. Brunmayr, Frank Hagedorn, Margaux Moreno Duborgel, Luisa I. Minich, and Heather D. Graven
Geosci. Model Dev., 17, 5961–5985, https://doi.org/10.5194/gmd-17-5961-2024, https://doi.org/10.5194/gmd-17-5961-2024, 2024
Short summary
Short summary
A new generation of soil models promises to more accurately predict the carbon cycle in soils under climate change. However, measurements of 14C (the radioactive carbon isotope) in soils reveal that the new soil models face similar problems to the traditional models: they underestimate the residence time of carbon in soils and may therefore overestimate the net uptake of CO2 by the land ecosystem. Proposed solutions include restructuring the models and calibrating model parameters with 14C data.
Tatjana C. Speckert, Jeannine Suremann, Konstantin Gavazov, Maria J. Santos, Frank Hagedorn, and Guido L. B. Wiesenberg
SOIL, 9, 609–621, https://doi.org/10.5194/soil-9-609-2023, https://doi.org/10.5194/soil-9-609-2023, 2023
Short summary
Short summary
Soil organic carbon (SOC) is key player in the global carbon cycle. Afforestation on pastures potentially alters organic matter input and SOC sequestration. We investigated the effects of a Picea abies L. afforestation sequence (0 to 130 years) on a former subalpine pasture on SOC stocks and dynamics. We found no difference in the SOC stock after 130 years of afforestation and thus no additional SOC sequestration. SOC composition was altered due to a modified SOC input following afforestation.
Thomas Baer, Gerhard Furrer, Stephan Zimmermann, and Patrick Schleppi
Biogeosciences, 20, 4577–4589, https://doi.org/10.5194/bg-20-4577-2023, https://doi.org/10.5194/bg-20-4577-2023, 2023
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Nitrogen (N) deposition to forest ecosystems is a matter of concern because it affects their nutrient status and makes their soil acidic. We observed an ongoing acidification in a montane forest in central Switzerland even if the subsoil of this site contains carbonates and is thus well buffered. We experimentally added N to simulate a higher pollution, and this increased the acidification. After 25 years of study, however, we can see the first signs of recovery, also under higher N deposition.
Tegawende Léa Jeanne Ilboudo, Lucien NGuessan Diby, Delwendé Innocent Kiba, Tor Gunnar Vågen, Leigh Ann Winowiecki, Hassan Bismarck Nacro, Johan Six, and Emmanuel Frossard
EGUsphere, https://doi.org/10.5194/egusphere-2022-209, https://doi.org/10.5194/egusphere-2022-209, 2022
Preprint withdrawn
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Our results showed that at landscape level SOC stock variability was mainly explained by clay content. We found significant linear positive relationships between VC and SOC stocks for the land uses annual croplands, perennial croplands, grasslands and bushlands without soil depth restrictions until 110 cm. We concluded that in the forest-savanna transition zone, soil properties and topography determine land use, which in turn affects the stocks of SOC and TN and to some extent the VC stocks.
Jasmin Fetzer, Emmanuel Frossard, Klaus Kaiser, and Frank Hagedorn
Biogeosciences, 19, 1527–1546, https://doi.org/10.5194/bg-19-1527-2022, https://doi.org/10.5194/bg-19-1527-2022, 2022
Short summary
Short summary
As leaching is a major pathway of nitrogen and phosphorus loss in forest soils, we investigated several potential drivers in two contrasting beech forests. The composition of leachates, obtained by zero-tension lysimeters, varied by season, and climatic extremes influenced the magnitude of leaching. Effects of nitrogen and phosphorus fertilization varied with soil nutrient status and sorption properties, and leaching from the low-nutrient soil was more sensitive to environmental factors.
Philipp Baumann, Juhwan Lee, Emmanuel Frossard, Laurie Paule Schönholzer, Lucien Diby, Valérie Kouamé Hgaza, Delwende Innocent Kiba, Andrew Sila, Keith Sheperd, and Johan Six
SOIL, 7, 717–731, https://doi.org/10.5194/soil-7-717-2021, https://doi.org/10.5194/soil-7-717-2021, 2021
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This work delivers openly accessible and validated calibrations for diagnosing 26 soil properties based on mid-infrared spectroscopy. These were developed for four regions in Burkina Faso and Côte d'Ivoire, including 80 fields of smallholder farmers. The models can help to site-specifically and cost-efficiently monitor soil quality and fertility constraints to ameliorate soils and yields of yam or other staple crops in the four regions between the humid forest and the northern Guinean savanna.
Severin-Luca Bellè, Asmeret Asefaw Berhe, Frank Hagedorn, Cristina Santin, Marcus Schiedung, Ilja van Meerveld, and Samuel Abiven
Biogeosciences, 18, 1105–1126, https://doi.org/10.5194/bg-18-1105-2021, https://doi.org/10.5194/bg-18-1105-2021, 2021
Short summary
Short summary
Controls of pyrogenic carbon (PyC) redistribution under rainfall are largely unknown. However, PyC mobility can be substantial after initial rain in post-fire landscapes. We conducted a controlled simulation experiment on plots where PyC was applied on the soil surface. We identified redistribution of PyC by runoff and splash and vertical movement in the soil depending on soil texture and PyC characteristics (material and size). PyC also induced changes in exports of native soil organic carbon.
Hannah Gies, Frank Hagedorn, Maarten Lupker, Daniel Montluçon, Negar Haghipour, Tessa Sophia van der Voort, and Timothy Ian Eglinton
Biogeosciences, 18, 189–205, https://doi.org/10.5194/bg-18-189-2021, https://doi.org/10.5194/bg-18-189-2021, 2021
Short summary
Short summary
Understanding controls on the persistence of organic matter in soils is essential to constrain its role in the carbon cycle. Emerging concepts suggest that the soil carbon pool is predominantly comprised of stabilized microbial residues. To test this hypothesis we isolated microbial membrane lipids from two Swiss soil profiles and measured their radiocarbon age. We find that the ages of these compounds are in the range of millenia and thus provide evidence for stabilized microbial mass in soils.
Jolanda E. Reusser, René Verel, Daniel Zindel, Emmanuel Frossard, and Timothy I. McLaren
Biogeosciences, 17, 5079–5095, https://doi.org/10.5194/bg-17-5079-2020, https://doi.org/10.5194/bg-17-5079-2020, 2020
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Inositol phosphates (IPs) are a major pool of organic P in soil. However, information on their diversity and abundance in soil is limited. We isolated IPs from soil and characterised them using solution nuclear magnetic resonance (NMR) spectroscopy. For the first time, we provide direct spectroscopic evidence for the existence of a multitude of lower-order IPs in soil extracts previously not detected with NMR. Our findings will help provide new insight into the cycling of IPs in ecosystems.
Cited articles
Adamczyk, B., Sietiö, O. M., Straková, P., Prommer, J., Wild, B., Hagner, M., Pihlatie, M., Fritze, H., Richter, A., and Heinonsalo, J.: Plant roots increase both decomposition and stable organic matter formation in boreal forest soil, Nat. Commun., 10, 3982, https://doi.org/10.1038/s41467-019-11993-1, 2019.
Aerts, R.: Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: a triangular relationship, Oikos, 79, 439–449, https://doi.org/10.2307/3546886, 1997.
Asplund, J. and Wardle, D. A.: The impact of secondary compounds and functional characteristics on lichen palatability and decomposition, J. Ecol., 101, 689–700, https://doi.org/10.1111/1365-2745.12075, 2013.
Berg, B. and McClaugherty, C.: Decomposition as a process–some main features in plant litter: decomposition, humus formation, carbon sequestration, Springer International Publishing, Cham, https://doi.org/10.1007/978-3-030-59631-6_2, 13–43, 2020.
Brödlin, D., Kaiser, K., and Hagedorn, F.: Divergent patterns of carbon, nitrogen, and phosphorus mobilization in forest soils, Front. For. Glob. Chang., 2, 66, https://doi.org/10.3389/ffgc.2019.00066, 2019.
Brookes, P. C., Powlson, D. S., and Jenkinson, D. S.: Measurement of microbial biomass phosphorus in rhizosphere soil, Soil Biol. Biochem., 14, 319–329, https://doi.org/10.1016/0038-0717(82)90001-3, 1982.
Brookes, P. C., Landman, A., Pruden, G., and Jenkinson, D. S.: Chloroform fumigation and the release of soil nitrogen: A rapid direct extraction method to measure microbial biomass nitrogen in soil, Soil Biol. Biochem., 17, 837–842, https://doi.org/10.1016/0038-0717(85)90144-0, 1985.
Buckeridge, K. M., Zufelt, E., Chu, H., and Grogan, P.: Soil nitrogen cycling rates in low arctic shrub tundra are enhanced by litter feedbacks, Plant Soil, 330, 407–421, https://doi.org/10.1007/s11104-009-0214-8, 2010.
Büntgen, U., Piermattei, A., Crivellaro, A., Reinig, F., Krusic, P. J., Trnka, M., Torbenson, M., Esper, J.: Common Era treeline fluctuations and their implications for climate reconstructions, Global Planet. Change, 219, 103979, https://doi.org/10.1016/j.gloplacha.2022.103979, 2022.
Camenzind, T., Philipp Grenz, K., Lehmann, J., and Rillig, M. C.: Soil fungal mycelia have unexpectedly flexible stoichiometric C:N and C:P ratios, Ecol. Lett., 24, 208–218, https://doi.org/10.1111/ele.13632., 2021.
Canali, S. and Benedetti, A.: Soil nitrogen mineralization, in: Microbiological Methods for Assessing Soil Quality, edited by: Bloem, J., Hopkins, D. W., and Benedetti, A., CABI, Wallingford, UK, 23–49, ISBN: 978-1-84593-500-9, 2006.
Chen, Y., Liu, Y., Zhang, J., Yang, W., He, R., and Den, C.: Microclimate exerts greater control over litter decomposition and enzyme activity than litter quality in an alpine forest-tundra ecotone, Sci. Rep.-UK, 8, 14998, https://doi.org/10.1038/s41598-018-33186-4, 2018.
Cornwell, W. K., Cornelissen, J. H. C., Amatangelo, K., Dorrepaal, E., Eviner, V. T., Godoy, O., Hobbie, S. E., Hoorens, B., Kurokawa, H., Pérez-Harguindeguy, N., Quested, H. M., Santiago, L. S., Wardle, D. A., Wright, I. J., Aerts, R., Allison, S. D., Van Bodegom, P., Brovkin, V., Chatain, A., Callaghan, T. V., Díaz, S., Garnier, E., Gurvich, D. E., Kazakou, E., Klein, J. A., Read, J., Reich, P. B., Soudzilovskaia, N. A., Vaieretti, M. V., and Westoby, M.: Plant species traits are the predominant control on litter decomposition rates within biomes worldwide, Ecol. Lett., 11, 1065–1071, https://doi.org/10.1111/j.1461-0248.2008.01219.x, 2008.
Duboc, O., Zehetner, F., Djukic, I., Tatzber, M., Berger, T. W., and Gerzabek, M. H.: Decomposition of European beech and Black pine foliar litter along an Alpine elevation gradient: Mass loss and molecular characteristics, Geoderma, 189–190, 522–531, https://doi.org/10.1016/j.geoderma.2012.06.018, 2012.
Elser, J. J., Fagan, W. F., Kerkhoff, A. J., Swenson, N. G., and Enquist, B. J.: Biological stoichiometry of plant production: metabolism, scaling and ecological response to global change, New Phytol., 186, 593–608, https://doi.org/10.1111/j.1469-8137.2010.03214.x, 2010.
Fanin, N., Fromin, N., Barantal, S., and Hättenschwiler, S.: Stoichiometric plasticity of microbial communities is similar between litter and soil in a tropical rainforest, Sci. Rep.-UK, 7, 1–7, https://doi.org/10.1038/s41598-017-12609-8, 2017.
Fetzer, J., Frossard, E., Kaiser, K., and Hagedorn, F.: Leaching of inorganic and organic phosphorus and nitrogen in contrasting beech forest soils – seasonal patterns and effects of fertilization, Biogeosciences, 19, 1527–1546, https://doi.org/10.5194/bg-19-1527-2022, 2022.
Fetzer, J., Moiseev, P., Frossard, E., Kaiser, K., Mayer, M., Gavazov, K., and Hagedorn, F.: Plant-soil interactions drive nitrogen and phosphorus dynamics in an advancing subarctic treeline, Glob. Change Biol., 30, e17200, https://doi.org/10.1111/gcb.17200, 2024.
Frey, S. D., Lee, J., Melillo, J. M., and Six, J.: The temperature response of soil microbial efficiency and its feedback to climate, Nat. Clim. Change, 3, 395–398, https://doi.org/10.1038/nclimate1796, 2013.
Gao, D., Bai, E., Li, M., Zhao, C., Yu, K., and Hagedorn, F.: Responses of soil nitrogen and phosphorus cycling to drying and rewetting cycles: A meta-analysis, Soil Biol. Biochem., 148, 107896, https://doi.org/10.1016/j.soilbio.2020.107896, 2020.
Gao, D., Bai, E., Yang, Y., Zong, S., and Hagedorn, F.: A global meta-analysis on freeze-thaw effects on soil carbon and phosphorus cycling, Soil Biol. Biochem., 159, 108283, https://doi.org/10.1016/j.soilbio.2021.108283, 2021.
Gavazov, K. S.: Dynamics of alpine plant litter decomposition in a changing climate, Plant Soil, 337, 19–32, https://doi.org/10.1007/s11104-010-0477-0, 2010.
German, D. P., Weintraub, M. N., Grandy, A. S., Lauber, C. L., Rinkes, Z. L., and Allison, S. D.: Optimization of hydrolytic and oxidative enzyme methods for ecosystem studies, Soil Biol. Biochem., 43, 1387–1397, https://doi.org/10.1016/j.soilbio.2011.03.017, 2011.
Gustafson, A., Miller, P. A., Björk, R. G., Olin, S., and Smith, B.: Nitrogen restricts future sub-arctic treeline advance in an individual-based dynamic vegetation model, Biogeosciences, 18, 6329–6347, https://doi.org/10.5194/bg-18-6329-2021, 2021.
Hagedorn, F.: C-N-P-Release Treeline, EnviDat [data set], https://doi.org/10.16904/envidat.536, 2024.
Hagedorn, F. and Machwitz, M.: Controls on dissolved organic matter leaching from forest litter grown under elevated atmospheric CO2, Soil Biol. Biochem., 39, 1759–1769, https://doi.org/10.1016/j.soilbio.2007.01.038, 2007.
Hagedorn, F., Shiyatov, S. G., Mazepa, V. S., Devi, N. M., Grigor'ev, A. A., Bartysh, A. A., Fomin, V. V., Kapralov, D. S., Terent'ev, M., Bugman, H., and Rigling, A.: Treeline advances along the Urals mountain range–driven by improved winter conditions? Glob. Change Biol., 20, 3530–3543, https://doi.org/10.1111/gcb.12613, 2014.
Hagedorn, F., Gavazov, K., and Alexander, J. M.: Above- and belowground linkages shape responses of mountain vegetation to climate change, Science, 365, 1119–1123, https://doi.org/10.1126/science.aax4737, 2019.
Hagedorn, F., Dawes, M. A., Bubnov, M. O., Devi, N. M., Grigoriev, A. A., Mazepa, V. S., and Moiseev P. A.: Latitudinal decline in stand biomass and productivity at the elevational treeline in the Ural mountains despite a common thermal growth limit, J. Biogeogr., 47, 1827–1842, https://doi.org/10.1111/jbi.13867, 2020.
Heuck, C. and Spohn, M.: Carbon, nitrogen and phosphorus net mineralization in organic horizons of temperate forests: stoichiometry and relations to organic matter quality, Biogeochemistry, 131, 229–242, https://doi.org/10.1007/s10533-016-0276-7, 2016.
Joly, F. X., Scherer-Lorenzen, M., and Hättenschwiler, S.: Resolving the intricate role of climate in litter decomposition, Nat. Ecol. Evol., 7, 214–223, https://doi.org/10.1038/s41559-022-01948-z, 2023.
Kaiser, C., Franklin, O., Richter, A., and Dieckmann, U.: Social dynamics within decomposer communities lead to nitrogen retention and organic matter build-up in soils, Nat. Commun., 6, 8960, https://doi.org/10.1038/ncomms9960, 2015.
Kammer, A., Hagedorn, F., Shevchenko, I., Leifeld, J., Guggenberger, G., Goryacheva, T., Rigling, A., and Moiseev, P. A.: Treeline shifts in the Ural mountains affect soil organic matter dynamics, Glob. Change Biol., 15, 1570–1583, https://doi.org/10.1111/j.1365-2486.2009.01856.x, 2009.
Knops, J. M. H., Bradley, K. L., and Wedin, D. A.: Mechanisms of plant species impacts on ecosystem nitrogen cycling, Ecol. Lett., 5, 454–466, https://doi.org/10.1046/j.1461-0248.2002.00332.x, 2002.
Körner, C. and Paulsen, J.: A world-wide study of high altitude treeline temperatures, J. Biogeogr., 31, 713–732, https://doi.org/10.1111/j.1365-2699.2003.01043.x, 2004.
Liu, Y., Chen, Y., Zhang, J., Yang, W., Peng, Z., He, X., Deng, C., and He, R.: Changes in foliar litter decomposition of woody plants with elevation across an alpine forest–tundra ecotone in eastern Tibet Plateau, Plant Ecol., 217, 495–504, https://doi.org/10.1007/s11258-016-0594-9, 2016.
Liu, Y., Wang, L., He, R., Chen, Y., Xu, Z., Tan, B., Zhang, L., Xiao, J., Zhu, P., and Chen, L.: Higher soil fauna abundance accelerates litter carbon release across an alpine forest-tundra ecotone, Sci. Rep.-UK, 9, 10561, https://doi.org/10.1038/s41598-019-47072-0, 2019.
Loladze, I. and Elser, J. J.: The origins of the Redfield nitrogen-to-phosphorus ratio are in a homoeostatic protein-to-rRNA ratio, Ecol. Lett., 14, 244–250, https://doi.org/10.1111/j.1461-0248.2010.01577.x, 2011.
Makarov, M. I., Malysheva, T. I., Menyailo, O. V., Soudzilovskaia, N. A., Van Logtestijn, R. S. P., and Cornelissen, J. H. C.: Effect of K2SO4 concentration on extractability and isotope signature (δ13C and δ15N) of soil C and N fractions, Eur. J. Soil Sci., 66, 417–426, https://doi.org/10.1111/ejss.12243, 2015.
Manzoni, S., Schimel, J. P., and Porporato, A.: Responses of soil microbial communities to water stress: Results from a meta-analysis, Ecology, 93, 930–938, https://doi.org/10.1890/11-0026.1, 2012.
Manzoni, S., Chakrawal, A., Spohn, M., and Lindahl, B. D.: Modeling microbial adaptations to nutrient limitation during litter decomposition, Front. For. Glob. Chang., 4, 1–23, https://doi.org/10.3389/ffgc.2021.686945, 2021.
Mayor, J. R., Sanders, N. J., Classen, A. T., Bardgett, R. D., Clément, J. C., Fajardo, A., Lavorel, S., Sundqvist, M. K., Bahn, M., Chusholm, C., Cieraad, E., Gedalof, Z., Kudo, K. G., Oberski, D. L., and Wardle, D. A.: Elevation alters ecosystem properties across temperate treelines globally, Nature, 542, 91–95, https://doi.org/10.1038/nature21027, 2017.
Möhl, P., Mörsdorf, M. A., Dawes, M. A., Hagedorn, F., Bebi, P., Viglietti, D., Freppaz, M., Wipf, S., Körner, C., Thomas, F. M., and Rixen, C.: Twelve years of low nutrient input stimulates growth of trees and dwarf shrubs in the treeline ecotone, J. Ecol., 1–13, https://doi.org/10.1111/1365-2745.13073, 2018.
Moiseev, P. A., Hagedorn, F., Balakin, D. S., Bubnov, M. O., Devi, N. M., Kukarskih, V. V., Mazepa, V. S., Viyukhina, S. O., and Grigoriev, A. A.: Stand biomass at treeline ecotone in Russian Subarctic Mountains is primarily related to species composition but its dynamics driven by improvement of climatic conditions, Forests, 13, 254, https://doi.org/10.3390/f13020254, 2022.
Moore, T. R., Trofymow, J. A., Prescott, C. E., and Titus, B. D.: Nature and nurture in the dynamics of C, N and P during litter decomposition in Canadian forests, Plant Soil, 339, 163–175, https://doi.org/10.1007/s11104-010-0563-3, 2011.
Mooshammer, M., Wanek, W., Zechmeister-Boltenstern, S., and Richter, A.: Stoichiometric imbalances between terrestrial decomposer communities and their resources: Mechanisms and implications of microbial adaptations to their resources, Front. Microbiol., 5, 1–10, https://doi.org/10.3389/fmicb.2014.00022, 2014.
Mouginot, C., Kawamura, R., Matulich, K. L., Berlemont, R., Allison, S. D., Amend, A. S., and Martiny, A. C.: Elemental stoichiometry of Fungi and Bacteria strains from grassland leaf litter, Soil Biol. Biochem., 76, 278–285, https://doi.org/10.1016/j.soilbio.2014.05.011, 2014.
Müller, M., Alewell, C., and Hagedorn, F.: Effective retention of litter-derived dissolved organic carbon in organic layers, Soil Biol. Biochem., 41, 1066–1074, https://doi.org/10.1016/j.soilbio.2009.02.007, 2009.
Nadelhoffer, K. J., Giblin, A. E., Shaver, G. R., and Laundre, J. A.: Effects of temperature and substrate quality on element mineralization in six arctic soils, Ecology, 72, 242–253, https://doi.org/10.2307/1938918, 1991.
Ohno, T. and Zibilske, L. M.: Determination of low concentrations of phosphorus in soil extracts using malachite green, Soil Sci. Soc. Am. J., 55, 892–895, https://doi.org/10.2136/sssaj1991.03615995005500030046x, 1991.
Parker, T. C., Sanderman, J., Holden, R. D., Blume-Werry, G., Sjögersten, S., Large, D., Castro-Diaz, M., Street, L. E., Subke, J. A., and Wookey, PA.: Exploring drivers of litter decomposition in a greening Arctic: results from a transplant experiment across a treeline, Ecology, 99, 2284–2294, https://doi.org/10.1002/ecy.2442, 2018.
Pinheiro, J., Bates, D., DebRoy, S., Sarkar, D., and R Core Team: nlme: Linear and Nonlinear Mixed Effects Models, https://cran.r-project.org/package=nlme (last access: 5 July 2024), 2021.
R Core Team: R: A language and environment for statistical computing, https://www.r-project.org/ (last access: 27 November 2024), 2020.
Rousk, K., Degboe, J., Michelsen, A., Bradley, R., and Bellenger, J.-P.: Molybdenum and phosphorus limitation of moss-associated nitrogen fixation in boreal ecosystems, New Phytol., 214, 97–107, https://doi.org/10.1111/nph.14331, 2017.
Sainte-Marie, J., Barrandon, M., Saint-André, L., Gelhaye, E., Martin, F., and Derrien, D.: C-STABILITY an innovative modeling framework to leverage the continuous representation of organic matter, Nat. Commun., 12, 1–13, https://doi.org/10.1038/s41467-021-21079-6, 2021.
Saiya-Cork, K. R., Sinsabaugh, R. L., and Zak, D. R.: The effects of long term nitrogen deposition on extracellular enzyme activity in an Acer saccharum forest soil, Soil Biol. Biochem., 34, 1309–1315, https://doi.org/10.1016/S0038-0717(02)00074-3, 2002.
Siegenthaler, M. B., McLaren TI, Frossard E, and Tamburini, F.: Dual isotopic (33P and 18O) tracing and solution 31P NMR spectroscopy to reveal organic phosphorus synthesis in organic soil horizons, Soil Biol. Biochem., 197, 109519, https://doi.org/10.1016/j.soilbio.2024.109519, 2024.
Solly, E. F., Lindahl, B. D., Dawes, M. A., Peter, M., Souza, R. C., Rixen, C., and Hagedorn, F.: Experimental soil warming shifts the fungal community composition at the alpine treeline, New Phytol., 215, 766–778, https://doi.org/10.1111/nph.14603, 2017a.
Solly, E. F., Djukic, I., Moiseev, P. A., Andreyashkina, N. I., Devi, N. M., Göransson, H., Mazepa, V. S., Moiseev, P. A., Shiyatov, S. G., Trubina, M. R., Schweingruber, F. H., Wilmking, M, and Hagedorn, F.: Treeline advances and associated shifts in the ground vegetation alter fine root dynamics and mycelia production in the South and Polar Urals, Oecologia, 183, 571–586, https://doi.org/10.1007/s00442-016-3785-0, 2017b.
Spohn, M.: Microbial respiration per unit microbial biomass depends on litter layer carbon-to-nitrogen ratio, Biogeosciences, 12, 817–823, https://doi.org/10.5194/bg-12-817-2015, 2015.
Spohn, M. and Berg, B.: Import and release of nutrients during the first five years of plant litter decomposition, Soil Biol. Biochem., 176, 108878, https://doi.org/10.1016/j.soilbio.2022.108878, 2023.
Spohn, M. and Widdig, M.: Turnover of carbon and phosphorus in the microbial biomass depending on phosphorus availability, Soil Biol. Biochem., 113, 53–59, https://doi.org/10.1016/j.soilbio.2017.05.017, 2017.
Sullivan, P. F., Ellison, S. B. Z., McNown, R. W., Brownlee, A. H., and Sveinbjörnsson, B.: Evidence of soil nutrient availability as the proximate constraint on growth of treeline trees in northwest Alaska, Ecology, 96, 716–727, https://doi.org/10.1890/14-0626.1, 2015.
Sveinbjörnsson, B.: North American and European treelines: External forces and internal processes controlling position, Ambio, 29, 388–395, https://doi.org/10.1579/0044-7447-29.7.388, 2000.
Tatzber, M., Mutsch, F., Mentler, A., Leitgeb, E., Englisch, M., and Gerzabek, M. H.: Determination of organic and inorganic carbon in forest soil samples by mid-infrared spectroscopy and partial least squares regression, Appl. Spectrosc., 64, 1167–1175, https://doi.org/10.1366/000370210792973460, 2010.
Tiessen, H. and Moir, J. O.: Characterization of available P by sequential extraction, in: Soil sampling and methods of analysis, edited by: Carter, M. R. and Gregorich, E. G., Canadian Society of Soil Science, 293–306, Boca Raton, ISBN-10: 0873718615, 1993.
Vance, E. D., Brookes, P. C., and Jenkinson, D. S.: Microbial biomass measurements in forest soils: The use of the chloroform fumigation-incubation method in strongly acid soils, Soil Biol. Biochem., 19, 697–702, https://doi.org/10.1016/0038-0717(87)90051-4, 1987.
Wang, L., Chen, Y., Zhou, Y., Zheng, H., Xu, Z., Tan, B., You C., Zhang L., Li, H., Guo L., Wang L., Huang, Y, Zhang, J., and Liu, Y.: Litter chemical traits strongly drove the carbon fractions loss during decomposition across an alpine treeline ecotone, Sci. Total Environ., 753, 142287, https://doi.org/10.1016/j.scitotenv.2020.142287, 2021.
Weintraub, M. N. and Schimel, J. P.: The seasonal dynamics of amino acids and other nutrients in Alaskan Arctic tundra soils, Biogeochemistry, 73, 359–380, https://doi.org/10.1007/s10533-004-0363-z, 2005.
Wu, J., Joergensen, R. G., Pommerening, B., Chaussod, R., and Brookes, P. C.: Measurement of soil microbial biomass C by fumigation-extraction-an automated procedure. Soil Biol. Biochem., 22, 1167–1169, https://doi.org/10.1016/0038-0717(90)90046-3, 1990.
Yuan, Z. Y. and Chen, H. Y. H.: Global trends in senesced-leaf nitrogen and phosphorus, Global Ecol. Biogeogr., 18, 532–542, https://doi.org/10.1111/j.1466-8238.2009.00474.x, 2009.
Zechmeister-Boltenstern, S., Keiblinger, K. M., Mooshammer, M., Peñuelas, J., Richter, A., Sardans, J., and Wanek, W.: The application of ecological stoichiometry to plant-microbial-soil organic matter transformations, Ecol. Monogr., 85, 133–155, https://doi.org/10.1890/14-0777.1, 2015.
Zhang, J. and Elser, J. J.: Carbon: Nitrogen: Phosphorus stoichiometry in fungi: A meta-analysis, Front. Microbiol., 8, 1–9, https://doi.org/10.3389/fmicb.2017.01281, 2017.
Zheng, H., Chen, Y., Liu, Y., Zhang, J., Yang, W., Yang, L., Li, H., Wang, L., Wu, F., and Guo, L.: Litter quality drives the differentiation of microbial communities in the litter horizon across an alpine treeline ecotone in the eastern Tibetan Plateau, Sci. Rep.-UK, 8, 1–11, https://doi.org/10.1038/s41598-018-28150-1, 2018.
Short summary
At treeline, plant species change abruptly from low-stature plants in tundra to trees in forests. Our study documents that from tundra towards forest, the litter layer becomes strongly enriched in nutrients. We show that these litter quality changes alter nutrient processing by soil microbes and increase nutrient release during decomposition in forests compared to tundra. The associated improvement in nutrient availability in forests potentially stimulates tree growth and treeline shifts.
At treeline, plant species change abruptly from low-stature plants in tundra to trees in...
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