Articles | Volume 20, issue 3
https://doi.org/10.5194/bg-20-505-2023
https://doi.org/10.5194/bg-20-505-2023
Research article
 | Highlight paper
 | 
02 Feb 2023
Research article | Highlight paper |  | 02 Feb 2023

The influence of elevated CO2 and soil depth on rhizosphere activity and nutrient availability in a mature Eucalyptus woodland

Johanna Pihlblad, Louise C. Andresen, Catriona A. Macdonald, David S. Ellsworth, and Yolima Carrillo

Related authors

The role of mycorrhizal type and plant dominance in regulating nitrogen cycling in Oroarctic soils
Aurora Patchett, Louise Rütting, Tobias Rütting, Samuel Bodé, Sara Hallin, Jaanis Juhanson, C. Florian Stange, Mats P. Björkman, Pascal Boeckx, Gunhild Rosqvist, and Robert G. Björk
EGUsphere, https://doi.org/10.5194/egusphere-2025-2179,https://doi.org/10.5194/egusphere-2025-2179, 2025
This preprint is open for discussion and under review for Biogeosciences (BG).
Short summary
Non-mycorrhizal root-associated fungi increase soil C stocks and stability via diverse mechanisms
Emiko K. Stuart, Laura Castañeda-Gómez, Wolfram Buss, Jeff R. Powell, and Yolima Carrillo
Biogeosciences, 21, 1037–1059, https://doi.org/10.5194/bg-21-1037-2024,https://doi.org/10.5194/bg-21-1037-2024, 2024
Short summary
Evaluating a land surface model at a water-limited site: implications for land surface contributions to droughts and heatwaves
Mengyuan Mu, Martin G. De Kauwe, Anna M. Ukkola, Andy J. Pitman, Teresa E. Gimeno, Belinda E. Medlyn, Dani Or, Jinyan Yang, and David S. Ellsworth
Hydrol. Earth Syst. Sci., 25, 447–471, https://doi.org/10.5194/hess-25-447-2021,https://doi.org/10.5194/hess-25-447-2021, 2021
Short summary
Low sensitivity of gross primary production to elevated CO2 in a mature eucalypt woodland
Jinyan Yang, Belinda E. Medlyn, Martin G. De Kauwe, Remko A. Duursma, Mingkai Jiang, Dushan Kumarathunge, Kristine Y. Crous, Teresa E. Gimeno, Agnieszka Wujeska-Klause, and David S. Ellsworth
Biogeosciences, 17, 265–279, https://doi.org/10.5194/bg-17-265-2020,https://doi.org/10.5194/bg-17-265-2020, 2020
Short summary
The quasi-equilibrium framework revisited: analyzing long-term CO2 enrichment responses in plant–soil models
Mingkai Jiang, Sönke Zaehle, Martin G. De Kauwe, Anthony P. Walker, Silvia Caldararu, David S. Ellsworth, and Belinda E. Medlyn
Geosci. Model Dev., 12, 2069–2089, https://doi.org/10.5194/gmd-12-2069-2019,https://doi.org/10.5194/gmd-12-2069-2019, 2019
Short summary

Related subject area

Biogeochemistry: Soils
Modelling the effect of climate–substrate interactions on soil organic matter decomposition with the Jena Soil Model
Marleen Pallandt, Marion Schrumpf, Holger Lange, Markus Reichstein, Lin Yu, and Bernhard Ahrens
Biogeosciences, 22, 1907–1928, https://doi.org/10.5194/bg-22-1907-2025,https://doi.org/10.5194/bg-22-1907-2025, 2025
Short summary
Solubility characteristics of soil humic substances as a function of pH: mechanisms and biogeochemical perspectives
Xuemei Yang, Jie Zhang, Khan M. G. Mostofa, Mohammad Mohinuzzaman, H. Henry Teng, Nicola Senesi, Giorgio S. Senesi, Jie Yuan, Yu Liu, Si-Liang Li, Xiaodong Li, Baoli Wang, and Cong-Qiang Liu
Biogeosciences, 22, 1745–1765, https://doi.org/10.5194/bg-22-1745-2025,https://doi.org/10.5194/bg-22-1745-2025, 2025
Short summary
Exploring microscale heterogeneity as a driver of biogeochemical transformations and gas transport in peat
Lukas Kohl, Petri Kiuru, Marjo Palviainen, Maarit Raivonen, Markku Koskinen, Mari Pihlatie, and Annamari Laurén
Biogeosciences, 22, 1711–1727, https://doi.org/10.5194/bg-22-1711-2025,https://doi.org/10.5194/bg-22-1711-2025, 2025
Short summary
Dissolved organic matter fosters core mercury-methylating microbiomes for methylmercury production in paddy soils
Qiang Pu, Bo Meng, Jen-How Huang, Kun Zhang, Jiang Liu, Yurong Liu, Mahmoud A. Abdelhafiz, and Xinbin Feng
Biogeosciences, 22, 1543–1556, https://doi.org/10.5194/bg-22-1543-2025,https://doi.org/10.5194/bg-22-1543-2025, 2025
Short summary
A microbially driven and depth-explicit soil organic carbon model constrained by carbon isotopes to reduce parameter equifinality
Marijn Van de Broek, Gerard Govers, Marion Schrumpf, and Johan Six
Biogeosciences, 22, 1427–1446, https://doi.org/10.5194/bg-22-1427-2025,https://doi.org/10.5194/bg-22-1427-2025, 2025
Short summary

Cited articles

Achat, D. L., Augusto, L., Gallet-Budynek, A., and Loustau, D.: Future challenges in coupled C–N–P cycle models for terrestrial ecosystems under global change: a review, Biogeochemistry, 131, 173–202, https://doi.org/10.1007/s10533-016-0274-9, 2016. 
Adeleke, R., Nwangburuka, C., and Oboirien, B.: Origins, roles and fate of organic acids in soils: A review, South Afr. J. Bot., 108, 393–406, https://doi.org/10.1016/j.sajb.2016.09.002, 2017. 
Ainsworth, E. A. and Long, S. P.: What have we learned from 15 years of free-air CO2 enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2, New Phytol., 165, 351–372, https://doi.org/10.1111/j.1469-8137.2004.01224.x, 2005. 
Allison, S. D. and Vitousek, P. M.: Responses of extracellular enzymes to simple and complex nutrient inputs, Soil Biol. Biochem., 37, 937–944, https://doi.org/10.1016/j.soilbio.2004.09.014, 2005. 
Andresen, L. C., Carrillo, Y., Macdonald, C. A., Castañeda-Gómez, L., Bodé, S., and Rütting, T.: Nitrogen dynamics after two years of elevated CO2 in phosphorus limited Eucalyptus woodland, Biogeochemistry, 150, 297–312, https://doi.org/10.1007/s10533-020-00699-y, 2020. 
Download
Co-editor-in-chief
This paper advances our understanding of forest responses to elevated CO2 by considering implications for nutrient availability across the soil profile and the particular role of nutrient recycling in the rhizosphere versus soil organic matter mineralization.
Short summary
Elevated CO2 in the atmosphere increases forest biomass productivity when growth is not limited by soil nutrients. This study explores how mature trees stimulate soil availability of nitrogen and phosphorus with free-air carbon dioxide enrichment after 5 years of fumigation. We found that both nutrient availability and processes feeding available pools increased in the rhizosphere, and phosphorus increased at depth. This appears to not be by decomposition but by faster recycling of nutrients.
Share
Altmetrics
Final-revised paper
Preprint