Document Type
Article
Publication Date
6-2023
Publication Title
Global Biogeochemical Cycles
Abstract
Understanding the chemical composition of our planet's crust was one of the biggest questions of the 20th century. More than 100 years later, we are still far from understanding the global patterns in the bioavailability and spatial coupling of elements in topsoils worldwide, despite their importance for the productivity and functioning of terrestrial ecosystems. Here, we measured the bioavailability and coupling of thirteen macro- and micronutrients and phytotoxic elements in topsoils (3–8 cm) from a range of terrestrial ecosystems across all continents (∼10,000 observations) and in response to global change manipulations (∼5,000 observations). For this, we incubated between 1 and 4 pairs of anionic and cationic exchange membranes per site for a mean period of 53 days. The most bioavailable elements (Ca, Mg, and K) were also amongst the most abundant in the crust. Patterns of bioavailability were biome-dependent and controlled by soil properties such as pH, organic matter content and texture, plant cover, and climate. However, global change simulations resulted in important alterations in the bioavailability of elements. Elements were highly coupled, and coupling was predictable by the atomic properties of elements, particularly mass, mass to charge ratio, and second ionization energy. Deviations from the predictable coupling-atomic mass relationship were attributed to global change and agriculture. Our work illustrates the tight links between the bioavailability and coupling of topsoil elements and environmental context, human activities, and atomic properties of elements, thus deeply enhancing our integrated understanding of the biogeochemical connections that underlie the productivity and functioning of terrestrial ecosystems in a changing world.
Recommended Citation
Ochoa-Hueso, Raúl; Delgado-Baquerizo, Manuel; Risch, Anita C.; Ashton, Louise; Augustine, David; Bélanger, Nicolas; Bridgham, Scott; Britton, Andrea J.; Bruckman, Viktor J.; Camarero, J. Julio; Cornelissen, Gerard; Crawford, John A.; Dijkstra, Feike A.; Diochon, Amanda; Earl, Stevan; Edgerley, James; Epstein, Howard; Felton, Andrew; Fortier, Julien; Gagnon, Daniel; Greer, Ken; Griffiths, Hannah M.; Halde, Caroline; Hanslin, Hans Martin; Harris, Lorna I.; Hartsock, Jeremy A.; Hendrickson, Paul; Hovstad, Knut Anders; Hu, Jia; Jani, Arun D.; Kent, Kelcy; Kerdraon-Byrne, Deirdre; Khalsa, Sat Darshan S.; Lai, Derrick Y. F.; Lambert, France; LaMontagne, Jalene M.; Lavergne, Stéphanie; Lawrence, Beth A.; Littke, Kim; Leeper, Abigail C.; Licht, Mark A.; Leibig, Mark A.; Lynn, Joshua S.; Maclean, Janet F.; Martinsen, Vegard; McDaniel, Marshall D.; McIntosh, Anne C. S.; Miesel, Jessica R.; Miller, Jim; Mulvaney, Michael J.; Moreno, Gerardo; Newstead, Laura; Pakeman, Robin J.; Pergl, Jan; Pinno, Bradley D.; Piñeiro, Juan; Quigley, Kathleen; Radtke, Troy M.; Reed, Paul; Rolo, Víctor; Rudgers, Jennifer; Rutherford, P. Michael; Sayer, Emma J.; Serrano-Grijalva, Lilia; Strack, Maria; Sukdeo, Nicole; Taylor, Andy F. S.; Truax, Benoit; Tsuji, Leonard J. S.; van Gestel, Natasja; Vaness, Brenda M.; Van Sundert, Kevin; Vítková, Michaela; Weigel, Robert; Wilton, Meaghan J.; Yano, Yuriko; Teen, Ewing; and Bremer, Eric, "Bioavailability of Macro and Micronutrients Across Global Topsoils: Main Drivers and Global Change Impacts" (2023). Biology and Chemistry Faculty Publications and Presentations. 35.
https://digitalcommons.csumb.edu/biochem_fac/35
Comments
Published in Global Biogeochemical Cycles by American Geophysical Union. Available via doi: 10.1029/2022GB007680.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.