Soil properties as key predictors of global grassland production: Have we overlooked micronutrients?

Autor: Radujković D; Department of Biology, Plants and Ecosystems, University of Antwerp, Wilrijk, Belgium., Verbruggen E; Department of Biology, Plants and Ecosystems, University of Antwerp, Wilrijk, Belgium., Seabloom EW; Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, Minnesota, USA., Bahn M; Department of Ecology, University of Innsbruck, Innsbruck, Austria., Biederman LA; Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, Iowa, USA., Borer ET; Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, Minnesota, USA., Boughton EH; Archbold Biological Station, Buck Island Ranch Agroecology Program, Lake Placid, Florida, USA., Catford JA; Department of Geography, King's College London, London, UK., Campioli M; Department of Biology, Plants and Ecosystems, University of Antwerp, Wilrijk, Belgium., Donohue I; Department of Zoology, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland., Ebeling A; Institute of Ecology and Evolution, University Jena, Jena, Germany., Eskelinen A; Physiological Diversity, UFZ, Helmholtz Centre for Environmental Research, Leipzig, Germany.; German Centre for Integrative Biodiversity Research (iDiv) Halle-Leipzig-Jena, Leipzig, Germany.; Ecology & Genetics, University of Oulu, Oulu, Finland., Fay PA; USDA-ARS Grassland Soil and Water Research Laboratory, Temple, Texas, USA., Hansart A; Département de biologie, CNRS, UMS 3194, Centre de recherche en écologie expérimentale et prédictive (CEREEP-Ecotron IleDeFrance), Ecole normale supérieure, PSL University, Saint-Pierre-lès-Nemours, France., Knops JMH; Department of Health and Environmental Sciences, Xián Jiaotong-Liverpool University, Suzhou, China., MacDougall AS; Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada., Ohlert T; Department of Biology, 1 University of New Mexico, University of New Mexico, Albuquerque, New Mexico, USA., Olde Venterink H; Department of Biology, Vrije Universiteit Brussel, Brussels, Belgium., Raynaud X; UPEC, Institute of Ecology and Environmental Sciences-Paris, Sorbonne Université, CNRS, IRD, INRAE, Université de Paris, Paris, France., Risch AC; Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland., Roscher C; Physiological Diversity, UFZ, Helmholtz Centre for Environmental Research, Leipzig, Germany.; German Centre for Integrative Biodiversity Research (iDiv) Halle-Leipzig-Jena, Leipzig, Germany., Schütz M; Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland., Silveira ML; Range Cattle Research and Education Center, University of Florida, Ona, Florida, USA., Stevens CJ; Lancaster Environment Centre, Lancaster University, Lancaster, UK., Van Sundert K; Department of Biology, Plants and Ecosystems, University of Antwerp, Wilrijk, Belgium., Virtanen R; Ecology & Genetics, University of Oulu, Oulu, Finland., Wardle GM; School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales, Australia., Wragg PD; Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, Minnesota, USA., Vicca S; Department of Biology, Plants and Ecosystems, University of Antwerp, Wilrijk, Belgium.
Jazyk: angličtina
Zdroj: Ecology letters [Ecol Lett] 2021 Dec; Vol. 24 (12), pp. 2713-2725. Date of Electronic Publication: 2021 Oct 06.
DOI: 10.1111/ele.13894
Abstrakt: Fertilisation experiments have demonstrated that nutrient availability is a key determinant of biomass production and carbon sequestration in grasslands. However, the influence of nutrients in explaining spatial variation in grassland biomass production has rarely been assessed. Using a global dataset comprising 72 sites on six continents, we investigated which of 16 soil factors that shape nutrient availability associate most strongly with variation in grassland aboveground biomass. Climate and N deposition were also considered. Based on theory-driven structural equation modelling, we found that soil micronutrients (particularly Zn and Fe) were important predictors of biomass and, together with soil physicochemical properties and C:N, they explained more unique variation (32%) than climate and N deposition (24%). However, the association between micronutrients and biomass was absent in grasslands limited by NP. These results highlight soil properties as key predictors of global grassland biomass production and point to serial co-limitation by NP and micronutrients.
(© 2021 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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