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Soil net nitrogen mineralisation across global grasslands

  • A C Risch
  • , S Zimmermann
  • , R Ochoa-Hueso
  • , M Schütz
  • , B Frey
  • , J L Firn
  • , P A Fay
  • , F Hagedorn
  • , E T Borer
  • , E W Seabloom
  • , W S Harpole
  • , J M H Knops
  • , R L McCulley
  • , A A D Broadbent
  • , C J Stevens
  • , M L Silveira
  • , P B Adler
  • , S Báez
  • , L A Biederman
  • , J M Blair
  • C S Brown, M C Caldeira, S L Collins, P Daleo, A di Virgilio, A Ebeling, N Eisenhauer, E Esch, A Eskelinen, N Hagenah, Y Hautier, K P Kirkman, A S MacDougall, J L Moore, S A Power, S M Prober, C Roscher, M Sankaran, J Siebert, K L Speziale, P M Tognetti, R Virtanen, L Yahdjian, B Moser
  • Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zuercherstrasse 111, 8903, Birmensdorf, Switzerland. [email protected].
  • Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zuercherstrasse 111, 8903, Birmensdorf, Switzerland.
  • Department of Biology, IVAGRO, University of Cádiz, Campus de Excelencia Internacional Agroalimentario (ceiA3), Campus Rio San Pedro, 11510, Puerto Real, Cádiz, Spain.
  • Queensland University of Technology (QUT), School of Earth, Environmental and Biological Sciences, Science and Engineering Faculty, Brisbane, QLD, 4001, Australia.
  • USDA-ARS Grassland Soil, and Water Research Laboratory, Temple, TX, 76502, USA.
  • University of Minnesota Twin Cities
  • Institute of Biology, Martin Luther University Halle-Wittenberg, Am Kirchtor 1, Halle (Saale), 06108, Germany.
  • Department of Health and Environmental Sciences, Xi'an Jiaotong Liverpool University, Suzhou, 215213, China.
  • Department of Plant & Soil Sciences, University of Kentucky, Lexington, KY, 40546-0312, USA.
  • Lancaster University
  • University of Florida, Range Cattle Research and Education Center, Ona, FL, 33865, USA.
  • Department of Wildland Resources and the Ecology Center, Utah State University, 5230 Old Main, Logan, UT, 84103, USA.
  • Departamento de Biología, Escuela Politécnica Nacional del Ecuador, Ladrón de Guevera E11-253 y Andalucía, Quito, Ecuador.
  • Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA, 50011, USA.
  • Division of Biology, Kansas State University, Manhattan, KS, 66502, USA.
  • Department of Bioagricultural Sciences and Pest Management, Graduate Degree Program in Ecology, Colorado State University, 1177 Campus Delivery, Fort Collins, CO, USA.
  • Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisboa, Portugal.
  • Department of Biology, University of New Mexico, Albuquerque, NM, 87131, USA.
  • Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata, CONICET, Mar del Plata, Argentina.
  • INIBIOMA (CONICET-UNCOMA), Universidad Nacional del Comahue, Grupo de Investigaciones en Biología de la Conservación (GrInBiC) Laboratorio Ecotono, Quintral, 1250, Bariloche, Argentina.
  • Institute of Ecology and Evolution, Friedrich-Schiller-University Jena, Dornburger Str. 159, 07743, Jena, Germany.
  • German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany.; Institute of Biology, Leipzig University, Johannisallee 21, 04103 Leipzig, Germany.
  • University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92037, USA.
  • Department of Ecology and Genetics, University of Oulu, Pentti Kaiteran katu 1, 90014, Oulu, Finland.
  • Mammal Research Institute, Department of Zoology & Entomology, University of Pretoria, Pretoria, South Africa.
  • University of KwaZulu-Natal, Pietermaritzburg, Private Bag X01, Scottsville, 3209, South Africa.
  • University of Guelph
  • School of Biological Sciences, Monash University, Claytion, VIC, 3800, Australia.
  • Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia.
  • CSIRO Land and Water, Private Bag 5, Wembley, WA, 6913, Australia.
  • School of Biology, University of Leeds, Leeds, LS2 9JT, UK.
  • Universidad de Buenos Aires, Facultad de Agronomía, Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura (IFEVA), CONICET, Buenos Aires, Argentina.

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Soil nitrogen mineralisation (Nmin), the conversion of organic into inorganic N, is important for productivity and nutrient cycling. The balance between mineralisation and immobilisation (net Nmin) varies with soil properties and climate. However, because most global-scale assessments of net Nmin are laboratory-based, its regulation under field-conditions and implications for real-world soil functioning remain uncertain. Here, we explore the drivers of realised (field) and potential (laboratory) soil net Nmin across 30 grasslands worldwide. We find that realised Nmin is largely explained by temperature of the wettest quarter, microbial biomass, clay content and bulk density. Potential Nmin only weakly correlates with realised Nmin, but contributes to explain realised net Nmin when combined with soil and climatic variables. We provide novel insights of global realised soil net Nmin and show that potential soil net Nmin data available in the literature could be parameterised with soil and climate data to better predict realised Nmin.

Original languageEnglish
Article number4981
Number of pages10
JournalNature Communications
Volume10
Issue number1
DOIs
Publication statusPublished - 2019

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