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Interactions among nutrients govern the global grassland biomass–precipitation relationship

Identification

Public canonical key

radar:r-e9941b7d4763045d59a23a6bf326d839

Authors

Philip A. Fay · Laureano Gherardi · Laura Yahdjian · Peter B. Adler · Jonathan D. Bakker · Siddharth Bharath · Elizabeth T. Borer · William Stanley Harpole · Erika I. Hersch‐Green · Travis E. Huxman · Andrew S. MacDougall · Anita Christina Risch · Eric W. Seabloom · Sumanta Bagchi · Isabel C. Barrio · Lori Biederman · Yvonne M. Buckley · Miguel N. Bugalho · Maria C. Caldeira · Jane A. Catford · Qingqing Chen · Elsa E. Cleland · Scott L. Collins · Pedro Daleo · Chris R. Dickman · Ian Donohue · Mary Ellyn DuPre · Nico Eisenhauer · Anu Eskelinen · Nicole Hagenah · Yann Hautier · Robert W. Heckman · Ingibjörg S. Jónsdóttir · Johannes M. H. Knops · Ramesh Laungani · Jason P. Martina · Rebecca L. McCulley · John W. Morgan · Harry Olde Venterink · Pablo Luis Peri · Sally A. Power · Xavier Raynaud · Zhengwei Ren · Christiane Roscher · Melinda D. Smith · Marie Spohn · Carly J. Stevens · Michelle Tedder · Risto Virtanen · Glenda M. Wardle · George R. Wheeler

Reported year

2025

Reported language

en

Source type

article

First detected

2026-11-13T12:47:46.253267+00:00

Last metadata observation

2026-11-13T12:47:46.253267+00:00

Last HTTP verification

Not checked

Institutions reported by the source

Agricultural Research Service · United States Department of Agriculture · Grassland, Soil and Water Research Laboratory · University of California System · Consejo Nacional de Investigaciones Científicas y Técnicas · Universidad de Buenos Aires · Agricultural Plant Physiology and Ecology Research Institute · Utah State University · University of Washington · University of Minnesota · Helmholtz Centre for Environmental Research · German Centre for Integrative Biodiversity Research · Martin Luther University Halle-Wittenberg · Michigan Technological University · University of Guelph · Swiss Federal Institute for Forest, Snow and Landscape Research · Indian Institute of Science Bangalore · Agricultural University of Iceland · Iowa State University · Trinity College Dublin · University of Lisbon · Centro de Ecologia Aplicada Prof Baeta Neves · Laboratório Associado TERRA · Australian National University · King's College London · Senckenberg Museum für Naturkunde Görlitz · University of California San Diego · University of New Mexico · National University of Mar del Plata · Institute of Marine and Coastal Research · The University of Sydney · Leipzig University · University of Oulu · University of Pretoria · Utrecht University · The University of Texas at Austin · University of Iceland · Xi’an Jiaotong-Liverpool University · Marist University · Texas State University · University of Kentucky · La Trobe University · Vrije Universiteit Brussel · National University of Austral Patagonia · National Agricultural Technology Institute · Western Sydney University · Centre National de la Recherche Scientifique · Université Paris-Est Créteil · Université Paris Cité · Sorbonne Université · Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement · Institut de Recherche pour le Développement · Lanzhou University · Colorado State University · Swedish University of Agricultural Sciences · Lancaster University · University of KwaZulu-Natal · University of Nebraska–Lincoln

Reported affiliation countries

AR · AU · BE · CA · CH · CN · DE · FI · FR · GB · IE · IN · IS · NL · PT · SE · US · ZA

Documentary abstract — original language

Ecosystems are experiencing changing global patterns of mean annual precipitation (MAP) and enrichment with multiple nutrients that potentially colimit plant biomass production. In grasslands, mean aboveground plant biomass is closely related to MAP, but how this relationship changes after enrichment with multiple nutrients remains unclear. We hypothesized the global biomass-MAP relationship becomes steeper with an increasing number of added nutrients, with increases in steepness corresponding to the form of interaction among added nutrients and with increased mediation by changes in plant community diversity. We measured aboveground plant biomass production and species diversity in 71 grasslands on six continents representing the global span of grassland MAP, diversity, management, and soils. We fertilized all sites with nitrogen, phosphorus, and potassium with micronutrients in all combinations to identify which nutrients limited biomass at each site. As hypothesized, fertilizing with one, two, or three nutrients progressively steepened the global biomass-MAP relationship. The magnitude of the increase in steepness corresponded to whether sites were not limited by nitrogen or phosphorus, were limited by either one, or were colimited by both in additive, or synergistic forms. Unexpectedly, we found only weak evidence for mediation of biomass-MAP relationships by plant community diversity because relationships of species richness, evenness, and beta diversity to MAP and to biomass were weak or opposing. Site-level properties including baseline biomass production, soils, and management explained little variation in biomass-MAP relationships. These findings reveal multiple nutrient colimitation as a defining feature of the global grassland biomass-MAP relationship.

Identifiers

OPENALEX

https://openalex.org/W4409357555

DOI

10.1073/pnas.2410748122

PMID

https://pubmed.ncbi.nlm.nih.gov/40215280

PMCID

https://www.ncbi.nlm.nih.gov/pmc/articles/12012460

Documentary context

Documentary family

article

Source-reported types

article

Publishers

National Academy of Sciences

Entity mentions are not evidence of legal recognition. Jurisdiction studied is separate from author affiliation country.

Sources

OpenAlex · Record 1

• Document · https://doi.org/10.1073/pnas.2410748122

Documentary status

Relevance pending

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