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Widening global variability in grassland biomass since the 1980s
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences. Department of Integrative Biology, University of Guelph, ON, Guelph, Canada.
Department of Integrative Biology, University of Guelph, ON, Guelph, Canada.
Institute of Ecology, College of Urban and Environmental Science, Peking University, Beijing, China.
Department of Integrative Biology, University of Guelph, ON, Guelph, Canada.
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2024 (English)In: Nature Ecology & Evolution, E-ISSN 2397-334X, Vol. 8, no 10, p. 1877-1888Article in journal (Refereed) Published
Abstract [en]

Global change is associated with variable shifts in the annual production of aboveground plant biomass, suggesting localized sensitivities with unclear causal origins. Combining remotely sensed normalized difference vegetation index data since the 1980s with contemporary field data from 84 grasslands on 6 continents, we show a widening divergence in site-level biomass ranging from +51% to −34% globally. Biomass generally increased in warmer, wetter and species-rich sites with longer growing seasons and declined in species-poor arid areas. Phenological changes were widespread, revealing substantive transitions in grassland seasonal cycling. Grazing, nitrogen deposition and plant invasion were prevalent in some regions but did not predict overall trends. Grasslands are undergoing sizable changes in production, with implications for food security, biodiversity and carbon storage especially in arid regions where declines are accelerating.

Place, publisher, year, edition, pages
Springer Nature, 2024. Vol. 8, no 10, p. 1877-1888
National Category
Climate Science Physical Geography
Identifiers
URN: urn:nbn:se:umu:diva-228490DOI: 10.1038/s41559-024-02500-xISI: 001283874300001PubMedID: 39103674Scopus ID: 2-s2.0-85200543589OAI: oai:DiVA.org:umu-228490DiVA, id: diva2:1889307
Note

Errata: MacDougall, A.S., Esch, E., Chen, Q. et al. Author Correction: Widening global variability in grassland biomass since the 1980s. Nat Ecol Evol. 2024;8:2003. DOI: 10.1038/s41559-024-02538-x

Available from: 2024-08-15 Created: 2024-08-15 Last updated: 2025-02-01Bibliographically approved

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Siewert, MatthiasLarson, KeithOlofsson, Johan

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