Does liming grasslands increase biomass production without causing negative impacts on net greenhouse gas emissions?

Mohamed Abdalla, Laura Zavattaro, Eszter Lellei-Kovacs , Mikk Espenberg, Ulo Mander, Kate Smith, Rachel Thorman, Claudia Dǎmǎtîrcǎ, Rene Schils, Hein Ten Berge, Paul Newell-Price, Pete Smith

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution

Abstract

This global review of grassland liming research assesses the impacts of liming on soil pH, biomass production and net greenhouse gas (GHG) exchanges (N2O, CH4 and CO2). All studies showed that liming either reduced or had no effects on the emissions of N2O and CH4. Though the liming of grasslands can increase net CO2 emissions, the impact on net GHG emissions is small due to the higher 100-year global warming potential (GWP) of N2O and CH4 than CO2. Moderate liming of grassland significantly increases soil pH, grass productivity and species richness, and reduced fertilizer requirement, which justifies its wider adoption.
Original languageEnglish
Title of host publicationGrassland at the heart of circular and sustainable food systems
Subtitle of host publicationProceedings of the 29th General Meeting of the European Grassland Federation Caen, France 26-30 June 2022
Editors L. Delaby , R. Baumont, V. Brocard, S. Lemauviel-Lavenant, S. Plantureux , F. Vertès, J.L. Peyraud
PublisherEuropean Grassland Federation
Pages518-520
Number of pages3
Volume27
ISBN (Electronic)978-2-7380-1446-7
ISBN (Print)978-2-7380-1445-0
Publication statusPublished - 27 Jun 2022
Event29th EGF general meeting: Grassland at the heart of circular and sustainable food systems - Caen, France
Duration: 26 Jun 202230 Jun 2022
https://egf2022.symposium.inrae.fr/

Publication series

NameGrassland Science in Europe
PublisherEuropean Grassland Federation
Volume27

Conference

Conference29th EGF general meeting
Country/TerritoryFrance
CityCaen
Period26/06/2230/06/22
Internet address

Bibliographical note

This work contributes to the SUPER-G project (funded under EU Horizon 2020 programme), Estonian Research Council (PRG352) and the European Regional Development Fund.

Keywords

  • grassland
  • lime
  • N2O
  • CO2
  • CH4
  • SOC

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