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.
|Title of host publication||Grassland at the heart of circular and sustainable food systems |
|Subtitle of host publication||Proceedings 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|
|Number of pages||3|
|Publication status||Published - 2022|