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Global trends in grassland carrying capacity and relative stocking density of livestock.
Piipponen, Johannes; Jalava, Mika; de Leeuw, Jan; Rizayeva, Afag; Godde, Cecile; Cramer, Gabriel; Herrero, Mario; Kummu, Matti.
Afiliação
  • Piipponen J; Water and Development Research Group, Aalto University, Espoo, Finland.
  • Jalava M; Water and Development Research Group, Aalto University, Espoo, Finland.
  • de Leeuw J; Department of Bioecology, Baku State University, Baku, Azerbaijan.
  • Rizayeva A; Department of Bioecology, Baku State University, Baku, Azerbaijan.
  • Godde C; SILVIS Lab, Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, Wisconsin, USA.
  • Cramer G; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, St Lucia, QLD, Australia.
  • Herrero M; Water and Development Research Group, Aalto University, Espoo, Finland.
  • Kummu M; Department of Global Development, College of Agriculture and Life Sciences and Cornell Atkinson Center for Sustainability, Cornell University, Ithaca, New York, USA.
Glob Chang Biol ; 28(12): 3902-3919, 2022 06.
Article em En | MEDLINE | ID: mdl-35320616
Although the role of livestock in future food systems is debated, animal proteins are unlikely to completely disappear from our diet. Grasslands are a key source of primary productivity for livestock, and feed-food competition is often limited on such land. Previous research on the potential for sustainable grazing has focused on restricted geographical areas or does not consider inter-annual changes in grazing opportunities. Here, we developed a robust method to estimate trends and interannual variability (IV) in global livestock carrying capacity (number of grazing animals a piece of land can support) over 2001-2015, as well as relative stocking density (the reported livestock distribution relative to the estimated carrying capacity [CC]) in 2010. We first estimated the aboveground biomass that is available for grazers on global grasslands based on the MODIS Net Primary Production product. This was then used to calculate livestock carrying capacities using slopes, forest cover, and animal forage requirements as restrictions. We found that globally, CC decreased on 27% of total grasslands area, mostly in Europe and southeastern Brazil, while it increased on 15% of grasslands, particularly in Sudano-Sahel and some parts of South America. In 2010, livestock forage requirements exceeded forage availability in northwestern Europe, and southern and eastern Asia. Although our findings imply some opportunities to increase grazing pressures in cold regions, Central Africa, and Australia, the high IV or low biomass supply might prevent considerable increases in stocking densities. The approach and derived open access data sets can feed into global food system modelling, support conservation efforts to reduce land degradation associated with overgrazing, and help identify undergrazed areas for targeted sustainable intensification efforts or rewilding purposes.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Conservação dos Recursos Naturais / Gado Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Glob Chang Biol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Finlândia País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Conservação dos Recursos Naturais / Gado Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Glob Chang Biol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Finlândia País de publicação: Reino Unido