Alvarez Faver, Casanoves Fernando, Suarez Juan Carlos, Rusch Graciela M., Ngo Bieng Marie-Ange. 2023. An assessment of silvopastoral systems condition and their capacity to generate ecosystem services in the Colombian Amazon. Ecosystems and People, 19 (1):2213784, 20 p.
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Résumé : Livestock production in the Colombian Amazonia is typically dual-purpose (meat and milk) based on silvopastoral systems. We aimed to assess how the ecological condition of these systems correspond to the ecosystem services they generate based on an assessment of farmers' knowledge of the tree species. We evaluated 159 paddocks. We recorded 143 tree species from 37 families, with 22 species being most common (relative occurrence frequency = 57%). Based on tree species composition, we characterized four states of silvopastoral condition (hereon 'paddock condition types') using clustering techniques: (i) High structural complexity and highest tree species richness (HSCR); (ii) High species diversity and tall trees (HDTT); (iii) High species diversity and medium-sized trees (HDMT); (iv) Structurally simple with lowest species richness (SSLR). Tree species richness was significantly higher in HSCR (11.70 ± 1.47 per paddock), than in SSLR (2.86 ± 0.80). HDTT and HDMT had similar richness, with intermediate values (5.55 ± 0.82 and 6.38 ± 0.51, respectively). Farmers appreciate a number of ecosystem services provided by the silvopastoral system, but a limited number of tree species are valued. This indicates the need for additional biodiversity conservation measures in these landscapes, including measures to improve knowledge about the value of tree species with few occurrences or low densities.
Mots-clés Agrovoc : système sylvopastoral, services écosystémiques, conservation de la diversité biologique
Mots-clés géographiques Agrovoc : Amazonie, Colombie
Mots-clés libres : Tree species richness, Silvopastoral system condition, Biodiversity conservation, Importance Value Index, Index of Cultural Importance, Tree selective preservation
Classification Agris : F08 - Systèmes et modes de culture
P01 - Conservation de la nature et ressources foncières
Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques
Agences de financement hors UE : Colombian Ministry of Science, Universidade Federal Rural da Amazônia, Norwegian Institute for Nature Research
Projets sur financement : (COL) Effect of tree cover on pastures in dual-purpose livestock systems in the Colombian Amazon
Auteurs et affiliations
- Alvarez Faver, Universidad de la Amazonia (COL)
- Casanoves Fernando, CATIE (CRI)
- Suarez Juan Carlos, Universidad de la Amazonia (COL)
- Rusch Graciela M., NINA (NOR) - auteur correspondant
- Ngo Bieng Marie-Ange, CIRAD-ES-UPR Forêts et sociétés (GTM)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/605246/)
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