Publications des scientifiques de l'IRD

Barrios E., Valencia V., Jonsson M., Brauman Alain, Hairiah K., Mortimer P.E., Okubo S. (2018). Contribution of trees to the conservation of biodiversity and ecosystem services in agricultural landscapes. International Journal of Biodiversity Science, Ecosystems Services and Management, 14 (1), p. 1-16. ISSN 2151-3732.

Titre du document
Contribution of trees to the conservation of biodiversity and ecosystem services in agricultural landscapes
Année de publication
2018
Type de document
Article
Auteurs
Barrios E., Valencia V., Jonsson M., Brauman Alain, Hairiah K., Mortimer P.E., Okubo S.
Source
International Journal of Biodiversity Science, Ecosystems Services and Management, 2018, 14 (1), p. 1-16 ISSN 2151-3732
The production of sufficient food for an increasing global population while conserving natural capital is a major challenge to humanity. Tree-mediated ecosystem services are recognized as key features of more sustainable agroecosystems but the strategic management of tree attributes for ecosystem service provision is poorly understood. Six agroforestry and tree cover transition studies, spanning tropical/subtropical forest zones in three continents, were synthesized to assess the contribution of tree cover to the conservation of biodiversity and ecosystem services. Loss of native earthworm populations resulted in 76% lower soil macroporosity when shade trees were absent in coffee agriculture. Increased tree cover contributed to 53% increase in tea crop yield, maintained 93% of crop pollinators found in the natural forest and, in combination with nearby forest fragments, contributed to as much as 86% lower incidence for coffee berry borer. In certain contexts, shade trees contributed to negative effects resulting from increases in abundance of white stem borer and lacebugs and resulted in 60% reduction of endangered tree species compared to forest. Managing trees for ecosystem services requires understanding which tree species to include and how to manage them for different socio-ecological contexts. This knowledge needs to be shared and translated into viable options with farming communities.
Plan de classement
Erosion et conservation des sols [068EROSOL] ; Ecosystèmes [082ECOSYS]
Descripteurs
AGROFORESTERIE ; SOL CULTIVE ; FERTILITE DU SOL ; ARBRE ; COUVERT VEGETAL ; POLLINISATION ; PROTECTION DE L'ECOSYSTEME ; BIODIVERSITE ; SERVICE ECOSYSTEMIQUE
Description Géographique
INDONESIE ; THAILANDE ; CHINE ; MEXIQUE ; KENYA ; OUGANDA
Localisation
Fonds IRD [F B010071128]
Identifiant IRD
fdi:010071128
Contact