RivestPaquetteMorenoEtAl2013

Référence

Rivest, D., Paquette, A., Moreno, G., Messier, C. (2013) A meta-analysis reveals mostly neutral influence of scattered trees on pasture yield along with some contrasted effects depending on functional groups and rainfall conditions. Agriculture, Ecosystems and Environment, 165:74-79. (Scopus )

Résumé

Scattered trees occurring throughout farmland matrix are prominent features of many human-dominated landscapes around the world, especially in livestock grazing systems. They are keystone structures that may play important roles in maintaining ecosystem functions, services, and farmland biodiversity. However, scattered trees in agricultural landscapes are declining worldwide due to intensive land use. They are often perceived by farmers as having negative impacts on agricultural production. Large-scale assessments in different biomes of agricultural yield in scattered tree ecosystems remain rare. Filling this knowledge gap may help improve decision-making regarding the value of scattered trees in agricultural landscapes. Using meta-analysis, we found that, across four tree functional groups (deciduous, Eucalyptus, N2-fixing, evergreen oak), mature scattered trees do not compromise pasture yield. The sign and magnitude of scattered tree effects on pasture yield did vary, however, among tree functional groups and according to precipitation levels. Our study suggests that, as drought pressure increases abiotic stress, tree facilitation by N2-fixing trees, and competition by Eucalyptus, will become the more common interactions between scattered trees and pasture. Management options exist to conserve and restore scattered trees in agricultural landscapes, but new policies are required to support their widespread adoption by farmers. © 2012 Elsevier B.V.

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@ARTICLE { RivestPaquetteMorenoEtAl2013,
    AUTHOR = { Rivest, D. and Paquette, A. and Moreno, G. and Messier, C. },
    TITLE = { A meta-analysis reveals mostly neutral influence of scattered trees on pasture yield along with some contrasted effects depending on functional groups and rainfall conditions },
    JOURNAL = { Agriculture, Ecosystems and Environment },
    YEAR = { 2013 },
    VOLUME = { 165 },
    PAGES = { 74-79 },
    __MARKEDENTRY = { [Luc:6] },
    ABSTRACT = { Scattered trees occurring throughout farmland matrix are prominent features of many human-dominated landscapes around the world, especially in livestock grazing systems. They are keystone structures that may play important roles in maintaining ecosystem functions, services, and farmland biodiversity. However, scattered trees in agricultural landscapes are declining worldwide due to intensive land use. They are often perceived by farmers as having negative impacts on agricultural production. Large-scale assessments in different biomes of agricultural yield in scattered tree ecosystems remain rare. Filling this knowledge gap may help improve decision-making regarding the value of scattered trees in agricultural landscapes. Using meta-analysis, we found that, across four tree functional groups (deciduous, Eucalyptus, N2-fixing, evergreen oak), mature scattered trees do not compromise pasture yield. The sign and magnitude of scattered tree effects on pasture yield did vary, however, among tree functional groups and according to precipitation levels. Our study suggests that, as drought pressure increases abiotic stress, tree facilitation by N2-fixing trees, and competition by Eucalyptus, will become the more common interactions between scattered trees and pasture. Management options exist to conserve and restore scattered trees in agricultural landscapes, but new policies are required to support their widespread adoption by farmers. © 2012 Elsevier B.V. },
    COMMENT = { Cited By (since 1996):1 Export Date: 14 April 2014 Source: Scopus CODEN: AEEND },
    ISSN = { 01678809 (ISSN) },
    KEYWORDS = { Abiotic stress, Agroforestry, Competition, Facilitation, Tree functional groups, Tree-pasture interaction, agri-environmental policy, agricultural land, agricultural production, agroforestry, arable land, biodiversity, biome, crop yield, deciduous tree, decision making, ecosystem function, environmental stress, facilitation, functional group, grazing, interspecific competition, livestock farming, management practice, meta-analysis, pasture, perception, rainfall, yield response, Eucalyptus },
    OWNER = { Luc },
    TIMESTAMP = { 2014.04.14 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84872545220&partnerID=40&md5=12619117aaf9eacdad4524afb793a897 },
}

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