TY - JOUR

T1 - L'expérience de léna démontre les avantages de la diversité végétale pour les prairies

AU - Fischer, M.

AU - Rottstock, T.

AU - Marquard, E.

AU - Middelhoff, C.

AU - Roscher, C.

AU - Temperton, Vicky M.

AU - Oelmann, Y.

AU - Weigelt, A.

PY - 2008

Y1 - 2008

N2 - A number of studies suggest that there could be a positive relationship between the productivity of a plant community and its fioristic diversity. Besides, for grasslands, productivity is not the only desirable advantage. The Jena trials, constituting a large-scale and long-duration experiment, were set up to tackle these questions. In the plots of the Jena trials, the number of species varies from 1 to 60. Various sub-trials deal with the effects of the composition and the diversity of a pasture sward on its productivity, the diversity of certain organisms, and several ecological processes. The results from the first 6 years show clearly that there exist positive relationships between the number of species, the presence of legumes and/or the functional diversity on the one hand, and on the other the productivity, the resistance to encroachment by plants and to pathogenic fungi, and the cycles of nutrients. The positive effects of the fioristic diversity on the processes at the scale of the eco-system are of importance to the agricultural production and to the general environmental impact.

AB - A number of studies suggest that there could be a positive relationship between the productivity of a plant community and its fioristic diversity. Besides, for grasslands, productivity is not the only desirable advantage. The Jena trials, constituting a large-scale and long-duration experiment, were set up to tackle these questions. In the plots of the Jena trials, the number of species varies from 1 to 60. Various sub-trials deal with the effects of the composition and the diversity of a pasture sward on its productivity, the diversity of certain organisms, and several ecological processes. The results from the first 6 years show clearly that there exist positive relationships between the number of species, the presence of legumes and/or the functional diversity on the one hand, and on the other the productivity, the resistance to encroachment by plants and to pathogenic fungi, and the cycles of nutrients. The positive effects of the fioristic diversity on the processes at the scale of the eco-system are of importance to the agricultural production and to the general environmental impact.

KW - Biodiversity

KW - Dicotyledon

KW - Ecology

KW - Forage mixture

KW - Forage production

KW - Functional composition

KW - Grass

KW - Grassland

KW - Legume

KW - Long-duration experiments

KW - Resistance to diseases

KW - Vegetation

KW - Weed

KW - Biology

KW - Ecosystems Research

UR - http://www.scopus.com/inward/record.url?scp=77958020231&partnerID=8YFLogxK

M3 - Zeitschriftenaufsätze

AN - SCOPUS:77958020231

VL - 2008

SP - 275

EP - 286

JO - Fourrages

JF - Fourrages

SN - 0429-2766

IS - 195

ER -