Site effects on species productivity and dynamics: Results from COST 852 in Wales

R. P. Collins, M. Fothergill, Elaine M. Rees, L. Kirwan, C. Brophy, J. Connolly, A. Hopkins (Golygydd), T. Gustafsson (Golygydd), J. Bertilsson (Golygydd)

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddTrafodion Cynhadledd (Nid-Cyfnodolyn fathau)

Crynodeb

An experiment quantifying diversity-function relationships in agro-ecosystems (COST 852) was established at a range of sites in Europe, including two sites in Wales. These were located in Aberystwyth (AB: lowland), and in Bronydd Mawr (BM: upland). The species and varieties within species were identical in the two sites, as were all major management factors. The species used were two grasses (Lolium perenne L. (perennial ryegrass) and Dactylis glomerata L. (cocksfoot)) and two legumes (Trifolium pratense L. (red clover) and T. repens L. (white clover)). In addition to the core COST 852 experiment, both sites also included an extra treatment whereby the genetic heterogeneity of the legumes was greatly increased by constructing mechanical mixtures comprising seed of many cultivars/populations. The results highlighted substantial differences in plant responses between the upland and lowland sites. The two contrasting environments produced two sets of quite different communities at the end of the experiment, and these were arrived at through very different patterns of species dynamics. However, in both sites, mixtures significantly outperformed monocultures in terms of yield of sown species over three years, exemplifying the agronomic benefits of species diversity. There was no consistent effect of legume genetic heterogeneity on community structure or function.
Iaith wreiddiolSaesneg
TeitlBiodiversity and animal feed: future challenges for grassland production
GolygyddionA. Hopkins, T. Gustafsson, J. Bertilsson, G. Dalin, N. Nilsdotter-Linde, E. Spörndly
CyhoeddwrSwedish University of Agricultural Sciences
Tudalennau230-232
Nifer y tudalennau3
Cyfrol13
ISBN (Argraffiad)9789185911479
StatwsCyhoeddwyd - 2008
DigwyddiadBiodiversity and animal feed: future challenges for grassland production. Proceedings of the 22nd General Meeting of the European Grassland Federation - Swedish University of Agricultural Sciences, Uppsala, Sweden
Hyd: 09 Meh 200812 Meh 2008

Cyfres gyhoeddiadau

EnwGrassland Science in Europe

Cynhadledd

CynhadleddBiodiversity and animal feed: future challenges for grassland production. Proceedings of the 22nd General Meeting of the European Grassland Federation
Gwlad/TiriogaethSweden
DinasUppsala
Cyfnod09 Meh 200812 Meh 2008

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