Experimental increases in diversity and evenness improve productivity and reduce weed invasion in grassland swards over three years across 12 European sites

摘要：

Increased emphasis on the multifunctionality of European agriculture has called for a re‐investigation of the use of mixtures in productive grasslands.Ecological research suggests that increased species diversity in species‐poor intensive grassland systems may potentially provide multiple benefits.We present results from the COST 852 multisite Agrodiversity Grassland Experiment,where we test a number of basic questions in agronomic diversity‐function research.It was hypothesised that (1) mixtures can outperform monocultures both in terms of productivity and weed suppression (2) the diversity benefits will be persistent through time (3) the diversity benefits will be consistent across a wide geographical scale.

关键词： diversity‐function evenness persistence of diversity effects

作者: L Kirwan C Brophy RP Collins J Connolly JA Finn A Helgadottir A Lüscher C Porqeuddu MT Sebastià

作者单位: Teagasc Environment Research Centre,Johnstown Castle,Co.Wexford,Ireland;Eugene Lawler Graduate Schoo UCD School of Mathematical Sciences,EcologicaLand Environmental Modelling Group,University College D IGER,Plas Gogerddan,Aberystwyth,SY23 3EB,Wales,UK. Teagasc Environment Research Centre,Johnstown Castle,Co.Wexford,Ireland. Agricultural University oficeland,Keldnaholti,112Reykjavík,Iceland. Swiss Federal Research Station for AgroEcology and Agriculture,8046 Zurich,Switzerland. CNR-ISPAAM,Via De Nicola,07100 Sassari,Italy. Forest Technology Centre of Catalonia-University of Lleida,25280 Solsona,Spain.

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）