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dc.contributor.author
Engbersen, Nadine
dc.contributor.author
Stefan, Laura
dc.contributor.author
Brooker, Rob W.
dc.contributor.author
Schöb, Christian
dc.date.accessioned
2022-01-13T17:28:02Z
dc.date.available
2021-12-07T09:26:58Z
dc.date.available
2021-12-09T10:03:25Z
dc.date.available
2022-01-13T17:28:02Z
dc.date.issued
2022-01
dc.identifier.issn
1051-0761
dc.identifier.issn
1939-5582
dc.identifier.other
10.1002/eap.2479
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/519138
dc.identifier.doi
10.3929/ethz-b-000519138
dc.description.abstract
Increasing biodiversity generally enhances productivity through selection and complementarity effects not only in natural, but also in agricultural, systems. However, the quest to explain why diverse cropping systems are more productive than monocultures remains a central goal in agricultural science. In a mesocosm experiment, we constructed monocultures, two- and four-species mixtures from eight crop species with or without fertilizer and both in temperate Switzerland and dry, Mediterranean Spain. We measured physical factors and plant traits and related these in structural equation models to selection and complementarity effects to explain seed yield differences between monocultures and mixtures. Increased crop diversity increased seed yield in Switzerland. This positive biodiversity effect was driven to almost the same extent by selection and complementarity effects, which increased with plant height and specific leaf area (SLA), respectively. Also, ecological processes driving seed yield increases from monocultures to mixtures differed from those responsible for seed yield increases through the diversification of mixtures from two to four species. Whereas selection effects were mainly driven by one species, complementarity effects were linked to larger leaf area per unit leaf weight. Seed yield increases due to mixture diversification were driven only by complementarity effects and were not mediated through the measured traits, suggesting that ecological processes beyond those measured in this study were responsible for positive diversity effects on yield beyond two-species mixtures. By understanding the drivers of positive biodiversity-productivity relationships, we can improve our ability to predict species combinations that enhance ecosystem functioning and can promote sustainable agricultural production.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
agroecology
en_US
dc.subject
biodiversity effects
en_US
dc.subject
biodiversity–productivity
en_US
dc.subject
complementarity effects
en_US
dc.subject
crop mixtures
en_US
dc.subject
intercropping
en_US
dc.subject
plant traits
en_US
dc.subject
selection effects
en_US
dc.title
Using plant traits to understand the contribution of biodiversity effects to annual crop community productivity
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2021-10-17
ethz.journal.title
Ecological Applications
ethz.journal.volume
32
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Ecol. Appl.
ethz.pages.start
e02479
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Ecology and evolution in practice: A plant–plant interaction-based approach to the evolution of biodiversity effects on productivity
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
New York, NY
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::09618 - Schöb, Christian (ehemalig) / Schöb, Christian (former)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::09618 - Schöb, Christian (ehemalig) / Schöb, Christian (former)
ethz.grant.agreementno
170645
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
SNF-Förderungsprofessuren Stufe 2
ethz.date.deposited
2021-12-07T09:28:02Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-01-13T17:28:18Z
ethz.rosetta.lastUpdated
2024-02-02T15:59:37Z
ethz.rosetta.versionExported
true
ethz.COinS
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