Spatial and genetic crop diversity support ecosystem service delivery: A case of yield and biocontrol in Dutch organic cabbage production
A single focus on yield in agroecosystems comes at the expense of other ecosystem services, for instance, biocontrol of pests. Inthis study, we investigated the potential of intercropping to improve the delivery of ecosystem services by cropping systems.Intercropping was expected to deliver a higher yield through facilitation and complementarity while simultaneouslysuppressing pests via pest habitat dilution and habitat provision for natural enemies. Utilizing a network ofexperiments on crop diversification with different spatial arrangements and different levels of genetic crop diversity acro... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2020 |
Verlag/Hrsg.: |
Zenodo
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Sprache: | unknown |
Permalink: | https://search.fid-benelux.de/Record/base-29050042 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://doi.org/10.1016/j.fcr.2020.108015 |
A single focus on yield in agroecosystems comes at the expense of other ecosystem services, for instance, biocontrol of pests. Inthis study, we investigated the potential of intercropping to improve the delivery of ecosystem services by cropping systems.Intercropping was expected to deliver a higher yield through facilitation and complementarity while simultaneouslysuppressing pests via pest habitat dilution and habitat provision for natural enemies. Utilizing a network ofexperiments on crop diversification with different spatial arrangements and different levels of genetic crop diversity across theNetherlands in 2018, we analyzed the effect of seven intercropping designs on crop injury by pests, yield and quality in cabbage.Individual cabbage leaf injury by herbivorous pests was assessed using a newly developed diagrammatic scale.Provisioning services were measured as individual cabbage fresh weight and yield per unit area. We found a significantnegative relationship between crop diversity and herbivore feeding injury per cabbage: intercropping designs with morespecies, accessions and/or cultivars exhibited lower feeding injury. The presence of flower strips significantly reduced overallinjury in the adjacent cabbage strip, despite higher injury found in the rows closer to the flower strip. There was no clearrelationship between crop diversity and fresh marketable weight per cabbage, however five out of seven intercropping designswere able to maintain total yield per area when compared with the sole crop reference. Our results show that cropdiversification can simultaneously support the production ecosystem service by maintaining fresh marketable weight percabbage plant and productivity per unit area, as well as the regulating ecosystem service of pest control. These results provide abasis for redesigning large-scale arable fields into diversified productive systems, and thereby facilitate the transition towards moresustainable farming systems. A better understanding of crop functionality and management needs ...