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Urban agriculture in Bragança, Northeast Portugal: assessing the nutrient dynamic in the soil and plants, and their contamination with trace metals

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dc.contributor.authorArrobas, Margarida
dc.contributor.authorLopes, Henda
dc.contributor.authorRodrigues, M.A.
dc.date.accessioned2017-01-11T16:25:59Z
dc.date.available2017-01-11T16:25:59Z
dc.date.issued2017
dc.description.abstractUrban agriculture is increasing in both developing and developed countries. In spite of its multiple benefits, urban agriculture can cause unwanted aspects such as environmental damage and health risks to consumers. This work was carried out in a social garden project developed by the Polytechnic Institute of Bragança, Portugal. It checked if cropping practices were environmentally sound and monitored the quality of the edible vegetables, in particular their concentration of trace metals. Bragança is a small city of 25,000 inhabitants located in Northeastern Portugal. In this study the plant nutritional status and the inorganic nitrogen (N) levels in the soil as indirect indicators of the risk of N loss to the environment; and the concentrations of trace metals in the soil and plant tissues as a measure of the exposure of gardeners to trace metals were studied. The results showed the existence of low leaf N concentrations, often close to the deficiency range of the respective species, and also low inorganic N levels in the soil during the winter, suggesting reduced risks of nitrate leaching and denitrification. Trace metal concentrations were low in the soils when compared with the limits set by national and international legislation. As a result, the content of trace metals in edible plant parts was also low. The positive results found in this urban agriculture project might be due to its organic farming basis and to the absence of major sources of pollution in the vicinity of the gardens. This information is useful to local gardeners, since they can trust the products they take home, but also to other urban agriculture projects in even more populated cities.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationArrobas, Margarida; Lopes, Henda; Rodrigues, M.A. (2017). Urban agriculture in Bragança, Northeast Portugal: assessing the nutrient dynamic in the soil and plants, and their contamination with trace metals. Biological Agriculture & Horticulture. ISSN 0144-8765. 33:1, p. 1-13pt_PT
dc.identifier.doi10.1080/01448765.2016.1172345pt_PT
dc.identifier.issn0144-8765
dc.identifier.urihttp://hdl.handle.net/10198/13732
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectNitratespt_PT
dc.subjectOrganic farmingpt_PT
dc.subjectPlant nutritional statuspt_PT
dc.subjectSoil inorganic nitrogenpt_PT
dc.subjectTrace metalspt_PT
dc.titleUrban agriculture in Bragança, Northeast Portugal: assessing the nutrient dynamic in the soil and plants, and their contamination with trace metalspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage13pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleBiological Agriculture and Horticulturept_PT
person.familyNameArrobas
person.familyNameRodrigues
person.givenNameMargarida
person.givenNameManuel Ângelo
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35270106800
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscovery43621353-fa11-4559-9b24-27eba5ad3de0

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