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Carbon dioxide and gaseous nitrogen emissions from biochar‐amended soils under wastewater irrigated urban vegetable production of Burkina Faso and Ghana

dc.contributor.advisor
dc.date.accessioned2020-08-17T09:10:47Z
dc.date.available2020-08-17T09:10:47Z
dc.date.issued2020-06-30
dc.identifierdoi:10.17170/kobra-202008121561
dc.identifier.urihttp://hdl.handle.net/123456789/11695
dc.description.sponsorshipGefördert im Rahmen des Projekts DEAL
dc.language.isoeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectammonia volatilizationeng
dc.subjectbiochareng
dc.subjectcarbon dioxide emissionseng
dc.subjectinorganic N fertilizationeng
dc.subjecturban agricultureeng
dc.subjectwaste irrigationeng
dc.subject.ddc630
dc.titleCarbon dioxide and gaseous nitrogen emissions from biochar‐amended soils under wastewater irrigated urban vegetable production of Burkina Faso and Ghanaeng
dc.typeAufsatz
dcterms.abstractTo quantify carbon (C) and nitrogen (N) losses in soils of West African urban and peri‐urban agriculture (UPA) we measured fluxes of CO₂‐C, N₂O‐N, and NH₃‐N from irrigated fields in Ouagadougou, Burkina Faso, and Tamale, Ghana, under different fertilization and (waste‐)water regimes. Compared with the unamended control, application of fertilizers increased average cumulative CO₂‐C emissions during eight cropping cycles in Ouagadougou by 103% and during seven cropping cycles in Tamale by 42%. Calculated total emissions measured across all cropping cycles reached 14 t C ha⁻¹ in Ouagadougou, accounting for 73% of the C applied as organic fertilizer over a period of two years at this site, and 9 t C ha⁻¹ in Tamale. Compared with unamended control plots, fertilizer application increased N₂O‐N emissions in Ouagadougou during different cropping cycles, ranging from 37 to 360%, while average NH₃‐N losses increased by 670%. Fertilizer application had no significant effects on N₂O‐N losses in Tamale. While wastewater irrigation did not significantly enhance CO₂‐C emissions in Ouagadougou, average CO₂‐C emissions in Tamale were 71% (1.6 t C ha⁻¹) higher on wastewater plots compared with those of the control (0.9 t C ha⁻¹). However, no significant effects of wastewater on N₂O‐N and NH₃‐N emissions were observed at either location. Although biochar did not affect N₂O‐N and NH₃‐N losses, the addition of biochar could contribute to reducing CO₂‐C emissions from urban garden soils. When related to crop production, CO₂‐C emissions were higher on control than on fertilized plots, but this was not the case for absolute CO₂‐C emissions.eng
dcterms.accessRightsopen access
dcterms.creatorManka'abusi, Delphine
dcterms.creatorLompo, Désiré Jean-Pascal
dcterms.creatorSteiner, Christoph
dcterms.creatorIngold, Mariko
dcterms.creatorAkoto-Danso, Edmund Kyei
dcterms.creatorWerner, Steffen
dcterms.creatorHäring, Volker
dcterms.creatorNyarko, George
dcterms.creatorMarschner, Bernd
dcterms.creatorBuerkert, Andreas
dc.relation.doidoi:10.1002/jpln.201900183
dc.subject.swdAbwasserger
dc.subject.swdBewässerungswirtschaftger
dc.subject.swdBewässerungger
dc.subject.swdGemüsebauger
dc.subject.swdKohlendioxidger
dc.subject.swdAbgasger
dc.subject.swdBurkina Fasoger
dc.subject.swdGhanager
dc.type.versionpublishedVersion
dcterms.source.identifierEISSN 1522-2624
dcterms.source.issueIssue 4
dcterms.source.journalJournal of Plant Nutrition and Soil Science (JPNSS)eng
dcterms.source.pageinfo500-516
dcterms.source.volumeVolume 183
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