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dc.contributor.authorFidel, Rivka
dc.contributor.authorLaird, David
dc.contributor.authorParkin, Timothy
dc.date.accessioned2020-01-24T20:27:45Z
dc.date.available2020-01-24T20:27:45Z
dc.date.issued2019-01-11
dc.identifier.citationFidel, R.B.; Laird, D.A.; Parkin, T.B. Effect of Biochar on Soil Greenhouse Gas Emissions at the Laboratory and Field Scales. Soil Syst. 2019, 3, 8.en_US
dc.identifier.issn2571-8789
dc.identifier.doi10.3390/soilsystems3010008
dc.identifier.urihttp://hdl.handle.net/10150/636712
dc.description.abstractBiochar application to soil has been proposed as a means for reducing soil greenhouse gas emissions and mitigating climate change. The effects, however, of interactions between biochar, moisture and temperature on soil CO2 and N2O emissions, remain poorly understood. Furthermore, the applicability of lab-scale observations to field conditions in diverse agroecosystems remains uncertain. Here we investigate the impact of a mixed wood gasification biochar on CO2 and N2O emissions from loess-derived soils using: (1) controlled laboratory incubations at three moisture (27, 31 and 35%) and three temperature (10, 20 and 30 degrees C) levels and (2) a field study with four cropping systems (continuous corn, switchgrass, low diversity grass mix and high diversity grass-forb mix). Biochar reduced N2O emissions under specific temperatures and moistures in the laboratory and in the continuous corn cropping system in the field. However, the effect of biochar on N2O emissions was only significant in the field and no effect on cumulative CO2 emissions was observed. Cropping system also had a significant effect in the field study, with soils in grass and grass-forb cropping systems emitting more CO2 and less N2O than corn cropping systems. Observed biochar effects were consistent with previous studies showing that biochar amendments can reduce soil N2O emissions under specific but not all, conditions. The disparity in N2O emission responses at the lab and field scales suggests that laboratory incubation experiments may not reliably predict the impact of biochar at the field scale.en_US
dc.description.sponsorshipGlobal Climate and Energy Project, Stanford [640 60413992-112883-A]; USDA National Institute of Food and Agriculture under Agriculture and Food Research Initiative [2013-67011-21156]; USDA National Institute of Food and Agriculture under CenUSA [2011-68005-30411]en_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.rightsCopyright © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectbiocharen_US
dc.subjectgreenhouse gas emissionsen_US
dc.subjectincubationen_US
dc.subjectsoilen_US
dc.subjectcornen_US
dc.subjectswitchgrassen_US
dc.subjectCO2en_US
dc.subjectN2Oen_US
dc.subjectcropping systemen_US
dc.subjectdiversityen_US
dc.titleEffect of Biochar on Soil Greenhouse Gas Emissions at the Laboratory and Field Scalesen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Soil Water & Environm Scien_US
dc.identifier.journalSOIL SYSTEMSen_US
dc.description.noteOpen access journalen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume3
dc.source.issue1
dc.source.beginpage8
refterms.dateFOA2020-01-24T20:27:46Z


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Copyright © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as Copyright © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).