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dc.contributor.authorXu, Yongbo
dc.contributor.authorXu, Zhihong
dc.date.accessioned2018-06-20T03:34:35Z
dc.date.available2018-06-20T03:34:35Z
dc.date.issued2015
dc.identifier.issn0944-1344
dc.identifier.doi10.1007/s11356-015-4262-8
dc.identifier.urihttp://hdl.handle.net/10072/141247
dc.description.abstractLand use change affects soil gross nitrogen (N) transformations, but such information is particularly lacking under subtropical conditions. A study was carried out to investigate the potential gross N transformation rates in forest and agricultural (converted from the forest) soils in subtropical China. The simultaneously occurring gross N transformations in soil were quantified by a 15N tracing study under aerobic conditions. The results showed that change of land use types substantially altered most gross N transformation rates. The gross ammonification and nitrification rates were significantly higher in the agricultural soils than in the forest soils, while the reverse was true for the gross N immobilization rates. The higher total carbon (C) concentrations and C / N ratio in the forest soils relative to the agricultural soils were related to the greater gross N immobilization rates in the forest soils. The lower gross ammonification combined with negligible gross nitrification rates, but much higher gross N immobilization rates in the forest soils than in the agricultural soils suggest that this may be a mechanism to effectively conserve available mineral N in the forest soils through increasing microbial biomass N, the relatively labile organic N. The greater gross nitrification rates and lower gross N immobilization rates in the agricultural soils suggest that conversion of forests to agricultural soils may exert more negative effects on the environment by N loss through NO3 − leaching or denitrification (when conditions for denitrification exist).
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofpagefrom10850
dc.relation.ispartofpageto10860
dc.relation.ispartofissue14
dc.relation.ispartofjournalEnvironmental Science and Pollution Research
dc.relation.ispartofvolume22
dc.subject.fieldofresearchChemical sciences
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchOther biological sciences not elsewhere classified
dc.subject.fieldofresearchcode34
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode319999
dc.titleEffects of land use change on soil gross nitrogen transformation rates in subtropical acid soils of Southwest China
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorXu, Zhihong


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