dc.contributor.author | Xu, Yongbo | |
dc.contributor.author | Xu, Zhihong | |
dc.date.accessioned | 2018-06-20T03:34:35Z | |
dc.date.available | 2018-06-20T03:34:35Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 0944-1344 | |
dc.identifier.doi | 10.1007/s11356-015-4262-8 | |
dc.identifier.uri | http://hdl.handle.net/10072/141247 | |
dc.description.abstract | Land 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.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Springer | |
dc.relation.ispartofpagefrom | 10850 | |
dc.relation.ispartofpageto | 10860 | |
dc.relation.ispartofissue | 14 | |
dc.relation.ispartofjournal | Environmental Science and Pollution Research | |
dc.relation.ispartofvolume | 22 | |
dc.subject.fieldofresearch | Chemical sciences | |
dc.subject.fieldofresearch | Environmental sciences | |
dc.subject.fieldofresearch | Biological sciences | |
dc.subject.fieldofresearch | Other biological sciences not elsewhere classified | |
dc.subject.fieldofresearchcode | 34 | |
dc.subject.fieldofresearchcode | 41 | |
dc.subject.fieldofresearchcode | 31 | |
dc.subject.fieldofresearchcode | 319999 | |
dc.title | Effects of land use change on soil gross nitrogen transformation rates in subtropical acid soils of Southwest China | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Xu, Zhihong | |