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dc.contributor.authorZhang, Yaling
dc.contributor.authorZhang, Manyun
dc.contributor.authorTang, Li
dc.contributor.authorChe, Rongxiao
dc.contributor.authorChen, Hong
dc.contributor.authorBlumfield, Tim
dc.contributor.authorBoyd, Sue
dc.contributor.authorNouansyvong, Mone
dc.contributor.authorXu, Zhihong
dc.date.accessioned2019-07-14T12:30:42Z
dc.date.available2019-07-14T12:30:42Z
dc.date.issued2018
dc.identifier.issn0095-3628
dc.identifier.doi10.1007/s00248-018-1162-8
dc.identifier.urihttp://hdl.handle.net/10072/381833
dc.description.abstractHarvest residues contain large stores of carbon (C) and nitrogen (N) in forest plantations. Decomposing residues can release labile C and N into soil and thus provide substrates for soil bacterial communities. Previous studies showed that residue retention could increase soil C and N pools and activate bacterial communities in the short term (≤ 10 years). The current study examined the effects of a long-term (19-year) harvest residue retention on soil total and water and hot water extractable C and N pools, as well as bacterial communities via Illumina MiSeq sequencing. The experiment was established in a randomised complete block design with four replications, southeast Queensland of Australia, including no (R0), single (R1, 51 to 74 t ha−1 dry matter) and double quantities (R2, 140 t ha−1 dry matter) of residues retained. Generally, no significant differences existed in total C and N, as well as C and N pools extracted by water and hot water among the three treatments, probably due to negligible amounts of labile C and N released from harvest residues. Soil δ15N significantly decreased from R0 to R1 to R2, probably due to reduced N leaching with residue retention (P < 0.001). Residue retention increased the relative abundances of Actinobacteria (P = 0.016) and Spartobacteria (P < 0.001), whereas decreased Betaproteobacteria (P = 0.050). This favour for the oligotrophic groups probably caused the decrease in the bacterial diversity as revealed by Shannon index (P = 0.025). Hence, our study suggests that residue retention is not an appropriate management practice in the long term.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofpagefrom771
dc.relation.ispartofpageto781
dc.relation.ispartofissue3
dc.relation.ispartofjournalMicrobial Ecology
dc.relation.ispartofvolume76
dc.subject.fieldofresearchSoil sciences
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEcology not elsewhere classified
dc.subject.fieldofresearchMicrobiology
dc.subject.fieldofresearchcode4106
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode310399
dc.subject.fieldofresearchcode3107
dc.subject.keywordsForest plantation
dc.subject.keywordsResidue retention
dc.subject.keywordsSoil δ15N
dc.subject.keywordsNuclear magnetic resonance
dc.subject.keywordsBacterial composition
dc.subject.keywordsBacterial diversity
dc.titleLong-Term Harvest Residue Retention Could Decrease Soil Bacterial Diversities Probably Due to Favouring Oligotrophic Lineages
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, School of Environment and Science
gro.hasfulltextNo Full Text
gro.griffith.authorXu, Zhihong
gro.griffith.authorBlumfield, Tim J.


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