dc.contributor.author | Zhang, Yaling | |
dc.contributor.author | Zhang, Manyun | |
dc.contributor.author | Tang, Li | |
dc.contributor.author | Che, Rongxiao | |
dc.contributor.author | Chen, Hong | |
dc.contributor.author | Blumfield, Tim | |
dc.contributor.author | Boyd, Sue | |
dc.contributor.author | Nouansyvong, Mone | |
dc.contributor.author | Xu, Zhihong | |
dc.date.accessioned | 2019-07-14T12:30:42Z | |
dc.date.available | 2019-07-14T12:30:42Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 0095-3628 | |
dc.identifier.doi | 10.1007/s00248-018-1162-8 | |
dc.identifier.uri | http://hdl.handle.net/10072/381833 | |
dc.description.abstract | Harvest 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.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Springer | |
dc.relation.ispartofpagefrom | 771 | |
dc.relation.ispartofpageto | 781 | |
dc.relation.ispartofissue | 3 | |
dc.relation.ispartofjournal | Microbial Ecology | |
dc.relation.ispartofvolume | 76 | |
dc.subject.fieldofresearch | Soil sciences | |
dc.subject.fieldofresearch | Ecology | |
dc.subject.fieldofresearch | Ecology not elsewhere classified | |
dc.subject.fieldofresearch | Microbiology | |
dc.subject.fieldofresearchcode | 4106 | |
dc.subject.fieldofresearchcode | 3103 | |
dc.subject.fieldofresearchcode | 310399 | |
dc.subject.fieldofresearchcode | 3107 | |
dc.subject.keywords | Forest plantation | |
dc.subject.keywords | Residue retention | |
dc.subject.keywords | Soil δ15N | |
dc.subject.keywords | Nuclear magnetic resonance | |
dc.subject.keywords | Bacterial composition | |
dc.subject.keywords | Bacterial diversity | |
dc.title | Long-Term Harvest Residue Retention Could Decrease Soil Bacterial Diversities Probably Due to Favouring Oligotrophic Lineages | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.faculty | Griffith Sciences, School of Environment and Science | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Xu, Zhihong | |
gro.griffith.author | Blumfield, Tim J. | |