DOI: 10.1111/gcb.12974
论文题名: Unexpected stimulation of soil methane uptake as emergent property of agricultural soils following bio-based residue application
作者: Ho A. ; Reim A. ; Kim S.Y. ; Meima-Franke M. ; Termorshuizen A. ; de Boer W. ; van der Putten W.H. ; Bodelier P.L.E.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 10 起始页码: 3864
结束页码: 3879
语种: 英语
英文关键词: pmoA
; Atmospheric methane oxidation
; Bio-based residues
; Greenhouse gas
; Methane
; Methanotrophs
Scopus关键词: agricultural intensification
; agricultural practice
; agricultural soil
; atmospheric sink
; greenhouse gas
; land use change
; methane
; methanotrophy
; oxidation
; Methylosinus
; fertilizer
; methane
; soil
; bacterium
; chemistry
; metabolism
; microbiology
; Netherlands
; oxidation reduction reaction
; soil
; Bacteria
; Fertilizers
; Methane
; Netherlands
; Oxidation-Reduction
; Soil
; Soil Microbiology
英文摘要: Intensification of agriculture to meet the global food, feed, and bioenergy demand entail increasing re-investment of carbon compounds (residues) into agro-systems to prevent decline of soil quality and fertility. However, agricultural intensification decreases soil methane uptake, reducing, and even causing the loss of the methane sink function. In contrast to wetland agricultural soils (rice paddies), the methanotrophic potential in well-aerated agricultural soils have received little attention, presumably due to the anticipated low or negligible methane uptake capacity in these soils. Consequently, a detailed study verifying or refuting this assumption is still lacking. Exemplifying a typical agricultural practice, we determined the impact of bio-based residue application on soil methane flux, and determined the methanotrophic potential, including a qualitative (diagnostic microarray) and quantitative (group-specific qPCR assays) analysis of the methanotrophic community after residue amendments over 2 months. Unexpectedly, after amendments with specific residues, we detected a significant transient stimulation of methane uptake confirmed by both the methane flux measurements and methane oxidation assay. This stimulation was apparently a result of induced cell-specific activity, rather than growth of the methanotroph population. Although transient, the heightened methane uptake offsets up to 16% of total gaseous CO2 emitted during the incubation. The methanotrophic community, predominantly comprised of Methylosinus may facilitate methane oxidation in the agricultural soils. While agricultural soils are generally regarded as a net methane source or a relatively weak methane sink, our results show that methane oxidation rate can be stimulated, leading to higher soil methane uptake. Hence, even if agriculture exerts an adverse impact on soil methane uptake, implementing carefully designed management strategies (e.g. repeated application of specific residues) may compensate for the loss of the methane sink function following land-use change. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61578
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, PB Wageningen, Netherlands; Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch Strae 10, Marburg, Germany; SoilCares Research, Binnenhaven 5, PD Wageningen, Netherlands; Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, PB Wageningen, Netherlands; Laboratory of Nematology, Wageningen University and Research Centre (WUR), PO Box 8123, ES Wageningen, Netherlands
Recommended Citation:
Ho A.,Reim A.,Kim S.Y.,et al. Unexpected stimulation of soil methane uptake as emergent property of agricultural soils following bio-based residue application[J]. Global Change Biology,2015-01-01,21(10)