DOI: 10.1111/gcb.12113
论文题名: The Microbial Efficiency-Matrix Stabilization (MEMS) framework integrates plant litter decomposition with soil organic matter stabilization: Do labile plant inputs form stable soil organic matter?
作者: Cotrufo M.F. ; Wallenstein M.D. ; Boot C.M. ; Denef K. ; Paul E.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 4 起始页码: 988
结束页码: 995
语种: 英语
英文关键词: Humification
; Litter decomposition
; Litter quality
; Microbial substrate use efficiency
; Soil matrix protection
; Soil organic matter
Scopus关键词: carbon cycle
; decomposition
; humification
; litter
; microbial activity
; nitrogen cycle
; soil organic matter
; stabilization
; substrate
; article
; bioremediation
; metabolism
; microbiology
; plant
; soil
; Biodegradation, Environmental
; Plants
; Soil
; Soil Microbiology
英文摘要: The decomposition and transformation of above- and below-ground plant detritus (litter) is the main process by which soil organic matter (SOM) is formed. Yet, research on litter decay and SOM formation has been largely uncoupled, failing to provide an effective nexus between these two fundamental processes for carbon (C) and nitrogen (N) cycling and storage. We present the current understanding of the importance of microbial substrate use efficiency and C and N allocation in controlling the proportion of plant-derived C and N that is incorporated into SOM, and of soil matrix interactions in controlling SOM stabilization. We synthesize this understanding into the Microbial Efficiency-Matrix Stabilization (MEMS) framework. This framework leads to the hypothesis that labile plant constituents are the dominant source of microbial products, relative to input rates, because they are utilized more efficiently by microbes. These microbial products of decomposition would thus become the main precursors of stable SOM by promoting aggregation and through strong chemical bonding to the mineral soil matrix. © 2012 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62496
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Soil and Crop Sciences, Colorado State University, 200 W. Lake st, Fort Collins, CO, 80523, United States; Natural Resource Ecology Laboratory, Colorado State University, 200 W. Lake st, Fort Collins, CO, 80523, United States
Recommended Citation:
Cotrufo M.F.,Wallenstein M.D.,Boot C.M.,et al. The Microbial Efficiency-Matrix Stabilization (MEMS) framework integrates plant litter decomposition with soil organic matter stabilization: Do labile plant inputs form stable soil organic matter?[J]. Global Change Biology,2013-01-01,19(4)