DOI: 10.1007/s10533-015-0129-9
Scopus记录号: 2-s2.0-84944154588
论文题名: Influence of manganese on decomposition of common beech (Fagus sylvatica L.) leaf litter during field incubation
作者: Trum F. ; Titeux H. ; Ponette Q. ; Berg B.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 125, 期: 3 起始页码: 349
结束页码: 358
语种: 英语
英文关键词: Carbon release
; Exponential decay model
; Litter decomposition
; Litterbags
; Manganese
Scopus关键词: climate conditions
; concentration (composition)
; deciduous tree
; decomposition
; dissolved organic carbon
; enzyme activity
; experimental study
; fieldwork
; forest ecosystem
; hydrophobicity
; leachate
; leaf litter
; lignin
; manganese
; Fagus
; Fagus sylvatica
英文摘要: Litter decomposition is of crucial importance for sustainable production in forest ecosystems with pedoclimatic conditions and nutrients being the main factors controlling litter decomposition. In particular, manganese (Mn) could accelerate decomposition of litter in the lignin-dominated (late) stage. Correlations between Mn concentration and litter decay rate were previously reported and explained by the role of Mn2+ in lignin degradation as a cofactor of the enzyme manganese peroxidase. However, the role of Mn in litter decay has been little experimentally tested yet. This study aims to assess the increased decomposition rate of common beech (Fagus sylvatica L.) leaf litter experimentally enriched in Mn (0.9–17.0 mg g−1) using a litterbag experiment (500 days of in situ incubation). Mass loss and acid unhydrolyzable residue, Mn, carbon (C), and dissolved organic carbon were determined in remaining materials and litter leachates. Our results showed a positive influence of Mn on litter and C decay and on the release of hydrophobic dissolved organic C. We explained these results by an enhanced ligninolysis leading to an increase in dissolved polyphenolic compounds. © 2015, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83480
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Earth and Life Institute, Université Catholique de Louvain, Croix du Sud 2 (bte L07.05.10), Louvain-la-Neuve, Belgium; Department of Forest Sciences, University of Helsinki, P.O. box 27, Helsinki, Finland
Recommended Citation:
Trum F.,Titeux H.,Ponette Q.,et al. Influence of manganese on decomposition of common beech (Fagus sylvatica L.) leaf litter during field incubation[J]. Biogeochemistry,2015-01-01,125(3)