globalchange  > 气候减缓与适应
DOI: 10.1007/s10533-015-0147-7
Scopus记录号: 2-s2.0-84948093716
论文题名:
Getting to the root of the problem: litter decomposition and peat formation in lowland Neotropical peatlands
作者: Hoyos-Santillan J.; Lomax B.H.; Large D.; Turner B.L.; Boom A.; Lopez O.R.; Sjögersten S.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 126, 期:2018-01-02
起始页码: 115
结束页码: 129
语种: 英语
英文关键词: Carbon ; Litter decomposition ; Mass spectrometry ; Pyrolysis ; Root ; Tropical peat
Scopus关键词: decomposition ; evergreen tree ; litter ; lowland environment ; mass spectrometry ; Neotropical Region ; peatland ; pyrolysis ; shrub ; soil carbon ; soil depth ; Panama [Central America] ; Campnosperma ; Raphia taedigera
英文摘要: Litter decomposition is an important control on carbon accumulation in tropical peatlands. We investigated the contribution of different litter tissues from two peatland tree species (Raphia taedigera and Campnosperma panamensis) to peat formation in four lowland tropical peatlands in the Republic of Panama. Leaves, stems, and roots decomposed at different rates; with roots being the slowest to decompose among tissues. The position of litter in the peat profile strongly influenced the decomposition rate of all tissue types. Roots decomposed up to five times faster at the surface than at 50 cm depth. Molecular characterization of litter and peat profiles by tetramethylammonium-pyrolysis–gas chromatography–mass spectrometry (TMAH-Py-GC/MS) revealed that the peat is formed predominantly of decomposed roots and stems, as indicated by the high lignin, low methylated fatty acids and carbohydrate concentrations in these litter types. Taken together, these data demonstrate that roots play a fundamental role in the formation of lowland Neotropical peatlands. © 2015, Springer International Publishing Switzerland.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83462
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: Division of Agricultural and Environmental Science, School of Biosciences, The University of Nottingham, Gateway Building, Sutton Bonington Campus, Loughborough, United Kingdom; Department of Chemical and Environmental Engineering, The University of Nottingham, Coates Building, University Park Campus, Nottingham, United Kingdom; Smithsonian Tropical Research Institute, Apartado Balboa, Ancon, Panama; Department of Geography, University of Leicester, Bennett Building - F72b, Leicester, United Kingdom; Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT-AIP), Ciudad del Saber, Clayton, Panama

Recommended Citation:
Hoyos-Santillan J.,Lomax B.H.,Large D.,et al. Getting to the root of the problem: litter decomposition and peat formation in lowland Neotropical peatlands[J]. Biogeochemistry,2015-01-01,126(2018-01-02)
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