DOI: 10.1007/s10533-016-0239-z
Scopus记录号: 2-s2.0-84983803559
论文题名: Diversity of leaf litter leachates from temperate forest trees and its consequences for soil microbial activity
作者: Joly F.-X. ; Fromin N. ; Kiikkilä O. ; Hättenschwiler S.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2016
卷: 129, 期: 3 起始页码: 373
结束页码: 388
语种: 英语
英文关键词: Aboveground-belowground interaction
; Carbon and nutrient cycling
; Dissolved organic matter
; European forests
; Freshly fallen litter
; Functional diversity
; Leachate quality
Scopus关键词: broad-leaved forest
; carbon cycle
; decomposition
; dissolved organic matter
; leachate
; leaf litter
; microbial activity
; microbial community
; microcosm
; nitrogen cycle
; soil microorganism
; soil respiration
; temperate forest
; Europe
英文摘要: Leaching of water-soluble compounds is a dominant process during the first stages of litter decomposition, providing the microorganisms in the underlying soil with an important source of labile carbon and nutrients. Leachate composition (quantity and quality) can vary considerably among different plant species, but its consequences for soil microbially-driven processes remains largely unexplored. Here, we evaluated the differences in leachate quantity and quality from freshly fallen leaf litter of widely distributed coniferous and deciduous broadleaf tree species of European temperate forests, and their effects on soil microbial responses in a microcosm experiment under controlled conditions. Leachates of broadleaf litter contained higher amounts of carbon and nitrogen available for microbes, but with substantially higher aromaticity than leachates from coniferous litter. A one-time leachate addition to soils immediately increased soil microbial respiration with longer lasting effects of deciduous broadleaf compared to coniferous litter leachates leading to a microbial community with an apparently more efficient use of carbon. When leachates of different species were mixed, the observed microbial responses differed in some cases from that expected based on soils to which leachates from single species were added. These non-additive effects were partly explained by the functional dissimilarity of leachate traits, suggesting complementary resources for microorganisms when leachates of different species are available. Our data show that species-specific litter-derived leachates of varying quantity and quality and their mixtures distinctly affect soil microorganisms. In forest ecosystems with recurrent leaf litter inputs from the same species, such leachate effects may determine soil processes also in the longer term, controlling biogeochemical cycling to an important degree. © 2016, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83367
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: CEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE, 1919 Route de Mende, Montpellier Cedex 5, France; Vantaa Research Center, Finnish Forest Research Institute, P.O. Box 18, Vantaa, Finland; PROMES-CNRS, 7 rue du Four Solaire, Font Romeu – Odeillo, France; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, United States
Recommended Citation:
Joly F.-X.,Fromin N.,Kiikkilä O.,et al. Diversity of leaf litter leachates from temperate forest trees and its consequences for soil microbial activity[J]. Biogeochemistry,2016-01-01,129(3)