DOI: 10.1007/s10533-014-0015-x
Scopus记录号: 2-s2.0-84917738917
论文题名: Chemical properties of decaying wood in an old-growth spruce forest and effects on soil chemistry
作者: Bade C. ; Jacob M. ; Leuschner C. ; Hauck M.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122, 期: 1 起始页码: 1
结束页码: 13
语种: 英语
英文关键词: Bark chemistry
; Forest dynamics
; Picea abies
; Soil nutrient availability
; Stemflow chemistry
; Wood decay
Scopus关键词: acidity
; biomass
; concentration (composition)
; dead wood
; old-growth forest
; soil chemistry
; soil nutrient
; soil organic matter
; streamflow
; tree
; bryophytes
; Picea
; Picea abies
英文摘要: Live trees influence the nutrient status of the soil by the interception of substances from the atmosphere, the uptake of nutrients from the soil, and the deposition of litter. In an unmanaged old-growth spruce mountain forest on acidic soil, we analyzed how the death and decay of spruce trees affects the acidity and element concentrations of the soil, tree bark (or outermost stemwood) and stemflow. Key study objective was to examine whether the element release from decaying deadwood significantly increases the available soil nutrient stocks in the senescence phase of coniferous forests. Bark and stemflow chemistry responded to the death and decay of the trees with lowered acidity and reduced nutrient concentrations, which was attributed to the gradual loss of the intercepting canopy surface. Bark and stemflow concentrations of base cations (K, Ca, Mg) showed a transient peak in the course of wood decay. Published evidence suggests that the variability in bark and stemflow chemistry detected across the sequence of wood decay stages was sufficient to shape the epiphytic lichen and bryophyte communities. The death and decay of spruce trees also resulted in elevated base saturation near standing deadwood. Downed deadwood had a negligible effect on soil chemistry, among others due to slow decomposition in the studied cold mountain forest. Soil acidity was not significantly affected by deadwood. The release of base cations from standing deadwood to the soil suggests that sparing part of the trees in managed forests from logging could counteract nutrient depletion through timber harvesting. © 2014, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83538
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: Plant Ecology, Albrecht von Haller Institute for Plant Sciences, Georg August University of Göttingen, Untere Karspüle 2, Göttingen, Germany
Recommended Citation:
Bade C.,Jacob M.,Leuschner C.,et al. Chemical properties of decaying wood in an old-growth spruce forest and effects on soil chemistry[J]. Biogeochemistry,2015-01-01,122(1)