NDLI: Chemical properties of decaying wood in an old-growth spruce forest and effects on soil chemistry

Content Provider	Springer Nature Link
Author	Bade, Claudia Jacob, Mascha Leuschner, Christoph Hauck, Markus
Copyright Year	2014
Abstract	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.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	01682563
Journal	Biogeochemistry
Volume Number	122
Issue Number	1
e-ISSN	1573515X
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-09-07
Publisher Place	Cham
Access Restriction	Subscribed
Subject Keyword	Wood decay Soil nutrient availability Bark chemistry Stemflow chemistry Picea abies Forest dynamics Biogeosciences Ecosystems Environmental Chemistry Life Sciences
Content Type	Text
Resource Type	Article
Subject	Earth-Surface Processes Environmental Chemistry Water Science and Technology

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