Nutrient fluxes via leaching from coarse woody debris in a Fagus sylvatica forest in the Solling Mountains, Germany

Kuehne, Christian; Donath, C.; Müller-Using, Sabine; Bartsch, Norbert

doi:10.1139/x08-088

Cited by 50 publications

(29 citation statements)

References 38 publications

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“…potassium, can be released at a higher rate; thus, their supply in deadwood is significantly reduced with advancing decomposition (Holub et al 2001;Christensen and Vesterdal 2003;Yang et al 2010). Kuehne et al (2008) Significance effect (P < 0.05) are shown in italic analysed the composition of leachate obtained through rinsing beech logs and determined a decrease of potassium concentration in the leachate originating from wood in the IV DC in relation to I, II and III DCs. In the study conducted by the above authors, the concentration of nitrate, ammonium, Ca and Mg ions was at its highest in the wood in the highest decay class and the obtained ion contents in the leachate from beech wood were similar to the contents observed in the present study for oak wood.…”

Section: Discussionmentioning

confidence: 99%

How the deadwood of different tree species in various stages of decomposition affected nutrient dynamics?

et al. 2017

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Purpose The aim of the study was to estimate how the deadwood of different tree species in various stages of decomposition affected nutrient dynamics. Materials and methods The deadwood of eight species (common alder, common aspen, common ash, silver fir, pedunculate oak, Norway spruce, common hornbeam and silver birch) was selected. Three logs from each species in the third, fourth and fifth decay classes were chosen for analysis. Wood in the third decay class was characterised by larger hard fragments, fragmented bark and no branches; in the fourth decay class, it was characterised by small pieces and a fragmented bark; and in the fifth decay class, it was characterised by a soft texture and no bark. The investigation was carried out in the Czarna Rózga Reserve in Central Poland. Tension lysimeters were installed under each log in the humus horizon. The water samples collected from tension lysimeters were chemically analysed in the laboratory. The water chemistry was analysed by means of ion chromatography using a DIONEX ICS 5000 unit. Results and discussion The leachate obtained from different tree species contained different ion concentrations. The high similarity of the concentration of total anions and statistically significant differences in the content of total cations were determined in the leachate from the wood of coniferous and deciduous species. The concentration of the cations increases with the advancement of the decomposition level. A general linear model analysis demonstrates that wood species and the decomposition classes are of equal importance in defining the ion composition of the filtrate leaching from deadwood. Conclusions Wood at the highest decomposition stage releases more ions to the surface soil layers than wood at the lower decay class. An exception from the rule is the wood of birch, which in the III decay class releases more ions than in its higher decay classes. When comparing the ionic composition of leachate released from wood of coniferous and deciduous tree species, the latter are characterised by higher cation concentrations in comparison with coniferous species. Among the deciduous species, wood of such species as ash, hornbeam, aspen, birch and alder has the most favourable effects on the soil surface horizons through its supply with ionic substances. The ash wood releases high amounts of calcium, hornbeam wood releases magnesium and sodium, and aspen releases calcium, potassium and nitrate anion. From the analysed coniferous species, fir wood has a more favourable effect in terms of ion release to soil than spruce wood.

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Section: Discussionmentioning

confidence: 99%

How the deadwood of different tree species in various stages of decomposition affected nutrient dynamics?

et al. 2017

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“…Nitrogen is expected to limit decomposition because the degradative enzymes needed for wood decay are nitrogen-rich, with C : N ratios of $ 3 : 1 (Sterner & Elser, 2002), far narrower than wood ratios of 200-1200 : 1. As a result, the immobilization and accumulation of nitrogen during the decomposition process (Busse, 1994), the fixation of atmospheric N (Jurgensen et al, 1984), the capture of N from atmospheric deposition (Kuehne et al, 2008), and possibly the retranslocation of N through extensive fungal hyphae are important processes to reduce N limitation of fungi and accelerate wood decomposition. The retranslocation of N and other nutrients through fungal hyphae from soil or forest floor to logs has been often discussed (e.g., Wells & Boddy, 1995), but has not been systematically quantified.…”

Section: P L a N T T R A I T S A N D T H E Fat E O F C I N W O O D 2435mentioning

confidence: 99%

Plant traits and wood fates across the globe: rotted, burned, or consumed?

Cornwell

Cornelissen

Allison

et al. 2009

Global Change Biology

350

379

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Wood represents the defining feature of forest systems, and often the carbon in woody debris has a long residence time. Globally, coarse dead wood contains 36-72 Pg C, and understanding what controls the fate of this C is important for predicting C cycle responses to global change. The fate of a piece of wood may include one or more of the following: microbial decomposition, combustion, consumption by insects, and physical degradation. The probability of each fate is a function of both the abiotic environment and the wood traits of the species. The wood produced by different species varies substantially in chemical, micro-and macro-morphological traits; many of these characteristics of living species have 'afterlife' effects on the fate and turnover rate of dead wood. The colonization of dead wood by microbes and their activity depends on a large suite of wood chemical and anatomical traits, as well as whole-plant traits such as stem-diameter distributions. Fire consumption is driven by a slightly narrower range of traits with little dependence on wood anatomy. Wood turnover due to insects mainly depends on wood density and secondary chemistry. Physical degradation is a relatively minor loss pathway for most systems, which depends on wood chemistry and environmental conditions. We conclude that information about the traits of woody plants could be extremely useful for modeling and predicting rates of wood turnover across ecosystems. We demonstrate how this trait-based approach is currently limited by oversimplified treatment of dead wood pools in several leading global C models and by a lack of quantitative empirical data linking woody plant traits with the probability and rate of each turnover pathway. Explicitly including plant traits and woody debris pools in global vegetation climate models would improve predictions of wood turnover and its feedback to climate.

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“…Coarse woody debris (CWD) is structurally and functionally very important for forest ecosystems, in particular for biodiversity (Siitonen 2001), the energy and nutrient cycle (Müller-Using and Bartsch 2007;Kuehne et al 2008) and carbon storage (Harmon et al 1986;Turner et al 1995;Pregitzer and Euskirchen 2004;Kahl et al 2012). Whereas the amount of CWD may comprise up to 30 % or even 40 % of the total timber volume in natural beech (Commarmot et al 2013) and spruce (Ranius et al 2003) forests, this share is typically less than 5 % in managed European forests (Bütler and Schlaepfer 2004;MCPFE 2007).…”

Section: Introductionmentioning

confidence: 99%

Decomposition dynamics of coarse woody debris of three important central European tree species

2015

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Background: Coarse woody debris (CWD) is an important element of forest structure that needs to be considered when managing forests for biodiversity, carbon storage or bioenergy. To manage it effectively, dynamics of CWD decomposition should be known. Methods: Using a chronosequence approach, we assessed the decomposition rates of downed CWD of Fagus sylvatica, Picea abies and Pinus sylvestris, which was sampled from three different years of tree fall and three different initial diameter classes (>10 -≤ 20 cm, >20 -≤40 cm, >40 cm). Samples originating from wind throws in 1999 were collected along a temperature and precipitation gradient. Based on the decay class and associated wood densities, log volumes were converted into CWD mass and C content. Log fragmentation was assessed over one year for log segments of intermediate diameters (>20 -40 cm) after 8 and 18 years of decomposition. Results: Significantly higher decomposition constants (k) were found in logs of F. sylvatica (0.054 year

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Nutrient fluxes via leaching from coarse woody debris in a Fagus sylvatica forest in the Solling Mountains, Germany

Cited by 50 publications

References 38 publications

How the deadwood of different tree species in various stages of decomposition affected nutrient dynamics?

How the deadwood of different tree species in various stages of decomposition affected nutrient dynamics?

Plant traits and wood fates across the globe: rotted, burned, or consumed?

Decomposition dynamics of coarse woody debris of three important central European tree species

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