Comparison of methods to quantify respirational carbon loss of coarse woody debris

2008 ◽  
Vol 38 (11) ◽  
pp. 2738-2745 ◽  
Author(s):  
Steffen Herrmann ◽  
Jürgen Bauhus
Keyword(s):  
Coarse Woody Debris ◽  
Measurement Method ◽  
Woody Debris ◽  
European Beech ◽  
Soda Lime ◽  
Carbon Loss ◽  
Dynamic Methods ◽  
Fagus Sylvatica L ◽  
Infrared Gas Analyser

Carbon (C) loss from coarse woody debris (CWD) may be important in forest ecosystem C budgets, yet there are no standard methods of quantifying it. Here we assessed respirational C loss of log segments of European beech ( Fagus sylvatica L.) and Norway spruce ( Picea abies (L.) Karst.), to compare the two main measurement approaches (the static and dynamic methods using soda lime and an infrared gas analyser, IRGA) with three different measurement options for CWD logs. These included (i) incubation of the whole log segment, (ii) the use of small in situ chambers on the curved log surface, and (iii) extracted wedges of wood. On average, significantly higher amounts of CO2 were measured with the IRGA (125%) compared with soda lime. In addition, the soda lime method requires careful calibration of incubation length and amounts of soda lime used. Regardless of the measurement method and tree species, substantially higher amounts of CO2 were measured for whole log segments than for the other two options. Measuring respiration with small in situ chambers on logs or extracted wedges might underestimate real CO2 flux by up to 74%. We therefore recommend measurement of CWD respiration using gas analysers for large log segments.

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

2008 ◽  
Vol 38 (9) ◽  
pp. 2405-2413 ◽  
Author(s):  
C. Kuehne ◽  
C. Donath ◽  
S. I. Müller-Using ◽  
N. Bartsch
Keyword(s):  
Fagus Sylvatica ◽  
Coarse Woody Debris ◽  
Dissolved Inorganic Carbon ◽  
Woody Debris ◽  
Fungal Growth ◽  
European Beech ◽  
Nutrient Fluxes ◽  
N Saturation ◽  
Low Concentrations ◽  
Fagus Sylvatica L

To evaluate the importance of nutrient fluxes via leaching from coarse woody debris (CWD) in an area with high atmospheric nitrogen (N) inputs, throughfall and CWD leachate from logs at different stages of decomposition were investigated over a period of 14 and 27 months, respectively, in a 160-year-old European beech ( Fagus sylvatica L.) forest in northwestern Germany. Water samples, collected from 30 zero-tension lysimeters installed in pairs along 15 logs and from 27 neighboring raingauges, were chemically analyzed in the laboratory. Generally, as CWD decay advanced, the ratio of leachate to throughfall decreased, and the amount of dissolved nutrients in the leachate increased. With the exception of ammonium (NH4+) and dissolved inorganic carbon, the element concentrations in the CWD leachate were significantly higher than those in the throughfall. The concentrations of NH4+ and nitrate (NO3–) in the CWD leachate, which were very high compared with values from North American studies, were caused by the continuously high atmospheric N inputs, and the resulting N saturation in the forest ecosystem investigated. The low concentrations of the cations calcium and magnesium indicate that at this site nutrients limiting plant and fungal growth are retained and accumulated in the CWD.

scholarly journals Carbon Storage in Beech Stands on the Chřiby Uplands

2015 ◽  
Vol 34 (1) ◽  
Author(s):  
Jiří Schneider ◽  
Kateřina Holušová ◽  
Jan Rychtář ◽  
Ilja Vyskot ◽  
Ivana Lampartová
Keyword(s):  
Forest Soil ◽  
Carbon Storage ◽  
Aboveground Biomass ◽  
Woody Debris ◽  
European Beech ◽  
Belowground Biomass ◽  
Total Carbon ◽  
Fagus Sylvatica L ◽  
Quantitative Results ◽  
Scientific Statement

AbstractThe submitted scientific statement is a contribution to solutions of monitoring the storage of carbon in the woods and its emissions. Four permanent research plots were established in the area of the Chřiby uplands in the Czech Republic. The plots are made of forest stands with nearly 100% of European beech (Fagus sylvatica L.). The stands form simple spatial structures of about the same age (about 180 years). They represent, however, varying site conditions (dwarf acid beech stands, herb-rich beech stands and transitions between them). For quantification of carbon storage, standard dendrometric methods and the Field-Map technology were used. The total amount of carbon was established as the sum of further documented carbon storages in the aboveground biomass, the belowground biomass, woody debris and the forest soil. Determination of total amount of carbon was addressed in a version manner. In the first version, the estimate of the total amount of carbon was established based on Wutzler et al. (2008) equations for the aboveground biomass (AGB) and the belowground biomass (BB). In the second version, the AGB was calculated according to Joosten et al. (2004), the BB according to Wirth et al. (2003), the values of storages were consistent with Mund (2004) for woody debris, and with Mackù in Kolektiv (2007) for forest soil. Total carbon storage per hectare of stand is in average 370.2 t. Obtained outcomes support the quantitative results of latest research related to carbon in the woods.

Comparing fungal richness and community composition in coarse woody debris in Central European beech forests under three types of management

2014 ◽  
Vol 13 (3) ◽  
pp. 959-964 ◽  
Author(s):  
Witoon Purahong ◽  
Tiemo Kahl ◽  
Michael Schloter ◽  
Jürgen Bauhus ◽  
François Buscot ◽  
...  
Keyword(s):  
Community Composition ◽  
Coarse Woody Debris ◽  
Woody Debris ◽  
European Beech ◽  
Beech Forests ◽  
Central European
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