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... Addition of inorganic phosphorus (P) to soil has often been reported to cause increases in soil respiration, and this has been attributed to an alleviation of microbial P limitation. As an alternative explanation for this phenomenon, we tested the hypothesis that addition of inorganic P increases microbial respiration because added inorganic P exchanges with sorbed organic compounds in soil, and t ...
Fagus; Picea; Podzols; air; air pollution; basins; ecosystems; forests; granite; humus; hydrochemistry; mica; mineral soils; pH; pollution load; runoff; soil water; spring; summer; throughfall; Austria
Abstract:
... Research plots in Vojířov were established in a spruce stand and in a mixed stand. They are situated south of Jindřichův Hradec, near the border with Austria, on the ridge sloping to the Třeboň basin, exposed to western winds. The soils (Haplic Podzols) have developed on deep overlaps of eolian sands, between boulders of mica granite. Since summer 1991, the chemistry of precipitation water and run ...
... Background and Objectives: In the near future, in Europe a raised availability of hardwoods is expected. One possible sales market is the building sector, where medium dense European hardwoods could be used as load bearing elements. For the hardwood species beech, oak, and sweet chestnut technical building approvals already allow the production of hardwood glulam. For the species maple and ash thi ...
... Rapanea melanophloeos is a tree indigenous to Southern Africa. Previous work has reported on the potential of the bark and leaf extracts/decoctions as antifungal, anthelmintic and molluscicidal treatments. This study characterised the antidiabetic potential of R. melanophloeos leaf aqueous and methanolic extracts by determining, the antioxidant activity and ability to inhibit the enzyme α-amylase. ...
Alnus; Betula; Fagus; Picea; Pinus; Quercus; case studies; hardwood; models; prices; seasonal variation; softwood; state forests; timber production; timber supply; time series analysis; trees; Poland
Abstract:
... The objective of the study was to verify the applicability and usefulness of time series decomposition in analyzing the variability of timber prices and supply in Poland. The employed multiplicative model was the product of four components: cyclical, seasonal, and irregular fluctuations and the long-term trend. The elements of the time series were determined by means of the Census X11 method, whil ...
... The influence of inorganic species content on the slow pyrolysis of thermally thick wood particles has been investigated with the application of laser-based spectroscopic techniques. Infrared laser absorption and laser-induced fluorescence were used to characterize, on-line and in situ, the release of permanent gases (CO and CH4) and of species emitting fluorescence, respectively. These advanced m ...
Salim Belyazid; Jennifer Phelan; Bengt Nihlgård; Harald Sverdrup; Charles Driscoll; Ivan Fernandez; Julian Aherne; Leslie M. Teeling-Adams; Scott Bailey; Matt Arsenault; Natalie Cleavitt; Brett Engstrom; Robin Dennis; Dan Sperduto; David Werier; Christopher Clark
Fagus; air pollution; biomass; botanical composition; chemistry; climate; climate change; community structure; environmental indicators; forest ecosystems; ground vegetation; hardwood forests; models; nitrogen; plant communities; soil properties; soil quality; soil solution; streams; sulfur; trees; understory; Northeastern United States
Abstract:
... The integrated forest ecosystem model ForSAFE-Veg was used to simulate soil processes and understory vegetation composition at three—sugar maple, beech, yellow birch—hardwood forest sites in the Northeastern United States (one at Hubbard Brook, NH, and two at Bear Brook, ME). Input data were pooled from a variety of sources and proved coherent and consistent. While the biogeochemical component For ...
Fagus; Nothofagus betuloides; climate; forests; growth rings; latitude; sea level; summer; surface water temperature; time series analysis; tree growth; trees; Argentina; Chile
Abstract:
... KEY MESSAGE: Tree growth of Nothofagus betuloides forests south of 50°S is affected by local temperature and precipitation together with large-scale high-latitude climate patterns, but also significant influences from the Tropical Pacific were found. The characterization of past climate dynamics in southern South America is difficult due to the shortness of instrumental data. However, abundant for ...
... Deep eutectic solvents are alternative solvent systems for biomass processing. Eutectic mixtures of lactic acid:alanine (in a molar ratio of 9:1), lactic acid:betaine (2:1), lactic acid:glycine (9:1) choline chloride:glycolic acid (1:3) and choline chloride:ethylene glycol (1:2) were tested. The characteristic properties (density, viscosity and conductivity) of these lactic acid or choline chlorid ...
... Over the past five years, the mobilization of fiber wood assortments for promoting material use, and the integration of supply and conversion chains between biorefineries and the wood panel industry have been intensively investigated. In this regard, the production of fibers and by-products from industrial wood and the substitution of phenolic resin systems with natural polymers such as lignin off ...
Fagus; bark; health status; plant protection; Carpathian region
Abstract:
... Symptoms of non-specific bark necroses in beech trees of all ages have lately been described. We investigated the occurrence of bark necrotic disease in beech thicket and health status of the trees. Our objective was to examine how bark necrotic wounds persist and the regenerative potential of young beech thicket. The research experiment was carried out at two isolated localities in the Western Ca ...
Bryophyta; Fagus; Picea; air; altitude; dead wood; epiphytes; forests; humidity; microhabitats; mosses and liverworts; pH; refuge habitats; species richness; threatened species; watersheds; wood
Abstract:
... The presence data of 153 bryophyte species, recorded on beech (BDW) and spruce (SDW) deadwood in the managed forests within a montane watershed, were analysed by controlling for different plot size, substrate pH and elevation. Only three pleurocarpous species, which were probably remnant epiphytes from live wood, showed relative specificity for BDW, but none to SDW. The few species displaying pref ...
... Biochar has been proposed mainly as a soil amendment, positively affecting plant growth/yield, and to a lesser degree for growing media. In this study, four commercial grade biochars (A-forest wood; B-husks and paper fiber; C-bamboo and D-fresh wood screening), mostly wood-based materials, were selected. Initial mixtures of peat (P) with different Biochar type and ratios (0-5-10-15-20%) were selec ...
Fagus; Picea abies; Pinus; Tetrao urogallus; altitude; climatic zones; data collection; databases; environmental models; forest stands; forests; habitats; land cover; monitoring; national parks; summer; temperature; trees; Greece
Abstract:
... Capercaillie is a species of particular conservation importance for Europe due to the observed population decline in various parts of its distribution. In the current study, the environmental and habitat requirements of the species are investigated at the southernmost range of its European distribution (Rodopi Mountain-Range National Park, northern Greece) using a set of 95 observations of species ...
Chiara Lelli; Hans Henrik Bruun; Alessandro Chiarucci; Davide Donati; Fabrizio Frascaroli; Örjan Fritz; Irina Goldberg; Juri Nascimbene; Anders P. Tøttrup; Carsten Rahbek; Jacob Heilmann-Clausen
... We investigated the consistency between richness and trait-based diversity metrics in capturing the effects of management-related habitat factors on biodiversity. The choice of biodiversity metrics can substantially affect the evaluation of conservation tools. However, the relative sensitivity of different metrics is not well investigated, especially in a multi-taxon framework.European beech fores ...
Alnus incana; Betula; Dendrobaena; Fagus; Picea; Pinus; biomass; biotopes; coniferous forests; conservation areas; earthworms; montane forests; mosses and liverworts; nitrogen; rocks; soil water content; summer; trees; Caucasus region
Abstract:
... Contribution of micromosaic structure of high mountain forests to ecological diversity of earthworms have been assessed. Intact forests of Arkhyz section of Teberda Nature Reserve were studied. The dominant types of forests have been recognized for the first time based on eco-coenotic classification. The ecological conditions of their functioning have been studied. Earthworm numbers have been stud ...
Magnus Zingler Stummann; Asger Baltzer Hansen; Lars Pilsgaard Hansen; Bente Davidsen; Søren Birk Rasmussen; Peter Wiwel; Jostein Gabrielsen; Peter Arendt Jensen; Anker Degn Jensen; Martin Høj
... Catalytic hydropyrolysis of beech wood was conducted in a fluid bed reactor at 450 °C and a total pressure of 26 bar. The differences in hydrodeoxygenation activity, selectivity, and the resulting product compositions between sulfided Mo/MgAl₂O₄, CoMo/MgAl₂O₄, and NiMo/MgAl₂O₄ catalysts have been investigated. The acidity and molybdate species in the oxide catalyst precursors were characterized wi ...
... In recent decades, the traditional management of woods has ceased in several parts of the Apennine ridge, with the result that some woods have not undergone forestry for 40–70 years. The research aim was to assess the variation of species and functional composition in the herb layer of Ostrya carpinifolia woods (central Italy), after cessation of the usual management (coppice-with-standards). Usin ...
... Since recent studies reveal citric acid to be favorable for estimating plant‐available P in soils, we investigated if it can also be used for assessing other nutrients. According to our results, it provides stronger correlations with the tree nutrition for Mg (beech, spruce), Ca+K (beech) and Fe (spruce) than the standard methods for determining exchangeable cations. Thus, when estimating plant‐av ...
... Recent advances in laser spectroscopy have allowed for real-time measurements of the 13C/12C isotopic ratio in CO2, thereby providing new ways to investigate carbon cycling in natural ecosystems. In this study, we combined an Aerodyne quantum cascade laser spectrometer for CO2 isotopes with a LI-COR LI-8100A/8150 automated chamber system to measure the δ13C of CO2< ...