Titlebook: Carbon and Nitrogen Cycling in European Forest Ecosystems; Ernst-Detlef Schulze Book 2000 Springer-Verlag Berlin Heidelberg 2000 Artenviel

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E. S. Mistakidis,G. E. Stavroulakistures of N, C and S compounds due to fractionation. Thus, tracing processes of isotopic fractionations in forest ecosystems can help identify transfer pathways and capacities. Atmospheric nitrogen pollution has been recognised as the cause for formerly N-limited forests to approach N saturation (.,

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CH…π Interaction in Organic Moleculesnger be recognised, and organic molecules are mineralised to their prime constituents: H.O, CO. and recalcitrant organic as well as mineral components. During litter decomposition, C may additionally be leached as dissolved organic C to the mineral soil. Other mineral components, like K and Mn, are

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https://doi.org/10.1007/978-3-642-27582-1(N) mineralisation is by definition the biotic conversion of organic N into inorganic N, mainly NH.. and NO... Many organism groups, bacteria, fungi and certain soil animals, possess this capability, and the product formed is generally ammonia/ammonium, depending on the soil pH. Ammonium (NH..) can

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https://doi.org/10.1007/978-3-642-27582-1rests have included the dissolved organic nitrogen fraction (e.g. Koopmans et al. 1996), although DON may be the dominant N form in soil water in many ecosystems (.; .). DON accounted for 95% of N losses in streams in an undisturbed natural temperate forest at pristine conditions in Chile (.). Nitro

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Tree Biomass, Growth and Nutrient Poolsview of global change and production of woody raw material. Furthermore, in forest ecosystems the bio-geochemical cycles of carbon and mineral nutrients, particularly nitrogen, are intimately related because foliage nutrient content strongly controls carbon assimilation by forests and, therefore, their primary productivity (.).

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Soil Respiration in Beech and Spruce Forests in Europe: Trends, Controlling Factors, Annual Budgets om the atmosphere, while respiration releases CO. into the atmosphere. Ecosystem respiration includes autotrophic and heterotrophic processes: the first is caused by the growth and maintenance of plant tissues, while the second is mainly the result of the decomposition of litter and soil organic matter brought about by microbial biomass.

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Litter Decompositionnger be recognised, and organic molecules are mineralised to their prime constituents: H.O, CO. and recalcitrant organic as well as mineral components. During litter decomposition, C may additionally be leached as dissolved organic C to the mineral soil. Other mineral components, like K and Mn, are released from the original tissue.