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  • 1
    Call number: PIK W 511-10-0088
    In: Ecological studies
    Description / Table of Contents: Contents: Part A Introduction ; 1 The Functional Significance of Forest Diversity: The Starting Point ; 2 An Introduction to the Functional Diversity of Temperate Forest Trees ; Part B Productivity and Growth ; 3 Diversity and Productivity in Forests: Evidence from Long-Term Experimental Plots ; 4 Confounding Factors in the Observed Productivity-Diversity Relationship in Forests ; 5 Genetic Diversity Parameters Associated with Viability Selection, Reproductive Efficiency and Growth in Forest Tree Species ; Part C Biogeochemical Cycles ; 6 Functioning of Mixed-species Stands: Evidence from a Long-Term Forest Experiment ; 7 The Role of Biodiversity on the Evaporation of Forests ; 8 Effects of Tree Species Diversity on Litter Quality and Decomposition ; 9 The Effect of Biodiversity on Carbon Storage in Soils ; 10 Silviculture and Its Interaction with Biodiversity and the Carbon Balance of Forest Soils ; Part D Animals, Pests, and Disturbances ; 11 Linkages Between Tree Diversity, Soil Faunaand Ecosystem Processes ; 12 A Test of the Biodiversity-Stability Theory: Meta-analysis of Tree Species Diversity Effects on Insect Pest Infestations, and Re-examination of Responsible Factors ; 13 Susceptibility to Fungal Pathogens of Forests Differing in Tree Diversity ; 14 Implication of Forest Diversity in Resistanceto Strong Winds ; 15 Fire Regime and Tree Diversity in Boreal Forests: Implications for the Carbon Cycle ; Part E Perspectives ; 16 The Design of Experimental Tree Plantationsfor Functional Biodiversity Research ; 17 The Functional Significance of Forest Diversity: A Synthesis ; Taxonomic Index (Genera)
    Type of Medium: Monograph available for loan
    Pages: XXI, 399 S. : Ill., graph. Darst.
    ISBN: 3540221913
    Series Statement: Ecological studies 176
    Branch Library: PIK Library
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  • 2
    Publication Date: 2022-05-26
    Description: Author Posting. © The Author(s), 2006. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Ecosystems 9 (2006): 1041-1050, doi:10.1007/s10021-005-0105-7.
    Description: Recent patterns and projections of climatic change have focused increased scientific and public attention on patterns of carbon (C) cycling and its controls, particularly the factors that determine whether an ecosystem is a net source or sink of atmospheric CO2. Net ecosystem production (NEP), a central concept in C-cycling research, has been used to represent two different concepts by C-cycling scientists. We propose that NEP be restricted to just one of its two original definitions—the imbalance between gross primary production (GPP) and ecosystem respiration (ER), and that a new term—net ecosystem carbon balance (NECB)—be applied to the net rate of C accumulation in (or loss from; negative sign) ecosystems. NECB differs from NEP when C fluxes other than C fixation and respiration occur or when inorganic C enters or leaves in dissolved form. These fluxes include leaching loss or lateral transfer of C from the ecosystem; emission of volatile organic C, methane, and carbon monoxide; and soot and CO2 from fire. C fluxes in addition to NEP are particularly important determinants of NECB over long time scales. However, even over short time scales, they are important in ecosystems such as streams, estuaries, wetlands, and cities. Recent technological advances have led to a diversity of approaches to measuring C fluxes at different temporal and spatial scales. These approaches frequently capture different components of NEP or NECB and can therefore be compared across scales only by carefully specifying the fluxes included in the measurements. By explicitly identifying the fluxes that comprise NECB and other components of the C cycle, such as net ecosystem exchange (NEE) and net biome production (NBP), we provide a less ambiguous framework for understanding and communicating recent changes in the global C cycle. Key words: Net ecosystem production, net ecosystem carbon balance, gross primary production, ecosystem respiration, autotrophic respiration, heterotrophic respiration, net ecosystem exchange, net biome production, net primary production.
    Keywords: Net ecosystem production ; Net ecosystem carbon balance ; Gross primary production ; Ecosystem respiration ; Autotrophic respiration ; Heterotrophic respiration ; Net ecosystem exchange ; Net biome production ; Net primary production
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
    Format: 297623 bytes
    Format: application/pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Global change biology 11 (2005), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Carbon dioxide, energy flux measurements and methane chamber measurements were carried out in an arctic wet tussock grassland located on a flood plane of the Kolyma river in NE Siberia over a summer period of 155 days in 2002 and early 2003. Respiration was also measured in April 2004. The study region is characterized by late thaw of the top soil (mid of June) and periodic spring floods. A stagnant water table below the grass canopy is fed by thawing of the active layer of permafrost and by flood water. The climate is continental with average daily temperature in the warmest months of 13°C (maximum temperature at midday: 28°C by the end of July), dry air (maximum vapour pressure deficit at midday: 28 hPa) and low rainfall of 50 mm during summer (July–September). Summer evaporation (July–September: 103 mm) exceeded rainfall by a factor of 2. The daily average Bowen ratio (H/LE) was 0.62 during the growing season. Net ecosystem CO2 uptake reached 10 μmol m−2 s−1 and was related to photon flux density (PFD) and vapour pressure deficit (VPD). The cumulative annual net carbon flux from the atmosphere to the terrestrial surface was estimated to be about −38 g C m−2 yr−1 (negative flux depicts net carbon sink). Winter respiration was extrapolated using the Lloyd and Taylor function. The net carbon balance is composed of a high rate of assimilation in a short summer and a fairly large but uncertain respiration mainly during autumn and spring. Methane flux (about 12 g C m−2 measured over 60 days) was 25% of C uptake during the same period of time (end of July to end of September). Assuming that CH4 was emitted only in summer, and taking the greenhouse gas warming potential of CH4 vs. CO2 into account (factor 23), the study site was a greenhouse gas source (at least 200 g Cequivalent m−2 yr−1). Comparing different studies in wetlands and tundra ecosystems as related to latitude, we expect that global warming would rather increase than decrease the CO2-C sink.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    European journal of soil science 56 (2005), S. 0 
    ISSN: 1365-2389
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Fires in boreal forests frequently convert organic matter in the organic layer to black carbon, but we know little of how changing fire frequency alters the amount, composition and distribution of black carbon and organic matter within soils, or affects podzolization. We compared black carbon and organic matter (organic carbon and nitrogen) in soils of three Siberian Scots pine forests with frequent, moderately frequent and infrequent fires.Black carbon did not significantly contribute to the storage of organic matter, most likely because it is consumed by intense fires. We found 99% of black carbon in the organic layer; maximum stocks were 72 g m−2. Less intense fires consumed only parts of the organic layer and converted some organic matter to black carbon (〉 5 g m−2), whereas more intense fires consumed almost the entire organic layer. In the upper 0.25 m of the mineral soil, black carbon stocks were 0.1 g m−2 in the infrequent fire regime.After fire, organic carbon and nitrogen in the organic layer accumulated with an estimated rate of 14.4 g C m−2 year−1 or 0.241 g N m−2 year−1. Maximum stocks 140 years after fire were 2190 g organic C m−2 and 40 g N m−2, with no differences among fire regimes. With increasing fire frequency, stocks of organic carbon increased from 600 to 1100 g m−2 (0–0.25 m). Stocks of nitrogen in the mineral soil were similar among the regimes (0.04 g m−2). We found that greater intensities of fire reduce amounts of organic matter in the organic layer but that the greater frequencies may slightly increase amounts in the mineral soil.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 437 (2005), S. 205-206 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Soils are major players in the carbon cycle — globally, they store the equivalent of about 300 times the amount of carbon now released annually through the burning of fossil fuels. It is generally assumed that most of the carbon locked up in soils is inert, and stays there. But as Bellamy et ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 277 (1954), S. 156-171 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch thermischen Abbau von C8K sowie durch Umsetzung von Graphit mit Kalium und Rubidium konnten weitere Alkaligraphitverbindungen mit Alkalischichten in nur jeder 3., 4. oder 5. basisparallelen Schichtlücke des Graphitgitters erhalten werden. Die Zusammensetzung der 2. Stufe  -  bisher als C16Me formuliert  -  entspricht C24Me, die der folgenden Stufen im Idealfall C36Me, C48Me, C60Me.Bei allen Stufen haben die den Alkalischichten benachbarten Kohlenstoffschichten identische Lagen übereinander, während die anderen C-Ebenen wie im Graphit zueinander orientiert sind. Für die 1. Stufe, C8Me, wird ein neuer Strukturvorschlag entwickelt.Magnetische Messungen geben für die 1.-5. Stufe einen schwachen Paramagnetismus.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Publication Date: 2007-04-01
    Print ISSN: 0038-0717
    Electronic ISSN: 1879-3428
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Elsevier
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  • 8
    Publication Date: 2006-07-01
    Print ISSN: 1067-4136
    Electronic ISSN: 1608-3334
    Topics: Biology
    Published by Springer
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  • 9
    Publication Date: 2005-08-10
    Print ISSN: 0029-8549
    Electronic ISSN: 1432-1939
    Topics: Biology
    Published by Springer
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  • 10
    Publication Date: 2006-04-01
    Print ISSN: 0829-318X
    Electronic ISSN: 1758-4469
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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