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  • 1
    Electronic Resource
    Electronic Resource
    Change in N fractions during composting of wheat straw (1993)
    Springer
    Biology and fertility of soils 16 (1993), S. 269-274 
    Details
    ISSN: 1432-0789
    Keywords: Straw compost ; N fractions ; Amino acids ; Amino sugars ; Viable counts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The composting process found in real compost heaps was simulated in the laboratory with three treatments, nil, and urea, and cyanamide additions. Total N was separated into hydrolysable, amino acid, and amino sugar N. These fractions were related to counts of viable bacteria and spore-forming bacteria. The content of amino acid N and amino sugar N increased in all three treatments. The ratios of amino acid to amino sugar C and glucosamine to galactosamine decreased in all three treatments during composting of wheat straw. The increased contents of the N components were all significantly correlated with the number of spore-forming bacteria but not with viable bacterial counts. The closest correlation was found between spores and galactosamine. Amounts equivalent to 74% (urea treatment) or 48% (cyanamide treatment) of the added N were lost, mainly in the period after the maximum temperature was passed. The increased amounts of amino acid and amino sugar N accounted for 89% (urea treatment) and 68% (cyanamide treatment) of the added N remaining in compost.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00369303
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Soil protection strategies in Brandenburg —Management of waste recycling on devastated areas subject to recultivation (soil protection in recultivation areas) (1996)
    Springer
    Water, air & soil pollution 91 (1996), S. 59-78 
    Details
    ISSN: 1573-2932
    Keywords: Recultivation ; soil protection ; waste recycling ; soil functions ; nutrients ; soil pollution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The article reflects on considerations in theLand(Federal State) Brandenburg in the preliminary stages of aLand regulation on the recycling of wastes on devastated areas from the viewpoint of soil protection. Within the framework of a proposed recultivation, the benefit and harmlessness of recycling shall be examined. The benefits are derived from the preservation, improvement and restoration of soil functions without detrimental effects on other soil functions. In order to make full use of the benefits, a graduated, site-specific system for the main nutrients is presented. For pollutants, different approaches for limitation of the input are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00280923
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    Paper (German National Licenses)
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  • 3
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    Organic carbon in soils of Germany: Status quo and the need for new data to evaluate potentials and trends of soil carbon sequestration (2009)
    In:  Journal of Plant Nutrition and Soil Science
    Details
    Publication Date: 2020-02-12
    Keywords: 550 - Earth sciences
    Type: info:eu-repo/semantics/article
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  • 4
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    Mikroplastik-Analytik: Probenahme, Probenaufbereitung und Detektionsverfahren. Statuspapier im Rahmen des Forschungsschwerpunktes "Plastik in der Umwelt - Quellen, Senken, Lösungsansätze" (2020)
    Bundesministerium für Bildung und Forschung
    Details
    Publication Date: 2020-12-11
    Description: Das Statuspapier fasst die Inhalte der Verbundprojekt-übergreifenden Diskussionen und Abstimmungen innerhalb des Querschnittsthemas (QST) „Analytik und Referenzmaterialien“ des Forschungsschwerpunkts zusammen. Die vorliegende Fassung wurde aus dem Diskussionspapier (Link Dokument Stand Oktober 2018) entwickelt. Dieser kontinuierliche Entwicklungs- oder Erarbeitungsprozess wurde durch eine Reihe von Veranstaltungen organisatorisch untermauert: • 1. Workshop (21. März 2018, Karlsruhe) • 2. Workshop (4. Juli 2018, Augsburg) • Statuskonferenz (9.-10. April 2019, Berlin) • 3. Workshop (27. November 2019, Berlin). Folgende Verbundprojekte haben sich aktiv bei den Veranstaltungen eingebracht: EmiStop, ENSURE, MicBin, MicroCatch_Balt, MikroPlaTaS, PLASTRAT, PLAWES, RAU, REPLAWA, RUSEKU, SubµTrack und TextileMission, sowie Vorläuferprojekte (MiWa, BASEMAN). Die einzelnen Textbeiträge im vorliegenden Statuspapier wurden durch ein Kommentierungsverfahren innerhalb des QST „Analytik und Referenzmaterialien“ abgestimmt. Motivation dieses Statuspapiers ist es, die im Forschungsschwerpunkt „Plastik in der Umwelt“ verwendeten physikochemischen Untersuchungsverfahren zur Analytik von Mikroplastik (MP) zusammenzuführen. Dadurch sollen möglichst validierte Methoden und vergleichbare Ergebnisse in den verschiedenen Projekten für die jeweils spezifische Fragestellung erreicht werden – insbesondere für zukünftige Projekte. Am Ende soll ein möglichst einheitlicher Methodenpool für die relevanten Fragestellungen in Wissenschaft, Wirtschaft und Verwaltung zur Verfügung stehen. Die vorliegenden Verfahrensempfehlungen beruhen auf dem aktuellen Wissensstand zur Analytik von MP und richtet sich an Akteure in der Wissenschaft als auch Anwender in der Praxis. BMBF Forschungsschwerpunkt „Plastik in der Umwelt“ November 2020 Statuspapier Mikroplastikanalytik 7 Es werden keine Verfahrensempfehlungen zu Untersuchungen von Wirkungen von MP auf Umweltmedien, Pflanzen oder Tiere gegeben (Siehe QST „Ökotoxikologie“). Es stellt nicht einzelne Ergebnisse oder Daten dar, die im Rahmen des Forschungsschwerpunktes entstanden sind.
    Language: German
    Type: info:eu-repo/semantics/report
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  • 5
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    Unknown
    Boden (2021)
    In:  Taschenbuch der Wasserwirtschaft : Grundlagen – Maßnahmen – Planungen
    Details
    Publication Date: 2022-02-23
    Description: Dieses bereits seit 1958 bewährte und fortlaufend aktualisierte und überarbeitete Kompendium bietet eine konzentrierte Darstellung aller Fachgebiete der Wasserwirtschaft und des Wasserbaus. Der Bogen ist von den wasserwirtschaftlichen und wasserbaulichen Grundlagen über wasserbauliche Maßnahmen bis hin zu Altlasten und den Umgang mit wassergefährdenden Stoffen gespannt. Es ist zu einem treuen und unentbehrlichen Begleiter aller in der Wasserwirtschaft Berufstätigen geworden und stattet auch heute in kompakter und handlicher Form Studierende wie Ingenieure, Geo-, Forst- und Naturwissenschaftler mit den notwendigen und aktuellen Kenntnissen und den Zusammenhängen aus.
    Language: German
    Type: info:eu-repo/semantics/bookPart
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  • 6
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    Application of High-Resolution Near-Infrared Imaging Spectroscopy to Detect Microplastic Particles in Different Environmental Compartments (2023)
    In:  Water, Air and Soil Pollution
    Details
    Publication Date: 2024-02-12
    Description: Microplastic particles (MPP) occur in various environmental compartments all over the world. They have been frequently investigated in oceans, freshwaters, and sediments, but studying their distribution in space and time is somewhat limited by the time-consuming nature of the available accurate detection strategies. Here, we present an enhanced application of lab-based near-infrared imaging (NIR) spectroscopy to identify the total number of MPP, classify polymer types, and determine particle sizes while maintaining short measuring times. By adding a microscopic lens to the hyperspectral camera and a cross slide table to the setup, the overall detectable particle size has been decreased to 100 µm in diameter. To verify and highlight the capabilities of this enhanced, semi-automated detection strategy, it was applied to key areas of microplastic research, such as a lowland river, the adjacent groundwater wells, and marine beach sediments. Results showed mean microplastic concentrations of 0.65 MPP/L in the Havel River close to Berlin and 0.004 MPP/L in the adjacent groundwater. The majority of MPP detected in the river were PP and PE. In 8 out of 15 groundwater samples, no MPP was found. Considering only the samples with quantifiable MPP, then on average 0.01 MPP/L was present in the groundwater (98.5% removal during bank filtration). The most abundant polymers in groundwater were PE, followed by PVC, PET, and PS. Mean MPP concentrations at two beaches on the German Baltic Sea coast were 5.5~MPP/kg at the natural reserve Heiligensee and Hüttelmoor and 47.5 MPP/kg at the highly frequented Warnemünde beach.
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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