Titlebook: Aquatic Humic Substances; Ecology and Biogeoch Dag O. Hessen,Lars J. Tranvik Book 1998 Springer-Verlag Berlin Heidelberg 1998 Humus.Kohlens

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https://doi.org/10.1007/978-3-663-04824-4thetically active radiation (PAR) (400–750 nm). Furthermore, as noted in other chapters, dissolved organic carbon (DOC) compounds compete for photons of visable light with the phytoplankton, which lowers areal primary production in humic waters.

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Book 1998 ecosystems and also constitute a major problem in the drinking water supply..This volume covers all aspects of aquatic humic substances, from their origin and chemical properties, their effects on light and nutrient regimes and biogeochemical cycling, to their role regarding organisms, productivity

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https://doi.org/10.1007/978-3-663-04824-4 aquatic humic substances (Choudhry 1981; Zepp 1988; Hoigné et al. 1989; Miller 1994) and the photochemical generation of reactive species (Cooper et al. 1989; Blough and Zepp 1995). A wealth of information is found in these papers and the reader is referred to them for additional discussions and references to topics not thoroughly covered here.

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,Flie?barkeit und Zustandsdiagramm,e properties (Perdue, this Vol.).Yet some basic features can be identified; the most obvious would be the presence of chromophores, typically giving from yellow to reddish or brownish colour owing to a pronounced light absorption in the UV, blue and green parts of the spectrum.

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Effects of UV Radiation on Aquatic Humus: Photochemical Principles and Experimental Considerations aquatic humic substances (Choudhry 1981; Zepp 1988; Hoigné et al. 1989; Miller 1994) and the photochemical generation of reactive species (Cooper et al. 1989; Blough and Zepp 1995). A wealth of information is found in these papers and the reader is referred to them for additional discussions and references to topics not thoroughly covered here.

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Aquatic Humic Matter: from Molecular Structure to Ecosystem Stabilitye properties (Perdue, this Vol.).Yet some basic features can be identified; the most obvious would be the presence of chromophores, typically giving from yellow to reddish or brownish colour owing to a pronounced light absorption in the UV, blue and green parts of the spectrum.

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