Aquatic Humic Substances: Ecology and Biogeochemistry by Dag O. Hessen, Lars J. Tranvik (auth.), Prof. Dr. Dag O. PDF

By Dag O. Hessen, Lars J. Tranvik (auth.), Prof. Dr. Dag O. Hessen, Dr. Lars J. Tranvik (eds.)

ISBN-10: 3642083625

ISBN-13: 9783642083624

Humic elements ensue in all types of aquatic structures, yet are quite very important in northern, coniferous components. They strongly regulate the aquatic ecosystems and likewise represent a big challenge within the ingesting water supply.
This quantity covers all points of aquatic humic ingredients, from their foundation and chemical homes, their results on mild and nutrient regimes and biogeochemical biking, to their position concerning organisms, productiveness and nutrients net association from micro organism to fish. targeted emphasis is paid to carbon biking and nutrients internet association in humic lakes, yet elements of marine carbon biking on the topic of humus are taken care of as well.

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Additional info for Aquatic Humic Substances: Ecology and Biogeochemistry

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1996). The increasing concentration with depth indicates that the dissolved fulvic acid diffuses upward into the water column from the sediments. The chemical similarity of the fulvic acids in the two lakes suggests that their chemistry is primarily determined by a microbial/algal source, and possibly the similar lake history. Some differences between the lakes might have been expected to influence the chemistry of the fulvic acid by influencing the precursor materials and polymerization and solubilization processes in the proposed formation pathways.

1985). In the discussion presented here, we will compare humic substance production among aquatic ecosystems and discuss a few recent studies quantifying the production and transport of aquatic humus in a hydrologic context. Measurement of ol3C values can be used as an indicator of fulvic acid source (Schiff et al. 1990), requires only a small sample, and can be used to study the seasonal dynamics of fulvic acid production. 5%0 representative of terrestrially-derived organic material. 5%0 (Fig.

Limnol Oceanogr 35(8):1744-1756 Ranville jF, Harnish RA, McKnight DM (1991) Particulate and colloidal organic material in Pueblo Reservoir, Colorado: influence of autochthonous source on chemical composition. In: Baker RA (ed) Organic substances and sediment in water, vol 1. Lewis, Chelsea, Michigan, pp 47-73 Schiff SL, Aravena R, Trumbore SE, Dillon PI (1990) Dissolved organic carbon cycling in forested watersheds: a carbon isotope approach. Water Resour Res 26:2949-2957 Scully NM, Lean DRS (1994) The attenuation of ultraviolet light in temperate lakes.

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Aquatic Humic Substances: Ecology and Biogeochemistry by Dag O. Hessen, Lars J. Tranvik (auth.), Prof. Dr. Dag O. Hessen, Dr. Lars J. Tranvik (eds.)


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