Titlebook: Dissolved Organic Matter in Lacustrine Ecosystems; Energy Source and Sy K. Salonen,T. Kairesalo,R. I. Jones Book 1992 Springer Science+Busi

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Enrage

Natural and man-caused factors affecting the abundance and cycling of dissolved organic substances ised a temporary decline in DOC concentrations in bog pools. Changes in DOC appear to affect the availability of mercury for methylation. Addition of aluminum to a small acidic lake caused a two-fold decline in DOC..Fertilization of Lake 227 caused a considerable increase in DOC, and in ratios of DOC

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Sources, concentrations and characteristics of organic matter in softwater lakes and streams of the nificant amounts of humic matter originating from coniferous forest soils or peatland in the catchment area. In most humic lakes with a water colour of ≥ 50 g Pt m., more than half of the organic carbon in the surface water is of allochthonous origin, and in polyhumic lakes ( > 200 g Pt m.) the prop

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导师

The influence of humic substances on lacustrine planktonic food chains that metabolism of allochthonous HS underpins much of the observed activity. Studies of bacterial abundance and growth in the presence of HS support the view that bacteria are the most significant utilisers of HS. This use is apparently facilitated by photolysis of HS, particularly by short wavelen

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Gossamer

Dissolved organic carbon in a humic lake: effects on bacterial production and respiration carbon-limited bacterial growth towards mineral-nutrient-limited growth. Thus the high community respiration and frequentCO.-supersaturation in humic lakes may be caused not only by the absolute supply of organic C, but also by the stoichiometry of the dissolved nutrient pool.

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