Results 201 to 210 of about 40,821 (249)
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Boundary-layers around bladed aquatic macrophytes
Hydrobiologia, 1997This paper describes a model of the diffusive boundary-layer around anaquatic macrophyte blade. Nutrient uptake at the base of the modelledboundary-layer was examined using previously published laboratory data. Theanalysis showed that, over the outer velocity range 0.01–0.16ms−1, nutrient uptake varied between that predicted byflat-plate boundary-layer
Craig L. Stevens, Catriona L. Hurd
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Photosynthetic carbon assimilation in aquatic macrophytes
Aquatic Botany, 1991Abstract In submerged aquatic macrophytes the relationship between net photosynthesis and carbon concentration in the water often follows a less gradual pattern than anticipated assuming simple Michaelis-Menten kinetics. This indicates that other factors than the activity of the carboxylation enzymes are important in the regulation of photosynthesis ...
Madsen, T.V., Sand-Jensen, Kaj
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Amino Acids in Aquatic Macrophytes
Zeitschrift für Pflanzenphysiologie, 1977Summary Ranunuculus aquatilis, Ranunclus fluitans, Elodea canadensis, Potamogeton pectinatus, Potamogeton natans and Zannichellia palustris were collected from homogenous populations in their natural environment. 1. Fewer amino acid components were detected than usually found in plants with the described automatic method. 2. The absolute
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Managing water quality with aquatic macrophytes
Reviews in Environmental Science and Bio/Technology, 2008The principal sources of water for human use are lakes, rivers, soil moisture and relatively shallow groundwater basins. Water quality in lakes and reservoirs is subjected to the natural degradation, processes of eutrophication and the impacts of human activities.
Jatin Srivastava +2 more
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Aquatic Macrophytes in White Lake, Michigan
Journal of the Environmental Engineering Division, 1977Samples of plants were analyzed for carbon, hydrogen, nitrogen, potassium, and phosphorus. The findings reveal that the areal extent of the macrophytes approaches one-fifth of the lake total surface area and the macrophyte biomass is equal in magnitude to the phytoplankton. The White Lake macrophyte community does not appear to be limited by phosphorus
Paul L. Freedman, Raymond P. Canale
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Factors Structuring Aquatic Macrophytes
2023Takudzwa C. Madzivanzira +2 more
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Ecology of aquatic macrophytes in Amazonia
1984Aquatic macrophytes, according to Weaver & Clements’ (1938) very general definition, are herbaceous plants growing in water, ‘in soil covered with water or in soil that is usually saturated’.
Junk, J., Howard-Williams, C.
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Improving regulatory risk assessment— using aquatic macrophytes
Integrated Environmental Assessment and Management, 2007Hanson, M.L., Arts, G.H.P.
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