Results 11 to 20 of about 40,309 (296)
Sorption and Fractionation of Dissolved Organic Matter and Associated Phosphorus in Agricultural Soil [PDF]
Journal of Environmental Quality, 2007 AbstractMobility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from soils to surface waters. To study the sorption and mobility of dissolved organic C and P (DOC, DOP) in soil, the pH‐dependent sorption of DOM to samples from Ap, EB, and Bt horizons from a Danish agricultural Humic Hapludult was ...
Gjettermann, Birgitte +4 more
openaire +4 more sources
Bioavailable dissolved organic phosphorus and phosphorus use by heterotrophic bacteria [PDF]
Aquatic Biology, 2007 Dissolved organic phosphorus (DOP) concentrations were measured in surface water at 3 stations in the central Baltic Sea from May to July 2005. The amount of bioavailable DOP (BAP) was estimated in time course experiments using 0.8 µm filtered seawater and carbon plus nitrogen addi- tions with the aim of verifying results obtained in 2004.
M Nausch, G Nausch
openaire +1 more source
The composition of organic phosphorus in a river during the springtime irrigation period
Journal of Hydrology: Regional Studies, 2022 Study region: The study region was the Sakura River, a tributary of Lake Kasumigaura, Japan. Study focus: We asked whether particulate organic phosphorus (POP) contributed to the P cycle in rivers. Previous studies have focused on the interaction between
Ryuichiro Shinohara +2 more
doaj +1 more source
The importance of dissolved organic phosphorus to phosphorus uptake by limnetic plankton [PDF]
Limnology and Oceanography, 1992 The substrate [α‐32P]ATP was used to represent the available fraction of the dissolved phosphomonoester (PME) pool and to measure its rate of assimilation by freshwater plankton in systems of low phosphorus availability. We compared [32P]ATP uptake to inorganic 32PO43‒ uptake.
E. Bentzen, W. D. Taylor, E. S. Millard
openaire +1 more source
Concentrations and Uptake of Dissolved Organic Phosphorus Compounds in the Baltic Sea [PDF]
Frontiers in Marine Science, 2018 The dissolved organic phosphorus (DOP) pool in marine waters contains a variety of different compounds. Knowledge of the distribution and utilization of DOP by phyto- and bacterioplankton is limited, but critical to our understanding of the marine phosphorus cycle. In the Baltic Sea, detailed information about the composition of DOP and its turnover is
Monika Nausch +11 more
openaire +6 more sources
Nutrient removal in a slow-flowing constructed wetland treating aquaculture effluent
Aquaculture Environment Interactions, 2021 Danish model trout farms (MTFs) use stream-like constructed wetlands for effluent polishing, and the industry is keen to improve wetland removal efficiency.
J Dalsgaard, M von Ahnen, PB Pedersen
doaj +1 more source
Deep-water inflow event increases sedimentary phosphorus release on a multi-year scale [PDF]
Biogeosciences, 2021 Phosphorus fertilisation (eutrophication) is expanding oxygen depletion in coastal systems worldwide. Under low-oxygen bottom water conditions, phosphorus release from the sediment is elevated, which further stimulates primary production.
A. Hylén +7 more
doaj +1 more source
New insights on resource stoichiometry: assessing availability of carbon, nitrogen, and phosphorus to bacterioplankton [PDF]
Biogeosciences, 2017 Boreal lake and river ecosystems receive large quantities of organic nutrients and carbon (C) from their catchments. How bacterioplankton respond to these inputs is not well understood, in part because we base our understanding and predictions on total ...
A. R. A. Soares +7 more
doaj +1 more source
Frontiers in Marine Science, 2022 To determine the origins of dissolved organic carbon (DOC) in a bay of volcanic Jeju Island, where the discharge of fresh groundwater (FGW) is dominant, we measured fluorescent dissolved organic matter (FDOM) and implemented a parallel factor analysis ...
Jeonghyun Kim +3 more
doaj +1 more source
Dissolved organic phosphorus production in surface seawaters1 [PDF]
Limnology and Oceanography, 1987 This article is in Free Access Publication and may be downloaded using the “Download Full Text PDF” link at right.
K. Orrett, D. M. Karl
openaire +1 more source