Buscar
Mostrando ítems 1-10 de 1325
Assessment of variations in dissolved organic matter in contrasting streams in the Pampas and Patagonian regions (Argentina)
(Csiro Publishing, 2018-09)
Dissolved organic matter (DOM) is the major source of carbon in aquatic environments and may be derived from allochthonous or autochthonous sources. This study presents the first DOM characterisation in streams from two ...
Characterization of the dissolved organic matter present in the water of the Bío-Bío river, VIII Region of Chile
(Sociedad Chilena Química, 2016)
The dissolved organic matter in rivers has different origin and its composition can vary both by natural conditions and the anthropic activity that takes place near rivers. This mobile fraction of the organic matter is ...
Characterization of the dissolved organic matter present in the water of the Bío-Bío River, VIII region of Chile
(Sociedad Chilena de Quimica, 2016)
© 2016, Sociedad Chilena de Quimica. All rights reserved. The dissolved organic matter in rivers has different origin and its composition can vary both by natural conditions and the anthropic activity that takes place near ...
Dissolved Organic Carbon and Nitrogen in Andisol for Six Crop Rotations with Different Soil Management Intensity
(Instituto de Investigaciones Agropecuarias, INIA, 2009)
Copper(II) and Nickel (II) Complexation Capacity of Dissolved Organic Matter from Rivers of Agricultural and Urban Areas in the State of Sao Paulo
(Soc Brasileira Quimica, 2013-11-01)
This study had as main objective to determine the complexing ability of the Organic Matter (OM) from typical agricultural areas and from urban areas with copper and nickel ions. The samples were collected during the dry ...
Characterization of Dissolved Organic Matter in River Water by Conventional Methods and Direct Sample Analysis-Time of Flight-Mass Spectrometry
(Hindawai, 2016)
The dissolved organic matter in surface waters is composed of fractions of different molecular weight and polarity, characteristics that determine their capacity for complexing different types of pollutants and their ...
Acidity and Aluminum Speciation as Affected by Surface Liming in Tropical No-Till Soils
(SOIL SCI SOC AMER, 2010)
Aluminum toxicity is one of the major soil factors limiting root growth in acidic soils. Because of the increase in organic matter content in the upper few centimeters of soils under no-till systems (NTS), most Al in soil ...
Turbidity and dissolved organic matter as significant predictors of spatio-temporal dynamics of phosphorus in a large river-floodplain system
(John Wiley & Sons Ltd, 2018-09)
Phosphorus (P) inputs are increasing in river‐floodplain systems, but the factors whichinfluence the dynamics of this nutrient are not clear. To assess P dynamics in this kindof river, the main channel of the Middle Paraná ...