نتایج جستجو برای: organic carbon content

تعداد نتایج: 840940  

Journal: :Environmental Modelling and Software 2008
Panos Panagos Marc Van Liedekerke Luca Montanarella Robert J. A. Jones

77 78 79 80 81 82 83 84 85 86 87 T E D P R Distributing geographic information via the Internet allows interoperability with similar information and real-time integration of data from around the world. The software developed allows the users to exchange, integrate, and analyze data in new ways. Users can combine various environmental indicators (organic carbon content) and information accessed ...

2015
Chunyan Wang Nianpeng He Jinjing Zhang Yuliang Lv Li Wang Dafeng Hui

Alteration of the composition of soil organic matter (SOM) in Inner Mongolian grassland soils associated with the duration of grazing exclusion (GE) has been considered an important index for evaluating the restoring effects of GE practice. By using five plots from a grassland succession series from free grazing to 31-year GE, we measured the content of soil organic carbon (SOC), humic acid car...

1999
Diederik Jacques Christophe Mouvet Binayak Mohanty Harry Vereecken Jan Feyen

The spatial variability of the K and n parameters of the Freundlich sorption isotherm for f atrazine and their correlation with soil textural variables, cation exchange capacity and organic carbon content were studied in a stagnic podzoluvisol. Ninety-three sample points were organized on an irregular three-dimensional grid to a depth of 3.2 m. A trend in the vertical direction explains, for mo...

2017
Constantini Samara

This article presents the distribution of the dithiothreitol-based (DTT) redox activity of water-soluble airborne particulate matter (PM) from two urban sites in the city of Thessaloniki, northern Greece in four size ranges (<0.49, 0.49–0.97, 0.97–3.0 and >3 μm). Seasonal and spatial variations are examined. The correlations of the mass-normalized DTT activity with the content of PM in water-so...

Ahmad Zare Javid, Azadeh Mirzaie, Behnam Moradi, Hossein Bahrani, Maryam Ravanbakhsh, Mokhtar Abbasi, Neamat Jaafarzadeh Haghighi Fard, Rahman Alivar Babadi,

Background: Composting as a waste management technology is becoming more widespread. The purpose of this study was to assess the feasibility and to find the most effective composting process for the ratio of green waste, digested and dewatered sludge from Chonibieh wastewater treatment plant in the west region of Ahvaz. Methods: The composting time was 23 days and the evaluated parameters in th...

2017
BASKAR

Sodic soils have low organic carbon content, microbial load and their activities which were the biological indicators of soil health. Soil organic carbon is the kay factor which derives the soil functions. A field experiment was conducted to study the effect of different amendments and micronutrient mixture on soil biological properties. Gypsum+GM, DSW (distillery spent wash) and GLM (Glyricidi...

2005
F.M.G. Tack E. Van Ranst

Baseline concentration levels of trace elements in the soils of Flanders (Belgium) were assessed as a function of clay and organic carbon contents. Outliers in the data were identified and rejected according to statistical criteria. Median trace element concentrations in mg/kg dry weight were As 7, Cd 0.18, Co 0.05, Cr 24.6, Cu 9.6, Hg 0.17, Ni 3.5, Pb 21.5, Zn 34.5. Clay and organic carbon con...

Journal: :Chemosphere 2007
Bo Pan Baoshan Xing Shu Tao Wenxin Liu Xiumei Lin Yang Xiao Hancheng Dai Xianming Zhang Yanxv Zhang Huishi Yuan

The sorption coefficient, K(OC), of phenanthrene (PHE) has been reported to vary with different types of organic matter, leading to uncertainties in predicting the environmental behavior of PHE. Among the studies that relate organic matter properties to their sorption characteristics, physical conformation of organic matter is often neglected. In this work, organic matter samples of different p...

Journal: :international journal of environmental research 2012
j. volmajer valh a. majcen le marechal b. križanec s. vajnhandl

the trend of sustainable use of available water resources encourages textile finishing enterprisesto implement efficient wastewater treatment technologies that enable water recycling, and not just it’sdischarging into the local wastewater treatment plants (wwtp). this paper presents the results obtainedfrom the h2o2/uv treatment of wastewater from slovene textile finishing company. laboratory s...

2007
D. Bastianelli

Added organic materials [1], composts and organic fertilisers are involved in building soil organic matter. They are a factor in soil property improvement, and can represent an important source of nutrients for both plants and soil organisms. Even a century ago [2], the composition of added organic materials was thought to have a direct influence on organic matter transformation. Intense work i...

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