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The relationships of erosion-induced displaced soil organic carbon (SOC) to discharged 210 Pb ex and 137 Cs in a hillslope forested area were investigated using runoff plots in three different forest types. A significant correlation was found between the displaced SOC and the radionuclides in each examined forest type. Compared with 137 Cs, however, the discharge of...
Total concentrations and pools of Pb in the surface layers of mountain soils in the Karkonosze National Park are presented and discussed in relation to site altitudes and soil properties. Soil samples were collected from a forest floor and from the depths of 0–10cm and 10–20cm in 372 monitoring sites situated in a forested zone of the Park. Particularly high concentrations of Pb (24–200mg∙kg −1...
A regional scale survey investigated accumulation of Cu and Zn in wheat and agricultural soil from the Yangtze River delta region, China. A total of 126 pairs of topsoil and wheat samples were collected to analyze Cu, Zn and relevant parameters. 7.9% and 21.4% of the wheat grain samples exceed Chinese maximum permitted concentrations of Cu and Zn in wheat grain (Cu: 10mgkg −1 , Zn: 50mgkg...
The European Union Site of Community Importance Pineta San Vitale (Ravenna, Italy) is located in a complex lagoon system nearby the Adriatic Sea. This area is affected by relevant environmental pressures related to subsidence, groundwater salinization and industrial contamination. The occurrence of rare earth elements (REE), and the characterization of processes that control their migration in the...
The interdependence between time domain induced polarization measurements at uncontaminated and artificially contaminated soil samples with diesel and biophysicochemical alterations caused by diesel degradation was investigated during 12months. The research was performed on a slightly alkaline soil, with high content of organic matter (148g/kg) and silty clay texture. Soil clay mineralogy was mainly...
Olive (Olea europea L.) production is very important economically for many Mediterranean countries as in North Algeria where the present study took place. Traditionally, olive groves are found in nutrient poor marginal lands with no irrigation and on high slopes. Though K deficiency can negatively impact olive production, it is seldom corrected through fertilizer application due to farmers' lack of...
An on-the-go optical soil sensor with 660nm red and 940nm near-infrared wavelengths with an electrical conductivity (EC) sensing unit were tested to estimate soil organic matter (SOM) and cation-exchange capacity (CEC) on 551ha on 15 fields in 6 U.S. states. For calibration between sensed data and lab-analyzed values, a multivariate linear regression (MLR) with leave-one-out cross validation was performed...
We describe a model to predict regolith thickness in a 128,000ha study area in the central Mt Lofty Ranges in South Australia. The term regolith encompasses soil (A and B horizons) and highly weathered bedrock (C horizon). The thickness of the regolith has a major control on water holding capacity for plant growth and movement of water through the landscape, and as such is important in hydropedological...
The distributions of total mercury (THg) and methyl mercury (MeHg) in soils and river water on the north slope of the Changbai Mountain were investigated in April and September, 2009. Concentrations of THg in soils ranged from 0.08 to 0.73mgkg −1 (dry weight), with an average of 0.24mgkg −1 . This average was much higher than the background value on the north slope of the Changbai...
Throughout the literature the problem of soil wettability is usually associated with hydrophobicity and water repellency. These phenomena occur, as a rule, in soils of high organic matter content. However, mineral soils, usually considered as well wettable, may markedly differ in wettability that may be particularly important for water transport in the unsaturated zone and for distribution of the...
The MicroResp™ method allows soil respiration and microbial community physiological profiles to be determined colorimetrically in microplates. This method, however, neglects CO 2 storage in the agar gel carrying the colorimetric indicator, and calcite dissolution associated with CO 2 -induced change in soil solution pH. Our objective was to improve the method by taking into account...
Sludge, a by-product of wastewater treatment processes, is an alternative to conventional means of disposal and increasingly applied to agricultural lands as a source of fertilizer. In the present work, sludge generated from food processing industry was applied to agricultural soil as a conditioner and its effect on physio-chemical properties of the soil and crop productivity were studied. The industrial...
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