Downward Movement of Potentially Toxic Elements in Biosolids Amended Soils
نویسندگان
چکیده
منابع مشابه
Phytoavailability of cadmium in long-term biosolids-amended soils.
Agronomic use of biosolids has raised concern that plant availability of biosolids-Cd will increase with time after cessation of biosolids application. It has been demonstrated that chemical extractability of Cd is persistently decreased in biosolids-amended soils. This study was conducted to determine if Cd phytoavailability in long-term biosolids-amended soils was also persistently decreased....
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MAMMALS and birds sometimes seek shelter or nesting sites in the ground. Many of them scarcely affect the soil as a medium for plant growth. A notable exception is the soil-dwelling rodents. Although their acreweight is usually only about a few pounds even in the uncultivated land, their soil transporting activities sometimes are considerable. In building their tunnels and nests, they transport...
متن کاملNitric oxide emissions from soils amended with municipal waste biosolids
Land spreading nitrogen-rich municipal waste biosolids (NO3 -No256mg Nkg 1 dry weight, NH3-NB23,080mg Nkg 1 dry weight, Total Kjeldahl NB41,700mg Nkg 1 dry weight) to human food and non-food chain land is a practice followed throughout the US. This practice may lead to the recovery and utilization of the nitrogen by vegetation, but it may also lead to emissions of biogenic nitric oxide (NO), wh...
متن کاملEvaluation of Potentially Toxic Elements Pollution Indices in Rangeland Northwest of Chadegan city (Isfahan Province)
Abstract Today, the pollution of Rangeland soils by various destructive pollutants has become one of the human-environmental problems. Lacking proper management of organic matter discharge can also increase the concentration of salts, heavy metals, and pathogenic microorganisms. In this study, to investigate and measure the concentration of toxic elements, 128 soil samples of Chadegan region w...
متن کاملChemical speciation and extractability of Zn, Cu and Cd in two contrasting biosolids-amended clay soils.
An incubation experiment was conducted to study the chemical speciation and extractability of three heavy metals in two contrasting biosolids-amended clay soils. One was a paddy soil of pH 7.8 and the other was a red soil of pH 4.7 collected from a fallow field. Anaerobically digested biosolids were mixed with each of the two soils at three rates: 20, 40 and 60 g kg(-1) soil (DM basis), and una...
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ژورنال
عنوان ژورنال: Applied and Environmental Soil Science
سال: 2012
ISSN: 1687-7667,1687-7675
DOI: 10.1155/2012/145724