Chemical fractionation and phytoextraction capacity of maize plant grown on chromated copper arsenate soil
© Aristotle University of Thessaloniki (6/2009)
A pot experiment was performed to study the single and sequential extraction of As, Cr and Cu in chromated copper arsenate (CCA) contaminated soil and the potential of maize (Zea mays) for the removal of the metals from the CCA contaminated soil.

The influence of soil – plant factors on the uptake of Cs by two plant species
© Aristotle University of Thessaloniki (6/2009)
To investigate Cs uptake by two different plant species grown on soils with contrasting physicochemical properties, a greenhouse pot experiment was conducted. Soil in each pot contaminated with 40 ug g-1 of Cs in the form of CsCl by spraying the solution in layers. After an equilibration period of two months, the soil of each pot appropriately sowed with seeds of Lolium perenne and Trifolium pratense plants.

The influence of soil to solution ratio on cadmium removal from soils using anionic surfactants
© Aristotle University of Thessaloniki (6/2009)
The effectiveness of cadmium removal from soils by two anionic surfactants at different soil/solution ratio (m/V) was investigated. At critical micelle concentration (CMC) Rosulfan L reduced surface tension of water more sufficiently than ABS Na/S. In soil/surfactant systems CMC values clearly increased in comparison with fresh solutions, indicating surfactants sorption.

Application of computer modelling for forecasting of contaminants distribution in soil
© Aristotle University of Thessaloniki (6/2009)
An outlook of various methods of computer modeling application for the analysis and forecasting of contaminants migration in the soil is being discussed. A new mathematical model of contaminants transport in near-surface soil layer under non-isothermal conditions is being proposed. The given model takes into account the soil moisture content change effecting the solute transport and sorption owing to evaporation processes and recondensation of water vapor. The article also covers the possibility of hybrid expert systems (HES) application for solving contaminants migration in the soil. Distinguish structure of HES that includes models hybridization is being proposed. On the basis of given methods and models a new software has been developed.

Soil carbon sequestration affected by cultivation of poor pastures in arid regions of Central Iran
© Aristotle University of Thessaloniki (6/2009)
Soil carbon sequestration through changes in land use and management is one of the important strategies to mitigate the global greenhouse effect. This study was conducted to estimate the rate of soils carbon sequestration in land use changes from poor pastures (PP) to wheat fields (WF) and poor pastures to alfalfa fields (AF) occurring in Abarkooh plain, Central Iran.

Lead fractionation in soil as affected by organic and inorganic amendments
© Aristotle University of Thessaloniki (6/2009)
The Pb fractionation in the sewage sludge and cow manure before and after removal of organic carbon, reducible Fe, iron oxide and Pb(NO3)2 salt was determined by a sequential extraction method. Despite cow manure and sewage sludge had high level of organic carbon (54 and 31%, respectively), most of the Pb in these amendments was found in the inorganic (oxide) fraction.

Analysis of the regional-scale influence of agricultural ecosystem parameters on zinc concentrations of soil and rice grains using regression methods
© Aristotle University of Thessaloniki (6/2009)
We investigated the influence of various metrical and categorical parameters characterizing soil, climate, parent material, physiography and agricultural management on soil and rice grain Zn concentrations in two provinces of Central Iran. Total soil Zn was found to be a function of parent material, physiographic unit, crop rotation system, total soil P concentration and soil clay content. Except for soil CaCO3 and OC the parameters considered in our analysis, however, had no strong effect on grain Zn concentrations. The analysis showed that generally available information such as basic soil properties, parent material and crop rotation system can be very helpful in predicting the Zn status of agricultural soils on a regional scale, while it helped much less in predicting grain Zn concentrations in rice.

The FOOTPRINT software tools: Pesticide risk assessment and management in the EU at different spatial scales
© Aristotle University of Thessaloniki (6/2009)
In the EU-project FOOTPRINT three pesticide risk assessment and management tools were developed, for use at different spatial scales. The three FOOTPRINT tools share the same underlying science, based on the consistent identification of environmental characteristics driving the fate of agriculturally applied pesticides and their interpretation to parameterise state of the art modelling applications thus providing an integrated solution to pesticide risk assessment and management in the EU.

Physiological responses of rosemary (Rosmarinus officinalis L.) to salinity and copper nutrition in a nutrient solution
© Aristotle University of Thessaloniki (6/2009)
Salinity and copper deficiency are two factors that inhibit plant growth. This study was conducted to investigate individual and combined effects of salinity and copper nutrition on growth, leaf relative water content and nutrient uptake of rosemary (Rosmarinus officinalis L.).

Land degradation of Taleghan drainage basin, Iran from saline and alkaline marl formations
© Aristotle University of Thessaloniki (6/2009)
In Iran fine – grained, saline, alkaline and erodible Tertiary marly formations are exposed in many geological zones and play important role in the formation of present landforms. They also play important role in degradation of water resources and soils as diffuse sources.

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