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Within an expeditionary study, conducted in the south-eastern part of the Romanian Plain and central and southern Dobrogea, soil samples (0-20 cm) under the maize during the growing phase of 4-7 pairs of leaves, have been collected. The investigation methodology included three methods: determining the soil content of mobile Zn, soluble in CH3COONH4-EDTA solution at pH 7, calculating the values of the reaction-mobile phosphates index (RMPI) and of the zinc deficiency index (ZnDI), in order to establish the probabil...

This paper aims to identify the degree of resistance of cryogenic soils exposed to chemical contamination from the Nurbinsky extractive plant in Western Yakutia. It examines the resistance basing on the sorption capacity of soil material, and also assesses their ecological and geochemical state. In this paper we consider homogeneous suprapermafrost-gley, gley podzolized and homogeneous non-gley types of cryozemes. A total of 16 full-profile soil cuts and 185 small trenches were made in depth of 0-10 cm and 10-20 c...

This study reports the assessment of the pollution to urban soil pollution in few major cities of Romania. In the past few years, in all over Romania an increasing trend could be noticed related to the scientific interest for soil contamination due to anthropogenic activities. Nevertheless, a research aiming to assess a quality screening report related to the presence of contaminants in top soils of urban areas due has never been conducted and the public society is deprived of such information in all cities. The a...

A detailed analysis of a soil chronosequence located in well drained upland positions within broadleaf subzone of the Russian plain was performed to investigate the possible transformation of pedogenic pathways related to the climatic changes during the Late Holocene. The soil chronosequence included a soil buried under fortification (earthen) wall constructed in Early Iron Age and a day surface soil developing under natural (broadleaf forest) vegetation. Different pedogenic processes were evaluated using a number...

This article is devoted to the assessment of toxic effect of benzo[a]pyrene (BaP) on spring barley (Hordeum sativum distichum) grown in background control Haplic chernozem and that spiked with various doses of BaP (20, 200, 400 and 800 ?g/kg) equivalent to 1, 10, 20 and 40 levels of maximal permissible concentrations (MPC). The experimental soil samples were planted every spring and incubated outdoor during 4 years. During the experimental time (almost 4 years), concentrations of BaP decreased by 80-87% in the soi...

The paper presents a description of materials and available data as well as research methods which permitted the development of a complex data base allowing for the analysis of the spatial variability of soil properties in Poland. A data base was developed for the Czermin commune with the application of data on soils available in the State Surveying and Cartographic Resource database. Field and laboratory research were carried out, as well as spatial analyses. They provided the basis for the preparation of a map o...

Carrot culture is highly dependent on soil, silty-clay or silty soils with high permeability and free of weeds are preferred. Weed control is a very important part of the production technology for plants. Chemical weed control has been found to have some advantages of which we mention: it is less labor-intensive, increases productivity, reduces the number of passes on farmland and increases production. The main purpose of this paper was to provide the most efficient solution for weeds control in carrot crops, usin...

The soils in the study area Zemianske Kostolany were polluted with fly ash material after dam failure of the coal-ash pond (1965). Fly ash represents possible source of potentially toxic elements, because meteoric water or groundwater may percolate through and interact with the ash materials in soils, producing leachates that contain elevated levels of trace elements, in our case, arsenic. The main objective of this study was to assess the potential of arsenic releas e into the environment. Amount of released arse...

Organic contaminants such as total pe troleum hydrocarbons, including aliphatic hydrocarbons, polycyclic aromatic hydrocarbon s and BTEX are recognized as one of the predominant pollutants within Romanian contaminated sites. This study presents a set of experiments for the remediation of a soil contaminated accidentally with petroleum products conducted in slurry-type batch systems, designed to establish the best remediation approach. The experime ntal variants consisted in biological remediation (natural attenuat...

The research regarding the soil pollution with fluorine has been realized on the lands near the Aluminium Factory from Slatina (S .C. ALRO S.A.). Two soil profiles (0-120 cm.), as well as several agrochemical proofs (0–20 cm.) from the area that has been the most affected by pollution have been analys ed (Picture 1). Fluor ine accumulations in soil occur depending on the emissions intensity , the atmosphere status (the prevalent direction of air stream s, the frequency and the quantity of the rain-fall), the dis...

Repeated application of phosphorus (P) fert ilizer in soils, in excess of crop removal rates, may increase the concentration of P in soil solution and conse quently the transfer of soluble P to streams. Excess P in natura l aquatic systems can promote eutrophication of lakes and rivers. The application of calcareous sorbent in the adsorptive removal of P from soil solution could be a suitable technique. The objective of the experiment is to evaluate the sorption of P in a marginal coarse-textured soil (pH 5.5) ame...

The phytoavailability of aluminum (Al) in Al-ri ch acid podzolic soils is of particular concern in many Quebec agricultural areas due to its toxic effect on plant growth. Liming materials may mitigate Al phytoavaila bility and toxicity depending on Al pool and plant part, respectively. Our objective was to determ ine the effect of dolomitic limestone on the distribution of Al species in soil and to evaluate the uptake and distribution of Al in the different parts of maize ( Zea mays L.). Maize was grown in 40- cm ...

The research of restoration applicability of dump rocks started about 25 years ago. However, the complex geological, pedological and hydrogeological evaluation and the evaluation of zoocoenoses of dump areas has not been elaborated yet. It is the main topic of grant project started in 2009. Main results of this research are shown in this paper. Main attention is focused to the comparison between restorated areas and areas retained for natural succession in North Western Bohemia.

Wind erosion of soil from exposed areas in mining sites is one of the sources for dust generation. Particle size distribution a nd mineralogical composition of source soil, erodible fraction of surface soil, moisture, as well as organic matter content are important factors that determine the property of particulate generation process. In this research four soil samples were taken using shovel at different depth from the edge of the pit and the surface area nearby the pit in Malmberget mine in Sweden. Soil samples ...

In this study, the geotechnical properties of the 2nd Organized Industrial Region clays were investigated and the settlement analysis was made with Plaxis software. First of all, the geotechnical properties of the disturbed and undisturbed specimens taken from the 2nd Organized Industrial Region and its surroundings were determined with laboratory and field (SPT) tests accordi ng to criterion defined in TS 1900. For this purpose, there were drilled 18 bore wells with 40 m depth. The para meters that would be used ...

In this study, geotechnical and mineralogical characteristics of 2nd Organized Industrial Region existing inside the boundaries of Konya Selçuklu Municipality were investigated with comprehensive field and laboratory tests. Th e investigation area formed with soft clay soils with gypsum consists of central-lake sediments. The strength and the compressibility characteristics of th e soil were defined w ith some correlations obtained by the laboratory and field test results. This aim, undisturbed and disturbed soil...