THE HEAVY METALS ABUNDANCE IN SOILS FROM FĂGĂRAŞ DEPRESSION (Cd, Co, Cr, Cu)
Journal Title: Present Environment and Sustainable Development - Year 2012, Vol 6, Issue 2
Abstract
Făgăraş Depression soil cover consists of a mosaic of soils where are prevalent Protisols represented by Fluvisols (39.2%), Luvisols represented by Luvisols and Haplic Luvisols (38.8%), Cambisols represented by Distric Cambisols and Eutric Cambisols (12.5%) and Hydrisols represented by Gleysols, Stagnosols and Histosols (7.5%). Făgăraş Depression soils, predominantly acid, with low content of humus and total nitrogen and a poor supply with phosphorus and potassium mobile forms present total contents of Cd, Co, Cr and Cu lower than normal contents values in soils. This are around the average values existing in the world soils, except Cr, that has a lower average value with 34mg•kg-1 than the world soils average. Distribution of heavy metal content values is normal. Frequency histograms are symmetrical and platicurtice, except copper, that has a strong asymmetry of left and leptocurtice shaped curve. Abundance of Cd in Făgăraş Depression is upper the lithospheric and pedospheric abundance of this element, while Cr and Cu abundance is below of the two geogenic types of abundance. Co abundance is below the lithospheric abundance, but higher than pedospheric once. Area distribution of the four heavy metals showed zones with concentrations higher than normal background of the whole territory, but without exceeding normal levels. Inverse proportionally relationships between pH and heavy metal content, statistically assured for Cd and Co; direct proportionality relationship, statistically assured between Cd and humus on the one hand, and between total N and mobile potassium, on the other hand; direct proportionality, statistically assured between Cu and N total and finally, close relationships of direct proportionality, statistically assured between Cd, Co and Cr were established. Copper has shown direct correlation, statistically assured, only with chromium. Origin of heavy metals is predominantly geogenic, namely, the minerals and the crystalline rocks of the northern versant of the Făgăraş Mountains. Industrial units present in this area did not influence the content of heavy metals in soils of Făgăraş Depression territory.
Authors and Affiliations
Radu Lăcătuşu, Anca Rovena Lăcătuşu, Mihaela Lungu, Monica Mihaela Stanciu-Burileanu
Keywords
Related Articles
- EP ID EP116237
- DOI -
- Views 97
- Downloads 0
FUNDAMENTAL AND APPLIED IN THE GEOGRAPHIC RESEARCH ON THE ENVIRONMENT
To know the reality in a scientific manner (holistic at the beginning and then more and more specialized) has been and will ever be the effect of complex efforts, whose conceptual and material difficulties have never suc...
PREMISES FOR TOURISM DEVELOPMENT ON THE BISTRIŢA AURIE VALLEY
The Romanian rural space includes old boroughs that lost their function and importance and in many cases, the number of their inhabitants decreased too. In this period, many of them obtained the status of town. In the co...
STUDIES REGARDING THE SAFETY IN OPERATION OF EZER RESERVOIR
The dam of the non-permanent reservoir Ezer, located on Jijia river is an earth dam with a maximum height of 6.18 m, which provides a global retention to the canopy of 10.330 million cubic meters. The dam founded on weak...
CONCEPTUAL AND METHODOLOGICAL FRAMEWORK IN THE IMPLEMENTATION OF THE RESOURCECONSERVATIVE TECHNOLOGIES IN THE CARPATHO-DANUBIAN-PONTIC AREA
In agricultural regime react primarily the structure and apparent density of the soil.. These cause the soil porosity, therefore, pore space is a comprising index of physical change processes showing certain dependencies...
THE IMPACT OF HEAVY RAINFALL IN THE HYDROLOGICAL REGIME OF SUHA RIVER BASIN IN 2006
Recent climate changes mentioned in the Intergovernmental Panel for Climate Change (IPCC, 2013) report highlight the fact that in the past 50 years at the planetary level have occurred major changes in all climate compon...