Accumulation of heavy metals in agricultural soils of Mediterranean: Insights from Argolida basin, Peloponnese, Greece

Kelepertzis, Efstratios

doi:10.1016/j.geoderma.2014.01.007

Cited by 373 publications

(159 citation statements)

References 54 publications

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“…Heavy Metals (Cd, Cr, Cu, Zn, Mn, Pd, and Al) Although, with no statistical significance, the registered variations on Chromium, Cadmium, Copper, Nickel and Lead demonstrate an increasing tendency during the first three years of the assay, after which they decrease and stabilize. These changes in heavy metals content are in line with the consulted literature [23,40,[62][63][64][65]. Furthermore, the obtained results (low levels of heavy metals recorded and non-significant evolution of this parameter over time) were along with the expectations, considering both the characteristics of the study area (a natural landscape free of pollution incidents, with very low levels of industrialization), and the implemented cultural system in which the amount of fertilizers and phytosanitaries applied is very low [29,54].…”

Section: "Available" Phosphorus and Potassiumsupporting

confidence: 89%

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Effects of the European Union Agricultural and Environmental Policies in the Sustainability of Most Common Mediterranean Soils

et al. 2017

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Agro-environmental measures promoted by the European Union focus mainly on environmental protection by maintaining sustainable levels of productivity that are adequate to the agro-ecological conditions of each region on different Member States. Among these European Union promoted measures the one known as “Extensive Forage Systems” is particularly relevant for the Mediterranean Region. In order to analyze the impact of this measure and to verify if the high expenditure of communitarian funds, with its implementation in Mediterranean soils, is aligned with the predicted benefits, a seven-year study in a southern Portugal region was conducted. In this regard, several soil chemical parameters such as organic matter, pH, electrical conductivity, “available” phosphorus, “available” potassium and heavy metal levels (Cd, Cr, Cu, Zn, Mn, Pb and Ni), were assessed, in 1329 different plots in order to represent some of the existing diversity of the Mediterranean environment, identified by the Portuguese Parcel Identification System, and considering the possibility to evaluate the evolution of these parameters on the main soil types of the region. The obtained results enabled us to verify that the application of the agro-environmental measure “Extensive Forage Systems” did not lead, during the 7 years of the study, to any significant change in terms of organic matter, soil pH and/or heavy metals content. Still it contributed for a small growth on “available” phosphorus and potassium levels and to a significant increase on Soil electrical conductivity (EC). As a final conclusion we can refer that the application of the agro-environmental measure “Extensive Forage Systems”, in soil, clime and cultural conditions prevailing in this study (Typical Mediterranean conditions from the South of Europe), did not reach its main objective, which was to increase the organic matter content in soils.

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Section: "Available" Phosphorus and Potassiumsupporting

confidence: 89%

“…On the other hand, it is commonly accepted that different soil types behave in diverse ways regarding the evolution of their chemical parameters [39,40]. While there are soils with greater power to oppose changes in their chemical composition, there are others very sensitive to these changes [29,30].…”

Section: Introductionmentioning

confidence: 99%

Effects of the European Union Agricultural and Environmental Policies in the Sustainability of Most Common Mediterranean Soils

et al. 2017

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“…As such, phosphate fertilizer has been considered an important source of heavy metal contamination in many parts of the world (Micó et al 2006, Sun et al 2013, Kelepertzis 2014. Increased Cd content due to phosphate fertilizer in muskmelon crops was reported by Mendes et al (2006).…”

Section: Teores De Metais Pesados Em Latossolos Cultivados Com Olerícmentioning

confidence: 99%

Heavy metal contents in Latosols cultivated with vegetable crops1

Silva

Galindo

Nascimento

et al. 2016

Pesqui. Agropecu. Trop.

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Heavy metals are naturally found in soils, but their levels may increase as a result of anthropogenic actions. This study aimed at determining the concentrations of Cd, Cu, Mn, Ni, Pb and Zn in Yellow Latosol from vegetable crops areas, as well as the influence of the cultivation and position in the landscape on the accumulation of these elements. Soil samples were collected from five farming areas and four areas with natural vegetation, which served as a reference. Soil was collected along the planting rows from three transect positions (upper, middle and lower sections of the slope), as well as from the upper portion of forest areas, at three depths (0.0-0.10 m, 0.10-0.30 m and 0.30-0.60 m). The results from the chemical analyses indicated that Cd, Cu, Mn, Pb and Zn levels in the soil increased as a result of cultivation. Only Cd and Cu concentrations were above the quality reference values for the Pernambuco State. The multivariate analysis techniques used were efficient at separating the environments and at differentiating the origin of the metals. Soils from forest areas were clearly separated from croplands, demonstrating the effect of agricultural practices on the metal contents in the soils. The principal component analysis indicated a predominantly anthropogenic origin (phosphate fertilizing) for Cd, in more superficial soil samples.

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“…That indicates that these metals had similar sources (Nagarajan et al, 2010). Mn, Zn and Cr also had a significant relationship with AP, and their contents could increase with the prolonged application of organic and mineral fertilisers (Kong et al, 2006;Fan et al, 2005;Lu et al, 2012) and pesticides-fungicides (Kelepertzis 2014). Potential problems could arise following additions of metals considered harmful for agriculture, such as soil contamination and plant toxicity (Cheng et al, 2012;Manna et al, 2007;Cai et al, 2012).…”

Section: Discussionmentioning

confidence: 95%

Spatial variation of soil quality and pollution assessment of heavy metals in cultivated soils of Henan Province, China

Cheng

Guo

Wang

et al. 2014

Chemical Speciation & Bioavailability

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Eight chemical and physical characteristics and seven biological properties of the soils from five cultivated areas in the Henan Province were quantified. Concentrations of Cu, Cr, Zn and Mn were determined using the flame atomic absorption spectrometry. In addition available phosphorus, chloride, soluble salt and pH were measured. The activities of enzymes were determined by a literature method. The results showed that the concentrations of Mn, Zn and Cr had close relationships with that of available phosphorus, and their concentrations increased with the prolonged application of organic and mineral fertilisers and pesticides-fungicides. The activities of cellulase have a relationship to the concentrations of Zn and Mn at 0.95 levels respectively, Zn and Mn stimulate many enzyme activities. The relationship between protease and available phosphorus was nearly distinctive at 0.95 levels, relating with the use of nitrogen fertiliser in the farmlands. Local organic manures and urea fertilisers did not change the soil characteristics to a great extent. However, the soils showed moderate and moderate-to-strong contamination by Mn and Zn in the study areas. Wastewater and groundwater irrigation, pesticidesfungicides, and fertiliser may be responsible for the elevated concentrations of Zn and Mn in the soil samples.

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Accumulation of heavy metals in agricultural soils of Mediterranean: Insights from Argolida basin, Peloponnese, Greece

Cited by 373 publications

References 54 publications

Effects of the European Union Agricultural and Environmental Policies in the Sustainability of Most Common Mediterranean Soils

Effects of the European Union Agricultural and Environmental Policies in the Sustainability of Most Common Mediterranean Soils

Heavy metal contents in Latosols cultivated with vegetable crops1

Spatial variation of soil quality and pollution assessment of heavy metals in cultivated soils of Henan Province, China

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