Kadriye Taşpınar, Halil Aytop, Özgür Ateş, Memet Varol, Gülser Yalçın, Fatih Kızılaslan, Hasan Çakıllı, Serdar Toprak
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引用次数: 0
Abstract
Zinc concentration in soils can cause both nutritional deficiency and toxicity in plants. Therefore, both the concentration and availability of Zn, especially in semiarid soils, are critical for agriculture and the environment. This study was carried out to determine the relationship between Zn concentrations and some soil properties in semiarid agricultural areas of Türkiye and to create spatial distribution maps. For this purpose, 1529 surface soil samples (0-30 cm) were taken from the 8687 km2 study area and organic matter (OM), calcium carbonate (CaCO3), pH, available phosphorus (AP), available Zn (AZn) and total Zn (TZn) analyses were carried out. In addition, the Zn availability ratio (Zn-AR) was calculated by the ratio of AZn to TZn concentration. The results indicated that AZn and TZn had high coefficients of variation (> 45%) due to the high heterogeneity of agricultural soils in the study area. Total Zn concentration ranged from 11.74 to 276.45 mg kg-1 and only 11.8% of the soil samples for TZn were found to exceed the upper continental crust value (67 mg kg-1), indicating low Zn accumulation in the study area. Similarly, none of the samples for TZn exceeded the maximum permissible concentration in soils. However, AZn deficiency was determined in 55% of the samples. Correlation analysis showed that AZn had significant positive correlations with TZn, AP and OM (p < 0.01). Spatial distribution maps showed that there were some differences in distribution trends of TZn and AZn concentrations. Total Zn concentrations were higher in the northern and northwestern regions of the study area, while AZn concentrations were higher in the western region. The zinc availability ratio (Zn-AR) showed higher values in the western and southeastern regions of the study area. Soil properties influencing the spatial distribution of Zn availability were AZn, AP and OM.
期刊介绍：
Environmental Geochemistry and Health publishes original research papers and review papers across the broad field of environmental geochemistry. Environmental geochemistry and health establishes and explains links between the natural or disturbed chemical composition of the earth’s surface and the health of plants, animals and people.
Beneficial elements regulate or promote enzymatic and hormonal activity whereas other elements may be toxic. Bedrock geochemistry controls the composition of soil and hence that of water and vegetation. Environmental issues, such as pollution, arising from the extraction and use of mineral resources, are discussed. The effects of contaminants introduced into the earth’s geochemical systems are examined. Geochemical surveys of soil, water and plants show how major and trace elements are distributed geographically. Associated epidemiological studies reveal the possibility of causal links between the natural or disturbed geochemical environment and disease. Experimental research illuminates the nature or consequences of natural or disturbed geochemical processes.
The journal particularly welcomes novel research linking environmental geochemistry and health issues on such topics as: heavy metals (including mercury), persistent organic pollutants (POPs), and mixed chemicals emitted through human activities, such as uncontrolled recycling of electronic-waste; waste recycling; surface-atmospheric interaction processes (natural and anthropogenic emissions, vertical transport, deposition, and physical-chemical interaction) of gases and aerosols; phytoremediation/restoration of contaminated sites; food contamination and safety; environmental effects of medicines; effects and toxicity of mixed pollutants; speciation of heavy metals/metalloids; effects of mining; disturbed geochemistry from human behavior, natural or man-made hazards; particle and nanoparticle toxicology; risk and the vulnerability of populations, etc.
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