Arid
DOI10.1007/s13762-013-0350-9
Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices
Srinivasarao, Ch1; Gayatri, S. Rama2; Venkateswarlu, B.1; Jakkula, V. S.1; Wani, S. P.2; Kundu, S.1; Sahrawat, K. L.2; Rao, B. K. Rajasekhara3; Marimuthu, S.4; Krishna, G. Gopala1
通讯作者Srinivasarao, Ch
来源期刊INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
ISSN1735-1472
EISSN1735-2630
出版年2014
卷号11期号:7页码:1959-1972
英文摘要

Heavy metals are governed by parent material of soils and influenced by the soil physicochemical properties and soil and crop management practices. This paper evaluates total heavy metal concentrations in rainfed soils under diverse management practices of tropical India. Vertisols (clayey soils with high shrink/swell capacity) had the highest concentrations of heavy metals. However, chromium (Cr) content was above the threshold value in Aridisol [calcium carbonate (CaCO3)]-containing soils of the arid environments with subsurface horizon development. Concentration increased at lower depths (> 30 cm). Basaltic soils showed higher concentrations of nickel (Ni), copper (Cu) and manganese (Mn). Cadmium (Cd), cobalt (Co), Cu and Mn concentrations were higher in soils cultivated to cotton, whereas Cr concentration was above the threshold level of 110 mg kg(-1) in food crop cultivated soils. As the specific soil surface is closely related to clay content and clay type, soil’s ability to retain heavy metals is more closely tied to the specific surface than to the soil cation exchange capacity. Higher positive correlations were found between heavy metal concentrations and clay content [Cd(r = 0.85; p a parts per thousand currency sign 0.01); Co (r = 0.88; p a parts per thousand currency sign 0.05); Ni (r = 0.87; p a parts per thousand currency sign 0.01); Co (r = 0.81; p a parts per thousand currency sign 0.05); Zn (r = 0.49; p a parts per thousand currency sign 0.01); Cr (r = 0.80; p a parts per thousand currency sign 0.05); Mn (r = 0.79; p a parts per thousand currency sign 0.01)]. The amounts of nitrogen-phosphorus-potassium applied showed a positive correlation with Co and Ni (r = 0.62; p a parts per thousand currency sign 0.05). As several soils used for growing food crops are high in Ni, Cr and Mn, the flow of these metals in soil-plant-livestock/human chain needs further attention.


英文关键词Fertilization practices Parent material Tropical climate Vertisols Inceptisols Alfisols Aridisols
类型Article
语种英语
国家India ; Papua N Guinea
收录类别SCI-E
WOS记录号WOS:000341813900017
WOS关键词AGRICULTURAL SOILS ; INDUSTRIAL-AREA ; ORGANIC-MATTER ; FLY-ASH ; CONTAMINATION ; CADMIUM ; FERTILIZATION ; POLLUTION ; HAZARDS ; SYSTEMS
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构International Crops Research Institute for the Semi-Arid Tropics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/182724
作者单位1.Cent Res Inst Dryland Agr, Hyderabad 500059, Andhra Pradesh, India;
2.Int Crop Res Inst Semiarid Trop ICRISAT, Patancheru 502324, Andhra Pradesh, India;
3.Papua New Guinea Univ Technol, Dept Agr, Lae 411, Morobe Province, Papua N Guinea;
4.Tamil Nadu Agr Univ, Coimbatore 641003, Tamil Nadu, India
推荐引用方式
GB/T 7714
Srinivasarao, Ch,Gayatri, S. Rama,Venkateswarlu, B.,et al. Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices[J]. International Crops Research Institute for the Semi-Arid Tropics,2014,11(7):1959-1972.
APA Srinivasarao, Ch.,Gayatri, S. Rama.,Venkateswarlu, B..,Jakkula, V. S..,Wani, S. P..,...&Krishna, G. Gopala.(2014).Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices.INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY,11(7),1959-1972.
MLA Srinivasarao, Ch,et al."Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices".INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY 11.7(2014):1959-1972.
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