马里博尔土壤的矿物组成、土壤学特征及所选化学元素的分馏

Q3 Earth and Planetary Sciences
Martin Gaberšek, H. Grčman, M. Gosar
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引用次数: 2

摘要

研究了马里博尔土壤的矿物组成、土壤学特征和部分化学元素的分异。矿物组成反映了地质因素,特别是马里博尔周围和德拉瓦河流域的火成岩和变质岩的存在。石英为主,其次为斜长石、白云母/伊利石、绿泥石和白云石。钾长石、角闪石和方解石也存在于一些样品中。部分样品pH值较高(6.9 ~ 7.4),植物速效磷(13.5 ~ 185 mg/100 g)和钾含量较高,反映了土壤学特征受到人为影响。有机质和碳酸盐含量中值分别为8%和6.1%。大部分样品属于砂壤土质地类,其次是壤土质地类。先前的化学分析表明,某些潜在有毒元素(pte)含量较高,特别是Cu、Pb和Zn。我们确定了As, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb和Zn的分馏使用顺序萃取程序。除Mn外,所有pte主要与有机质和王水中可溶的残余部分结合,这意味着它们与土壤组分的结合相对较强。砷、钴、铬和镍的结合特别强。第一级和第二级的内容物是pte中最容易交换的部分,可以忽略不计。结果表明,马里博尔土壤中pte的含量不构成环境威胁。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor
The mineral composition, pedological characteristics and fractionation of selected chemical elements in the soil of Maribor were studied. The mineral composition reflects geological factors, especially the presence of igneous and metamorphic rocks in the surroundings of Maribor and in the Drava River catchment. Quartz prevails, followed by plagioclases, muscovite/illite, chlorite and dolomite. Potassium feldspar, amphiboles and calcite are also present in some samples. Relatively high pH values (6.9–7.4), high contents of plant-available phosphorous (13.5–185 mg/100 g of soil) and potassium in some samples reflect the anthropogenic influence on the pedological characteristics. The medians of the organic matter and carbonate contents are 8 % and 6.1 %, respectively. The majority of the samples belong to the sandy loam texture class, followed by loam class. Previous chemical analyses showed high contents of some potentially toxic elements (PTEs), especially Cu, Pb and Zn. We determined the fractionation of As, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb and Zn using a sequential extraction procedure. All PTEs, except Mn, are mostly bound to organic matter and residual fraction soluble in aqua regia, meaning that they are relatively strongly bound to soil components. Arsenic, Co, Cr and Ni are particularly strongly bound. The contents in the first and second stage, which represent the most easily exchangeable fractions of PTEs, are negligible. The results indicate that the contents of studied PTEs in the soil of Maribor do not pose an environmental threat.
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来源期刊
Geologija
Geologija Earth and Planetary Sciences-Geophysics
CiteScore
1.00
自引率
0.00%
发文量
10
审稿时长
10 weeks
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