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Clay mineralogical composition and chemical properties of Haplic Luvisol developed on loess in the protected landscape area Litovelské Pomoraví
European Journal of Soil Science ( IF 4.2 ) Pub Date : 2020-09-03 , DOI: 10.1111/ejss.13041
Ľubica Pospíšilová 1 , Peter Uhlík 2 , Ladislav Menšík 3 , Lukáš Hlisnikovský 3 , Aleš Eichmeier 4 , Eva Horáková 1 , Vítězslav Vlček 1
Affiliation  

The character of parent material, organic matter and climatic conditions are the crucial factors of pedogenesis. They directly influence the intensity of weathering, transformation processes, elements release and geochemical cycles. The mineral transformation in a profile of the recent soil developed on loess (Haplic Luvisols, Siltic, Epidystric, Ochric) was studied. The land area Litovelské Pomoraví was chosen because of the stability of soil‐forming factors such as topography, relief, vegetation and climate. X‐ray diffraction (XRD) quantitative analysis of the fine earth (<2 mm) and XRD analysis of clay (<2 μm) and the fine clay fraction (<0.2 μm) were applied. The obtained results showed the most significant differences between the argic horizons (Bt1 and Bt2) and other soil horizons. The lower content of quartz and feldspars and higher content of dioctahedral micas and phyllosilicates in both Bt horizons was observed. It was assumed the clay illuviation/lessivage process was preceded by long‐term leaching of carbonate in humid continental conditions during almost the whole Holocene. The distribution of the clay fraction correlates with the distribution of phyllosilicates through the profile. Major clay minerals in the clay fraction (<2 μm) were illite and kaolinite, smectite, chlorite, vermiculite and several types of mixed‐layered phases. The analysis of the finer clay fraction (<0.2 μm) identified the new phase hydroxy‐interlayered minerals as the product of illite (vermiculite) weathering in humid continental conditions.

中文翻译:

受保护景观区黄土上黄土中Haplic Luvisol的粘土矿物学组成和化学性质

母体材料的特性,有机质和气候条件是成岩作用的关键因素。它们直接影响风化强度,转变过程,元素释放和地球化学循环。研究了在黄土(Haplic Luvisols,Siltic,Epidystric,Ochric)上最近发育的土壤剖面中的矿物转化。选择LitovelskéPomoraví土地是因为地形,地形,植被和气候等土壤形成因素的稳定性。对细土(<2 mm)进行了X射线衍射(XRD)定量分析,对黏土(<2μm)和细土组分(<0.2μm)进行了XRD分析。获得的结果表明,阿根廷层位(Bt1和Bt2)与其他土壤层位之间的差异最为显着。在两个Bt层位都观察到较低的石英和长石含量以及较高的二八面体云母和层状硅酸盐含量。可以认为,在几乎整个全新世期间,在湿润的大陆条件下长期进行碳酸盐的长期浸出之前,都要进行粘土的浸润/疏松过程。通过剖面,粘土组分的分布与页硅酸盐的分布相关。粘土级分(<2μm)中的主要粘土矿物为伊利石和高岭石,蒙脱石,绿泥石,ver石和几种类型的混合层状相。对较细的粘土级分(<0.2μm)的分析确定,新相羟基中间层矿物是伊利石(ver石)在潮湿大陆条件下风化的产物。可以认为,在几乎整个全新世期间,在湿润的大陆条件下长期进行碳酸盐的长期浸出之前,都要进行粘土的浸润/疏松过程。通过剖面,粘土组分的分布与页硅酸盐的分布相关。粘土级分(<2μm)中的主要粘土矿物为伊利石和高岭石,蒙脱石,绿泥石,ver石和几种类型的混合层状相。对较细的粘土级分(<0.2μm)的分析确定,新相羟基中间层矿物是伊利石(ver石)在潮湿大陆条件下风化的产物。可以认为,在几乎整个全新世期间,在湿润的大陆条件下长期进行碳酸盐的长期浸出之前,都要进行粘土的浸润/疏松过程。通过剖面,粘土组分的分布与页硅酸盐的分布相关。粘土级分(<2μm)中的主要粘土矿物为伊利石和高岭石,蒙脱石,绿泥石,ver石和几种类型的混合层状相。对较细的粘土级分(<0.2μm)的分析确定,新相羟基中间层矿物是伊利石(ver石)在潮湿大陆条件下风化的产物。通过剖面,粘土组分的分布与页硅酸盐的分布相关。粘土级分(<2μm)中的主要粘土矿物为伊利石和高岭石,蒙脱石,绿泥石,ver石和几种类型的混合层状相。对较细的粘土级分(<0.2μm)的分析确定,新相羟基中间层矿物是伊利石(ver石)在潮湿大陆条件下风化的产物。通过剖面,粘土组分的分布与页硅酸盐的分布相关。粘土级分(<2μm)中的主要粘土矿物为伊利石和高岭石,蒙脱石,绿泥石,ver石和几种类型的混合层状相。对较细的粘土级分(<0.2μm)的分析确定,新相羟基中间层矿物是伊利石(ver石)在潮湿大陆条件下风化的产物。
更新日期:2020-09-03
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