里海低地西北部无明显微起伏的solonetz和栗子土粘土组分的矿物学对比分析

Q4 Agricultural and Biological Sciences Biulleten'' Pochvennogo instituta im VV Dokuchaeva Pub Date : 2020-03-27 DOI:10.19047/0136-1694-2020-101-159-181
N. Churilin, M. Lebedeva, E. Varlamov
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引用次数: 0

摘要

对比分析了板栗土和索罗内兹土的黏土组分(< 1 μm)的矿物学组成。在西北里海低地最古老的地区研究了土壤,那里的微起伏不太明显(微洼地深度不超过5-10厘米),但土壤覆盖面积相对较大。板栗土中粉粒含量为25.6% ~ 33.9%,土中粉粒含量为11.7% ~ 51.6%。土中高岭石结构的完善程度在剖面的底部逐渐增加。所获得的数据表明,在草甸-栗子土中,粘土阶段保留了土壤形成的溶蚀阶段的痕迹。
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Mineralogical comparative analysis of the clay fraction of solonetz and chestnut soil without apparent microrelief in the north-western part of the Caspian lowland
: A comparative analysis of the mineralogical composition of the clay fraction (< 1 μm) of chestnut soil and solonetz has been performed in the article. Soils were studied in the oldest part of the Caspian lowland in north-west where the microrelief is not quite apparent (microdepressions no more than 5–10 cm depth), but with a contrast soil cover. The content of silt fraction in chestnut soil varies from 25.6 to 33.9%, in the solonetz – from 11.7 to 51.6%. perfection of the kaolinite structure both in the solonetz and in the meadow-chestnut soil increases towards the bottom of the profiles. The obtained data allow suggesting that in the meadow-chestnut soil the clay phase retained traces of the solonetzic stage of soil formation.
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CiteScore
0.90
自引率
0.00%
发文量
15
审稿时长
8 weeks
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