Open AccessStatistical analyses of chemical and physical properties of alluvial soils in the Belaya river valley (Near-Angara region) and its interpretation
Author(s) -
S. A. Korshunova,
AUTHOR_ID,
S. L. Kuklina,
AUTHOR_ID
Publication year - 2021
Publication title -
počvy i okružaûŝaâ sreda
Language(s) - English
Resource type - Journals
ISSN - 2618-6802
DOI - 10.31251/pos.v4i3.139
Subject(s) - alluvium , humus , soil water , alluvial plain , loam , geology , soil horizon , soil science , loess , soil classification , parent rock , usda soil taxonomy , soil test , hydrology (agriculture) , geomorphology , geotechnical engineering , paleontology
The aim of the study: to describe chemical and physical properties of alluvial soils using a big array of data. Location and time of the study. The study was carried out in the Belaya River valley from 1993 to 2019. Methodology. The data of 237 soil samples collected from genetic horizons of alluvial soils from the Belaya River Valley (52º40'–53º00'N, 103º00'–104º00'E, Priangariye, Russia) were statistically processed by using descriptive statistics, cluster and correlation analyses. To perform statistical analyses soil samples were grouped according to their humus content: all horizons, all humus horizons, all non-humus horizons. Main results. Most of the horizons were characterized as slightly alkaline, sandy loam, medium humus ones. The positive relationship between exchangeable Ca2+ and Mg2+ is due to their joint presence in parent rock material, i.e. dolomite. Cluster analysis allowed identifying groups of horizons (for example, mineral and mineral-organogenic), sharply differing in properties. Conclusion. The presented chemical and physical properties of alluvial soils described using a big array of soil samples, can be used as a reference for monitoring their change in the future due to various natural and anthropogenic factors.