Open AccessSoils of natural, arable and fallow Lands of the Selenga River delta
Author(s) -
И. А. Белозерцева,
O. A. Ekimovskaya,
Д. Н. Лопатина
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/381/1/012009
Subject(s) - humus , soil water , arable land , environmental science , chernozem , soil science , agronomy , geology , hydrology (agriculture) , agriculture , ecology , biology , geotechnical engineering
Soil-geographical investigations were made in the Selenga river delta (the southeastern coast of Lake Baikal) in the summer of 2017 and 2018. The Selenga delta developed Fluvisols aridic, Fluvisols umbric (gleyic), Fluvisols humus, Fluvisols mollicgleyic, Fluvisols Histic-gleyic, Folic-podburs, Gray (metamorphic) and Folic-gray soils. Fertile soils of the second bottom with Chernozems and Phaeozems are used as arable lands. Agricultural lands of terraces with Gray and Folic-gray soils are used as pastures. The soils of the low floodplain are put to agricultural use. It was established that the soils in most of agricultural lands are in satisfactory agricultural condition. The upper horizons of Gray soils under forest and Chernozems under steppe in natural condition have high humus concentrations. In soils permanently used in agriculture, humus content decreases. In fallow lands, its concentrations are recovering. The reaction of the medium (pH of water) in the soils is largely neutral. Gray soil under forest is distinguished by slightly acidic reaction. It was found that the soils of the Selenga delta have mostly a light granulometric composition.