Open AccessTRANSFORMATION OF CLAY MINERALS IN SOILS OF SANDY DESERTS UNDER DIFFERENT SAXAUL SPECIES
Author(s) -
Н. П. Чижикова,
М. П. Лебедева
Publication year - 2014
Publication title -
bûlletenʹ počvennogo instituta imeni v.v. dokučaeva/bûlletenʹ počvennogo instituta im. v.v. dokučaeva
Language(s) - English
Resource type - Journals
eISSN - 2312-4202
pISSN - 0136-1694
DOI - 10.19047/0136-1694-2014-76-74-91
Subject(s) - soil water , biogeochemical cycle , chemistry , litter , clay minerals , botany , soil science , environmental chemistry , environmental science , mineralogy , agronomy , biology
As a result of experimental studies carried out for the first time with the aim at determining the impact of black (Haloxylon aphyllum) and white Saxaul (Haloxylon persicum) on the mineralogical composition of fine-dispersed fractions in sandy desert soils, it seemed reasonable to conclude that the transformation of minerals is quite different in soils used under different Saxaul species. This is explained by differences in biogeochemical turnover of elements in soils under black Saxaul and as a consequence by a higher Na content in the litter and the soda for-mation in the soil profile. The latter serves as a cause of alkalinization of soil solutions and transformation of minerals affected by alkaline hydrolysis.