The content of microelements (Mn, Zn, Cu, Co, Ni, Cr, Pb, and Cd) and Fe is determined in the soils and plants of the Lake Kotokel' basin. Their content in the soils is proved not to exceed the regional background and the existing MPC and APC. The content of Cd is revealed to exceed its clarke value for the world soils, which is related to the natural origin of this element. The concentrations of Mn, Co, and Pb are close to their clarke values, and those of Zn, Cu, Ni, and Cr are lower than their clarkes. The studied soils are specified by the maximal amount of the mobile forms of microelements. The profile distribution of the microelements differs depending on the genetic soil type. For Mn, Zn, and Cu, a significant biogenic accu mulation is pronounced in the organic soil horizons. The content of microelements in the aboveground phy tomass exceeds the maximal permissible levels for Mn, Co, Cr, and Fe. The intensity of the microelements absorption by the plants varies widely, being specified by the high coefficient of the biological adsorption (except for Fe). Mn, Zn, and Cu are accumulated in the plant phytomass the most intensely.
L. chinensis (Trin.) Tzvelev is a valuable hay and fattening grazing plant. The paper objective is to study L. chinensis production and protein ratio in communities growing under different ecological conditions of West Transbaikalia. It was established that the leymus community primary production is 1029-2370 g/m2 a year; the aboveground phytomass is almost completely formed by L. chinensis. The biochemical composition, forage value and protein ratio of the edificator are determined by the growing conditions, and complies with regulatory indicators, in general.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.