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1.
L. I. Belykh I. A. Ryabchikova V. A. Seryshev E. E. Penzina S. S. Timofeeva 《Eurasian Soil Science》2007,40(2):176-186
New methodological approaches and an algorithm for the quantitative assessment of accumulating a substance by a plant (C p ) with due regard for its concentration in the soil (C n ) are proposed. The first approach is the approximation of concentration curves by the functions C p = f(C n ) and their parameters. The second one is the standardization of the coefficients of biological sorption (K b ) of a substance upon its stable concentration in the soil using the function K b = f(C n ). As compared to the variation-statistical values of the mean and extreme concentrations, or the coefficients K b , the proposed parameters are characterized by a higher accuracy and sensitivity. They may be successfully used for quantitative studies of the mechanism and the intensity of the absorption of substances by plants, for the prediction of the accumulation of substances in the trophic chain, and the assessment of soil self-purification (detoxification) and comparative ratings. 相似文献
2.
The accumulation and deactivation (detoxification) of heavy metals in soils and in soil iron-manganic nodules have been studied. Data on the relative distribution of the total and mobile compounds of heavy metals in soils and nodules upon different rates of technogenic loads are obtained. It is shown that iron-manganic nodules play the role of specific depositors in the soil system, affect the redistribution of heavy metals in the soil cover, and control their migration in the soil profiles. 相似文献
3.
I. S. Urusevskaya V. M. Kolesnikova A. S. Timofeeva 《Moscow University Soil Science Bulletin》2015,70(4):153-160
The paper studies the soils of the New Jerusalem monastery complex, which covers a vast area in the Istra River valley and has been significantly changed since the foundation of the monastery (in 1656). The main types of anthropogenically transformed and natural soils are identified; their morphological peculiarities and physical and chemical properties are characterized. The regularities of the spatial soil distribution, which are determined by both natural and anthropogenic factors, are ascertained. The results of the study can be used in implementing the restoration of the monastery and reconstruction of the historical landscape. 相似文献
4.
Timofeeva Yana O. Karabtsov Alexander Ushkova Maria Burdukovskii Maxim Semal Victoria 《Journal of Soils and Sediments》2021,21(2):1064-1078
Journal of Soils and Sediments - The aim of this study was to characterize the influence of soil contamination on the trace element accumulation in nodules, inter-element relationships inside the... 相似文献
5.
I. N. Anisimova V. A. Gavrilova V. T. Rozhkova G. I. Timofeeva M. A. Tikhonova 《Russian Agricultural Sciences》2009,35(6):367-370
The presence of the Rf1 gene (pollen fertility restorer of CMS PET1) in genotypes of most restorer lines is confirmed by molecular and hybridological
analysis methods. Molecular markers of the Rf1 locus are identified for the first time in genotypes of autofertile lines of the collection of the Vavilov All-Russian Research
Institute of Plant Industry (VIR) as well as in genomes of perennial and annual wild species of the genus Helianthus. The possibility of introgression of the fertility restorer gene into the genome of the cultivated sunflower during distant
hybridization is shown. 相似文献
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7.
The probable mechanisms responsible for the accumulation of microelements in iron nodules and the particular features of this
process are analyzed on the basis of experimental materials on the content of microelements in and the physicochemical properties
of the nodules. Knowledge of the microelements’ accumulation by concretionary neoformations will allow determining trends
in soil formation and make it possible to control the process of microelements’ accumulation proper. 相似文献
8.
E. A. Timofeeva E. I. Karavanova A. V. Smagin 《Moscow University Soil Science Bulletin》2007,62(4):190-195
The water retention curves, pore size distributions, and chemical compositions of soil solutions were described for some soils of the Central Forest State Nature Biosphere Reserve. The threshold values of soil water content and applied negative pressure for obtaining a homogeneous soil solution from a specific category of soil pores were found. The effect of soil water on the chemical composition of soil solution was studied. 相似文献
9.
Bobrik A. A. Goncharova O. Yu. Matyshak G. V. Ryzhova I. M. Makarov M. I. Timofeeva M. V. 《Eurasian Soil Science》2020,53(11):1549-1560
Eurasian Soil Science - In the course of studies in typical forest ecosystems of the northern, middle, and southern taiga of Western Siberia performed at the peak of the growing season, the spatial... 相似文献
10.
Burdukovskii M. L. Golov V. I. Perepelkina P. A. Kiseleva I. V. Timofeeva Ya. O. 《Eurasian Soil Science》2021,54(6):943-950
Eurasian Soil Science - The changes in the physical properties and carbon stocks of dark-humus podbels (Luvic Albic Mollic Planosols (Epiloamic, Endoclayic, Aric)) during long-term agricultural use... 相似文献