Elizareva E.N., Yanbaev Y.A., Redkina N.N., Kudashkina N.V., Baykov A.G.
ASSESSMENT OF SOIL POLLUTION IN THE ZONE OF INFLUENCE OF METALLURGICAL ENTERPRISES [№ 9 ' 2017]
The total contents of heavy metals in soils selected in the zone of influence of Karabashmed CJSC, Satkinsky Iron-smelting Plant JSC and Uchalinsky Ore Mining and Processing Plant OJSC were analyzed. The excess of the standards for all metals except manganese has been established. The phytoremediation method — accumulation of heavy metals from soil by plants was tested on the investigated soils. It is shown that after growing plants in the soils, the content of iron, zinc and copper decreased. Assessment of soil contamination degree using the concentration coefficient showed that in the studied soils before planting the total amount of most metals is within the limits of natural fluctuation. A weak level of soil contamination with cadmium has been established (Uchaly), moderate contamination with copper (Uchaly) and zinc (Karabash), heavy pollution with cadmium and copper (Karabash). As a result of the use of phytoremediation technology, the concentration coefficients for iron, zinc and copper have significantly decreased. And according to the content of copper, Uchalv’s soil passed from the category of moderate pollution to the category of low pollution. To estimate the multielement influence the levels of heavy metal contamination were calculated using the Saet’s index and the index proposed by Yu.N. Vodyanitsky, taking into account the different toxicity of heavy elements and based on the average geometric parameters. It is shown that the use of phytoremediation technology decreases the level of total contamination of soils with heavy metals.
Elizareva E.N., Yanbaev Y.A., Kulagin A.Y.
PLANTS FOR PHYTOREMEDIATION OF HEAVY METALS CONTAMINATED WATER [№ 3 ' 2016]
Currently the growing flow of heavy metals from wastewater into natural water bodies assumes the character of a global environmental threat. Causing serious environmental damage, heavy metals have biological activity, mutagenic and carcinogenic properties, resulting in the poisoning and death of the organism. To minimize the negative effect of heavy metals on the hydrosphere is necessary to develop new and improve existing wastewater treatment methods. The most effective, efficient and environmentally friendly wastewater treatment methods may be based on the ability of plants to accumulate toxicants. In order to select plants suitable for wastewater phytoremediation, the characteristics of the 18 plants grown in the model solutions containing heavy metals were studied. It has been shown that when added a mixture of ions (zinc, copper, cadmium, nickel and chromium), plants absorb them from the solution in smaller amounts than when added into the nutrient solution nickel or cadmium separately. At the same time the mixture of metals is more toxic to plants than individual metals. Heavy metals concentrations in the raw plant biomass were compared with the maximum permissible concentrations of metals in foods and the maximum allowable level of their content in forage. It was found that there is antagonism of metals accumulation by plants and synergism of metals toxic effect. Plant species (2 varieties of zucchini, corn and 1 varieties of cabbage) have been selected for phytoremediation of wastewater containing a mixture of heavy metals, with the possibility of further use of biomass as forage.
Tagirov B.B., Yanbaev Yu.A., Tagirova A.A., Redkina H.H.
INDIVIDUAL VARIABILITY OF HEIGHT INCREMENT OF SCOTS PINE`S UNDERGROWTH IN ABANDONED AGRICULTURAL LAND [№ 10 ' 2015]
The article contains results of analyses of individual variability of annual height increment of Scots pine (Pinus sylvestris L., Pinaceae). Region of research is presented by forest-steppe of Bashkir Trans-Urals, where in recent decades a large-scale of natural reforestation of Scots pine in out-of-use agricultural land — abandoned arable, hayfields and pastures is occurred. 30 areas of Scots pine`s self-seeding were selected on the territory of Uchaly region of Republic of Bashkortostan on a provisional transect `north-south` length of nearly 100 km. The amount of the annual increment in height in the years 2009–2013 was measured at 4 000 copies of undergrowth (30 plants / year for each test area). The study proved that the variability of a feature within separate reforestation areas is mainly determined by genetic characteristics of undergrowth rather than by environmental conditions.
Yanbaev Y.A., Boronnikova S.V., Akhmetov A.R., Nechaeva Y.S., Prishvinskaya Y.V.
ISSR-MARKERS AS A TOOL FOR INVESTIGATIONS OF POPULATION GENETIC DIFERSITY: A CASE STUDY OF THE NORWAY MAPLE (ACER PLATANOIDES L.) [№ 6 ' 2014]
Polymorphism of 9 populations of the Southern Ural's maple (Acer platanoides L.) was investigated by using ISSR-analysis. Proportion of polymorphic fragments DNKranged from 0,800 to 0,926 (depending on primers) and amounted to an average0.861. The analysis did not reveal any geographical patterns in genetic diversity of populations. Recommendations about protection and rational use of genetic resources of a look in the region are made.
Redkina N.N., Kinyabulatov S.S., Yanbaev Yu.A., Mullagulav R.Yu.
ABOUT NECESSITY OF POPULATIONAL APPROACH AT INTRODUCTION OF GROWING WILD PLANTS INTO CULTURE [№ 6 ' 2009]
Seldimirova O.A., Yanbaev Yu.A., Zaitsev D.Yu.
ISOENZYME MARKERS AT RESEARCHES OF CHANGEABLENESS OF SPRING SOFT WHEAT BREED DISTRICTED IN BASHKORTOSTAN [№ 6 ' 2009]
Yumaguzhin F.G., Talipov A.N., Yanbaev Yu.A., Safargalin A.B.
ABOUT USING OF MORPHOLOGICAL FEATURES FOR SOLUTION OF THE PROBLEM OF BURZYANSK EDGE BEE GENEPOOL PRESERVATION [№ 6 ' 2009]
Yanbaev Yu.A., Redkina N.N., Yusupova A.A., Mullagulov R.Yu.
GENETIC VARIETY OF CERASUS FRUTICOSA PALL. (ROSACEAE) ON SOUTH URAL [№ 6 ' 2009]
Mullagulov R.Yu., Redkina N.N., Yanbaev Yu.A.
ALLOZIME VARIABILITY OF PETIOLATE OAK QUERCUS ROBUR L. (FAGACEAE) IN ISOLATED POPULATIONS ON THE EAST BORDER OF AREA [№ 2 ' 2008]
Genetic structure of two isolated populations of petiolate oak, located on the last East border of area in extreme ecological conditions for division is researched with using of isoenzyme markers of 17 locuses on the territory of Bashkiria trans-Ural. Uniqueness of their genofond and relative weak intersample subdivision are revealed in this article.
Talipov A.N., Yanbaev Yu.A.
MORPHOLOGIC AND GENETIC DIFFERENTIATION OF MELIFEROUS BEE IN BASHKIR TRANS-URAL REGION [№ 12 ' 2006]
The morphologic and genetic variety of meliferous bee (Apis mellifera L.) at the territory of Bashkir Trans-Ural region and mountain-forest part of South Ural was studied. It was determined that genetic fund of the population within the region’s limits is heterogeneous. It can be connected with uncontrolled delivery of bees from other regions. Differences in morphologic and genetic mutability of Bashkir Trans-Ural region extracts and Burzyan wild-hive bee was detected which is a threat to its genetic fund.
|Sergey Aleksandrovich |