Khasanova R.F., Semenova I.N., Suyundukov Ya.T., Rafikova Yu.S., Biktimerova G.Y., Ilbulova G.R., Kuzhina G.Sh., Ilyina I.V.
ECOLOGICAL ESTIMATION OF POLLUTION BY HEAVY METALS OF SOILS OF INDUSTRIAL ZONES OF SIBAY CITY ^{[№ 12 ' 2017]}
The state of soils affects the environment and natural resources, the level of economic and social development and public health. In this paper, the content of heavy metals in the soils of the center of the mining industry of the Trans-Ural region of the Republic of Bashkortostan, Sibai, has been studied. Sibai soils contamination with heavy metals is associated with anthropogenic activity and differs in various degrees of concentration. In the soils, high concentrations of gross and mobile forms of Cu, Zn, Ni, Mn, Cd were detected. A number of accumulations of metals have been formed over the gross content: Zn < Cu < Co < Cd < Pb < Mn < Ni < Fe, from mobile forms: Cu < Zn < Mn < Cd < Ni < Co < Pb < Fe. According to the total pollution index, the ecological status of the studied urban soils is estimated as “moderately dangerous” and “permissible”.

Yamalov S.M., Tania I.V., Hasanov G.R., Lebedev M.V.
TWO ASSOCIATION OF HERBACEOUS PLANT COMMUNITIES IN RIZA RELIC NATIONAL PARK (REPUBLIC OF ABKHAZIA) ^{[№ 8 ' 2016]}
Subalpine meadows communities are widespread in at an altitude of 1600–2400 m above sea level in the Riza relic national park (RRNP), traditionally used as a pasture. Most of them are disturbed in a varying degree, and partially transformed to ruderal communities. So these are highly significant in nature conservation and recreation. Authors set the object to characterize two associations of meadows in RRNP. The dataset is 10 releves executed by authors in the field season of 2013–2015. Participation of species in a vegetation was estimated on Braun-Blanquet scale. For processing of releves the software packages of TURBOVEG and JUICE are used. According to syntaxonomy analysis result communities were attributed to Potentillo ruprechtii-Campanuletum tridentatae association (Hyalopoetalia ponticae Onipchenko 2002, Salicetea herbaceae Br.-Bl. 1948) and Gentiano dshimilensi-Sibbaldietum semiglabrae association (Nardetalia Oberd. ex Preising 1949, Calluno-Ulicetea Br.-Bl. et Tx. ex Klika et Hadač 1944). The first one combine low-herbage alpine meadows of low alpine belt. These are chacterized by significant snow accumulation in winter, short vegetation period and located on south slopes of mountains. The second one combine subalpine meadows communities on poor rocky soils (above 15 % of substratum rockiness). These are located on moderatly steeep north and north-west slopes. There are rare and conservation needed species in floristic composition of association: Traunsteinera sphaerica (Red book of Russian Federation included), Potentilla ruprechtii, Cystopteris fragilis, Coeloglossum viride (Red book of Krasnodar district). Communities have high nature conservation importance because of its small distribution area in RRNP and lack of sufficient protection at the present time.

Khasanova R.F., Suyundukov Ya.T., Salmanova E.F.
OPTIMIZATION OF SOIL HUMUS CONDITION STEPPE AGROECOSYSTEMS ^{[№ 10 ' 2015]}
The development of virgin land and arable use leads to a decrease of humus content in the soil, which is accompanied by the gradual destruction of valuable units and leads to the development of erosion processes, degradation of vast areas of steppe ecosystems. Restoration of disturbed steppe ecosystem is to recover as the natural vegetation and soil steppes. Perennial grasses form a large amount of organic matter and promote the formation of humus, activate vital activity of the soil microflora, provide cycling of matter, the formation of soil aggregates, and others. Thanks to a strong root system of perennial grasses also provide erosion protection of the humus layer of the flushing and blowing. The research is devoted to studying the role of perennial grasses to stabilize the soil with humus Zauralye the Republic of Bashkortostan. It was revealed that under perennial grasses, especially under the natural grass communities there is an intensive restoration of humus, which is closely correlated with the parameters of a biomass plant. Increased humus content decreasing the size of the units is accompanied by an increase in their water stability (r = 0,62). Introduction to the field crop rotations sown perennial grasses allows 2–3 years to increase the humus content in the soil at 0.3–0.5 %. Create Agrostep contributed to the restoration of natural vegetation and a positive balance of humus, the soil close to the virgin nature of the content and profile distribution. The most effective humification process occurs under steppes in the version with 4-kratnym disking on the background of fertilizers.

Khasanova R.F.
ECOLOGICAL CONDITION SALINE SOILS OF ТRANS-URALS OF THE BASHKORTOSTAN REPUBLIC ^{[№ 6 ' 2015]}
Saline soils are an integral part of soil dry steppes. Salinization leads to physical degradation of land and further to remove them from agricultural use. Due to the physical properties of the salinity, the biological activity of the soil have their specificity, different from the process in non-saline soils. The aim of our study was to investigate the structural and aggregate state and cellulolytic activity of saline soils, presented in conjunction with the southern black soil, having the most widespread in the Тrans-Urals Republic of Bashkortostan. Results of the analysis of salt water extract of saline soils showed that the largest dry residue meadow chernozem soil belongs to slightly saline. Solonet meadow in the 0—10 cm layer refers to the average salted soils in the 10—30 cm layer goes into the category of strongly saline soils. Type of salinity on the anionic composition of salts in the meadow-chernozem soil sulphate, while solonets meadow — soda-sulfate. In the meadow solonets observed not only increased amounts of sodium and magnesium. Comparative analysis of structural-aggregate composition of saline soils revealed a trend: the more water-soluble salts, the less agriculturally valuable air-dry aggregates and more water-resistant aggregates. Fractional analysis of soil structures showed that for saline chernozems are characterized by high blocky. According to the scale and S.I.Dolgov P.U.Bahtin structural state of meadow chernozem saline soils rated as "good", solonets meadow  — "satisfactory". One measure of the biological activity of the soil and its fertility is the cellulolytic activity of soil. On a scale O.E.Pryazhennikova intensity of cellulose destruction on meadow solonetses very weak (≤ 10), on the meadow chernozem saline soil medium (30—50 %). Thus, meadow-chernozem soil composition anionic salts are sulfate salinization, solonetz meadow — soda-sulfate. Soil salinization is reflected in some of their properties: deteriorating structural condition and reduced cellulolytic activity.

Suyundukov Ya.T., Khasanova R.F., Salmanova E.F.
PHYTOMELIORATIVE WAY OF REMEDIATION OF SOIL PROPERTIES OF STEPPE ECOSYSTEMS ^{[№ 6 ' 2014]}
Influence of sown perennial herbs and herbs from among of natural communities on agrophysical properties of Chernozems of Trans-Ural of the Republic of Bashkortostan (RB) is studied. Effective phytomeliorants for restoration of Chernozems in a North-South gradient are revealed. Restoration of the degraded soils' properties of agroecosystems of Trans-Ural of the RB under the agrosteppes created by the Dzybov method is investigated. Various options are considered and the most effective combinations of soil handling for agrosteppes are identified.

Khasanova G.R., Yamalov S.M.
THE EXPERIENCE OF SEGETAL VEGETATION COMMUNITIES CLUSTER ANALYSIS OF SOUTH URAL ^{[№ 5 ' 2013]}
The cluster analysis of vegetation communities segetal Southern Urals (Bashkortostan), using the program TWINSPAN was carried out. Identified three leading factors differentiating communities — a zone-climatic factor, factor of the time (change of farming) and agrocenotic factor.

Ablaeva A.R., Hasanova R.F., Safiullina R.R.
CELLULOLYTIC ACTIVITY OF ORDINARY CHERNOZEM UNDER DIFFERENT TYPES OF PLANTS IN THE REPUBLIC OF TRANSURALS BASHKORTOSTAN ^{[№ 12 ' 2011]}
The paper presents an analysis of the intensity of cellulose destruction on ordinary chernozem under sown with perennial and annual crops and grasses from natural communities.

Safiullina R.R., Ablaeva A.R., Dubovik I.E., Hasanova R.F.
DIVERSITY OF SOIL ALGAE AND CYANOBACTERIA UNDER SOME REPRESENTATIVES OF THE FAMILY FABACEAE, POACEAE IN ORDINARY CHERNOZEM TRANSURALS BASHKORTOSTAN REPUBLIC ^{[№ 12 ' 2011]}
As a result of the spent researches under some representative of family Poaceae, Fabaceae on ordinary mould humus 60 kinds and intraspecific taxons of seaweeds were found. It was first defined the species composition of algae in agronomically valuable aggregates of soil under Elytrigia repens L., Medicago sativa L.

Ablaeva A.R., Akhmetov F.R., Khasanova R.F., Suyundukov Ya.T.
WATER-RESISTANCE OF ORDINARY CHERNOZEM IN CONDITIONS OF BASHKIR ZAURALIE ^{[№ 6 ' 2009]}

Kudashkina N.V., Pupykina K.A., Faizullina R.R., Shaidullina G.G., Khasanova S.R., Afanasieva Yu.G., Galiakhmetova E.Kh.
ECOLOGICAL ASPECTS IN STUDYING OF SPECIALISTS OF PHARMACEUTICAL PROFILE ^{[№ 6 ' 2009]}

Kudashkina N.V., Pupykina K.A., Faizullina R.R., Shaidullina G.G., Khasanova S.R., Afanasieva Yu.G., Galiakhmetova E.Kh.
ECOLOGICAL ASPECTS AT TEACHING OF SPECIALISTS OF PHARMACEUTICAL PROFILE ^{[№ 6 ' 2009]}

Khasanova Z.M., Khasanova L.A., Naumov L.G., Samoilova L.Yu.
MORPHO-PHYSIOLOGICAL PECULIARITIES OF GROWTH AND DEVELOPMENT OF NOSEBLEED ACHILLEA MILLEFOLIUM ^{[№ 6 ' 2009]}

Khasanova R.F., Suyundukov Ya.T.
AGROECOLOGICAL APPRAISAL ORDINARY CHERNOZEM IN BASHKIR ZAURALIE ^{[№ 6 ' 2009]}

Khasanova Z.M., Khasanova L.A., Naumov L.G., Zamanova N.A.
DYNAMICS OF HYDROXYCINNAMON ACIDS ACCUMULATION BY PLANTS ECHINACEA PURPUREA AT DIFFERENT CONDITIONS OF WATER SUPPLY ^{[№ 2 ' 2007]}
The influence of irrigation on hydroxycinnamon acids accumulation at the process of E. purpurea plants growth and development. It is shown that irrigation of E. Purpurea (200 m3/ hectare) promotes the increase of plants production. Maximal number of hydroxycinnamon acids is accumulated at leaves of E. purpurea at the stage of rosette on the second and third years of vegetation. It is recommended to use irrigation as effective afromethod for receiving of qualitative medicinal raw at great values (double hay harvest) from E. purpurea plants, introducted at conditions of Southern Ural.