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2007 year, number 3
V. A. Chulkina, E. Yu. Toropova, G. Ya. Stetsov
Pages: 335–344
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A priority evolution-ecological concept of the development of plant protection is developed. This concept combines the achievements of evolution ecology in the area of the indices of evolution-ecological strategy and tactics of the life cycles of biological species against hazardous organisms (phytopathogens, phytophagues, weeds), the ideas of the beginnings, course and attenuation of epiphytotic process, ecological classification of hazardous organisms allowing one, relying upon the system agrotechnical method, to create the conditions which would be favourable for the functioning of under- and overground parts of plants and unfavourable for reproduction, survival and trophic links of hazardous organisms in agricultural ecosystems; irrational application of pesticides may thus be rejected or reduced substantially.
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I. V. Volkov, S. P. Kulizhsky
Pages: 345–351
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Plant waste is accumulated and decomposed between tightly growing shoots of polster plants. This allows polster plants to compensate for the deficiency in nutrients in case of their lack in the habitats. Due to this feature and favourable hydrothermal regime inside the
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A. D. Makiev, K. Kh. Byasov
Pages: 353–355
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The modern agroecological situation with typical black soil in the foothills of the Central Caucasus is considered. The data allowing one to evaluate the state of typical black soil were obtained experimentally. A procedure based on qualitative and quantitative changes in plough-land, in comparison with virgin lands was approved. The results confirmed morphological and other investigations.
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A. A. Danilova, A. E. Malygin
Pages: 357–362
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An increase in the resources of the mortmass in soil promoted a decrease in the threshold of sensitivity of the microbial complex of leached black soil to the action of pesticides. An increase in the level of the biological activity of soil with an increase in the resources of the mortmass was not accompanied by the intensification of 2,4-D decomposition.
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L. I. Inisheva, A. V. Golovchenko
Pages: 363–373
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Results of the distribution of microorganisms in peal fields of the landscape profile of the north-eastern part of the Vasyuganskoye Bog are presented.
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G. G. Gonchikov, B. B. Namsaraev, A. M. Zyakun, V. B. Dambaev
Pages: 375–380
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Organic and inorganic carbon stable isotopes in Transbaikalian sor solonchaks are studied. The ratios of organic carbon stable isotopes in solonchaks varies from
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N. A. Roslyakov, Yu. A. Kalinin
Pages: 381–400
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The background ecological status of the geological environment, as well as the complicating n
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L. N. Chindyaeva, E. V. Banaev, O. N. Potemkin
Pages: 401–408
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Specific diversity of urban arboriflora, the status, resistance and the use of native and exotic species in urbanized environment were studied in Novosibirsk and other cities and towns of Siberia as examples.
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V. V. Koneva
Pages: 409–415
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The lichen species composition was revealed and checklist was constructed, including 371 species from 1 class, 13 orders, 46 families and 93 genera for the territory between two rivers, the Ob and the Chulym. The species which are new for Russia, Siberia and Asia were defined: two species, Verrucaria keisslerii Szat., V. murorum (Arnold) Lindau, were noted for the first time in Russia and Asia. Six species, Endocarpon psorodeum (Nyl.) Th. Fr., Lecan
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L. N. Poryadina
Pages: 417–420
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The data on the lichen flora of the Algama basin in the south-east Yakutia are presented. The lichen flora of the studied area includes 102 species of lichens from 40 genera and 15 families belonging to 4 orders. The lichen flora is characterized as a boreal one with the presence of some mountain species. Here, 3 lichens species new for Yakutia have been found; they are: Parmelia squarrosa Hale, Platismatia glauca (L.) W.Culb.et C.Culb., Lobaria pulmonaria (L.) Hoffm.
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L. P. Barannik, V. N. Egorov
Pages: 421–424
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Demutation of the stands of Siberian linden degraded after an eruption of pathogenic fungi is possible in the case of the natural formation of vegetative young growth. Account of the young growth of linden in the plantations weakened by epitophytotia revealed the necessity of rejuvenation felling.
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T. A. Kukushkina, G. I. Vysochina
Pages: 425–430
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The dynamics of the phenolic compounds content in Alchemilla vulgaris L. plants introduced from the high-mountain areas of the Altai Mountains to the forest-steppe zone of West Siberia is presented. The content of phenolic compounds in the roots of Alchemilla vulgaris L. is 1,5
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R. N. Alekseeva, N. N. Goncharova
Pages: 431–439
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We studied vegetation communities, their floristic composition, stratigraphy of peatlands of mesotrophic sphagnum bogs of the basin of the Luza river (a tributary of the Northern Dwina). Rare species of vascular plants and mosses registered in the Red data Book of the Komi Republic, that are growing on these bogs, are of interest for scientists. The data on the chemical composition of surface bog waters is given. Possible economic use of the bogs is assessed.
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A. P. SIZYKH
Pages: 441–447
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This paper is concerned with the problem of determining the character of disturbance of plant communities by considering an example of the Lake Baikal
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M. Yu. Telyatnikov
Pages: 449–464
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A comparison of the coenofloras of moss tundras, dryas tundras and cryophytic grassy bogs of the Subarctic region of Yamal, Taymyr and Yakutia is carried out. The values to be compared include the parameters of activity and species richness of the ecological groups of coenofloras. The comparison of the three coenofloras of the Subarctic tundras on the basis of the conditions of heat and humidity resources showed that the habitats of Yamal noticeably differ from the habitats of Taymyr and Yakutia. In Yamal, the conditions are warmer in all the habitats except for the habitats of grassy bogs of the zone of typical tundras. The majority of the habitats in Yamal have less humid conditions. The hydrothermic conditions of Taymyr and Yakutia are similar. The given differences are caused by an increase in continentality of climate from west to east.
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V. S. Kursakova
Pages: 465–469
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Consequences of the action of sown perennial grasses on salinization and alkalinization of strongly saline black meadow soil are considered. Perennial grasses provide the conditions for the accumulation of biogenic calcium in the root layers of soil, thus resisting their alkalinization. The obtained data allow one to evaluate the ecological safety of phyto-melioration as a method of saline land improvement.
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N. A. Zaika, T. I. Gromovykh
Pages: 471–475
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Soil fungi from the Trichoderma genus were successfully used to protect plants from phytopathogens. Siberian Trichoderma strains exhibiting the high antagonist activity against the phytopatogens of conifers and cereals were chosen for solid-phase fermentation on various plant substrates. The objects of our study were two isolates
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I. E. Lobanova, O. V. Anulov, V. D. Shcherbukhin
Pages: 477–484
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For the first time, accumulation and degradation of water-soluble polysaccharides
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E. A. KARPOVA
Pages: 485–493
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The flavonoid complexes of the overground parts of four species of Euphorbia L. from two sections of Esula Pers. subgenus: section Tulocarpa (Raf). Prokh.
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T. I. Novikova, K. K. Sidorova
Pages: 495–498
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The activitity of flavonol-oxidizing enzymes (flavonoloxidase, peroxidase) in roots and root nodules of cultivars Torsdag, Ramonsky 77 and its supernodulating mutant K301 were studied. The obtained results, demonstrating the connection of phenolic
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M. A. LARINA, I. M. KRASNOBOROV
Pages: 499–504
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The information about the structure of flora of the valley of river Tuba is presented. The results of systematical, geographical, zonal, ecological, biomorphological analyses are presented; 21 endemic species, 32 relic ones, 44 rare and disappearing species have been registered in the vegetable cover of the Krasnoyarsk Territory.
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S. Rakhimov
Pages: 505–509
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The biological-morphological features and ontogenesis of Ferula foetidissima Regel et Schmalh. are considered. The species is widespread in the South-Western Tadjikistan; it is an edificator of big-grass semisavann
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T. V. Zhuikova, O. A. Severyukhina, V. S. Bezel, N. M. Prushinskaya
Pages: 511–516
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The state of male gametophyte of two morphological forms of Taraxacum officin
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