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タグ「plants」

Genetic effects of exposure to flora (plant population) under circumstances with radioactive contamination

Author: KAL’CHENKO V.A.
Reference: Moscow, 1998
Keywords: genetic effects, plant, contamination of environment

Abstract: Our aim was to evaluate genetic processes in plant populations under radioactive contamination resulting from a large-scale accident at a nuclear industry.

URL:http://earthpapers.net/vliyanie-ioniziruyuschey-radiatsii-na-uroven-polimorfizma-dnk-v-raznyh-tkanyah-u-potomstva-obluchennyh-myshey

Radiation control and monitoring of agricultural products in the context of global and local radioactive fallout

Title: Radiation control and monitoring of agricultural products in the context of global and local radioactive fallout

Author: Kalmykov, Mikhail Viktorovich

Reference: Moscow, 2001

Keywords: animals, plants, soil, agriculture, Russia, veterinary radiological control, monitoring, forage, cesium-137, strontium-90

Abstract: The aim of the thesis – to review and analysis of the general laws of radiation situation formation in the sphere of agricultural production in Russia and other individual regions of the country – radio-ecological justification of veterinary radiological control, monitoring, rationing of radionuclide content in the forage and the development of acceptable levels of their content

URL:http://www.dissercat.com/content/radiatsionnyi-kontrol-i-monitoring-selskokhozyaistvennoi-produktsii-v-usloviyakh-globalnykh-

Method of removing radionuclides from soil

Author: V.V. Strelko, D.I. Shvets, O.A. Glushachenko, N.M. Openko, L.M. Romanov, D.M. Grodzinsky, E.A. Konoplyastaya

Reference: Patent, 10.12.2002, Kiev patent holder: Institute of Sorption and Problems of Endoecology NAS (UA)

Keywords: soil, decontamination, plant

Abstract: The invention relates to environmental protection, in detail, to decontamination of soil affected by disaster at a nuclear power plant. The method includes growing of radiation-sorbable plants on soil, which has absorbed radionuclide materials, removal of the plants and their further utilization. The sort of plant utilized depends on the sort of the contaminating material. As sorbent material, is applied.

URL: http://www.findpatent.ru/patent/219/2194319.html

Migration of 137 Cs in forest ecosystems, pollution as a result of the Chernobyl disaster

 

Author:  Maradudin I.I.

Reference: journal “ЛЕСНОЙ ВЕСТНИК“ (Bulletin of Moscow State University of Forestry ), 2005

ISSN: 1727-3749

DOI:

Keywords: migration, 137cs, biogeocenoses, soil, plants

Abstract: Migration of 137cs in forest biogeocenoses. Observes the migration in three different conditions:  Bio morphogenetic properties of forest structures, fertility and moisture level of forest soils. Observes soil and plants.

URL: http://elibrary.ru/item.asp?id=11528755

ACCUMULATION OF CAESIUM-137 IN NATURAL AND AGRICULTURAL GRASS ECOSYSTEMS ON RADIOACTIVE CONTAMINATED TERRITORY OF TULA REGION

Author: Romantsova N.А., Paramonova Т.А.

Reference: journal “XXI ВЕК: ИТОГИ ПРОШЛОГО И ПРОБЛЕМЫ НАСТОЯЩЕГО ПЛЮС” (XXI CENTURY: PAST AND PRESENT PROBLEMS PLUS), 2012

ISSN: 2221-951x

DOI: 57.045:57.042

Keywords: 137cs, agricultural products, accumulation, soil

Abstract: The investigation of accumulation levels of 137Cs in biomass of main field crop rotation cultures (wheat, barley, potato) and of meadow ecosystems in -Plavsk radioactive spot of Tula region demonstrated that at density of radioactive pollution of soils ~200-430 кBq/m2(5-12 Ki/km2) green parts of plants accumulate 0,01-0,02 кBq/m2, and underground parts œ 0,1-3,3 кBq/m2. Accumulation 137Cs in biomass depends on biological features of vegetation, and also is in close direct dependence with accumulation of 137Cs in soils.

URL: http://elibrary.ru/item.asp?id=18202241

NATURAL AND TECHNOGENIC RADIONUCLIDES IN SOIL PLAVSK RADIOACTIVE SPOT OF TULA REGION

 

Author:  Romantsova N.А.

Reference: Gazette “XXI ВЕК: ИТОГИ ПРОШЛОГО И ПРОБЛЕМЫ НАСТОЯЩЕГО ПЛЮС” (XXI CENTURY: PAST AND PRESENT PROBLEMS PLUS), 2012

ISSN: 2221-951x

DOI: 57.045:57.042

Keywords: natural and technogenic radionuclides, 40k, 232th, 226ra, 137cs, Tula region

Abstract: The modern radiating background of the Plavsky radioactive spot of Tula region is formed at the expense of natural (40К,232Th,226Ra) and technogenic radionuclides (137Cs). Thus the share 137Cs from the general stocks of radionuclides in soils makes 48-67 %, and as a part of vegetative production œ only 5-14 % that reveals insignificant parameters of transition of an element from soils in plants.

URL: http://elibrary.ru/item.asp?id=18202229

The Effects of Non-human Species Irradiation after the ChNPP Accident (English)

Author: Geras’kin S. A., Fesenko S. V., Alexakhin R. M.

Reference: ScienceDirect, 2008

ISSN:

DOI: 574.415:539.1.04:[614.876:631.03958]

Keywords: soil, contamination, plants, animals, dose-effect relationship

Abstract: The area affected by the Chernobyl Nuclear Power Plant accident in 1986 has become a unique test site where long-term ecological and biological consequences of a drastic change in a range of environmental factors as well as trends and intensity of selection are studied in natural settings. The consequences of the Chernobyl accident for biota varied from an enhanced rate of mutagenesis to damage at the ecosystem level. The review comprehensively brings together key data of the long-term studies of biological effects in plants and animals inhabiting over 20 years the Chernobyl NPP zone. The severity of radiation effects was strongly dependent on the dose received in the early period after the accident. The most exposed phytocenoses and soil animals’ communities exhibited dose dependent alterations in the species composition and reduction in biological diversity. On the other hand, no decrease in numbers or taxonomic diversity of small mammals even in the most radioactive habitat was shown. In a majority of the studies, in both plant and animal populations from the Chernobyl zone, in the first years after the accident high increases in mutation rates were documented. In most cases the dose–effect relationships were nonlinear and the mutation rates per unit dose were higher at low doses and dose rates. In subsequent years a decline in the radiation background rate occurred faster than reduction in the mutation rate. Plant and animal populations have shown signs of adaptation to chronic exposure. In adaptation to the enhanced level of exposure an essential role of epigenetic mechanisms of gene expression regulation was shown. Based on the Chernobyl NPP accident studies, in the present review attempts were made to assess minimum doses at which ecological and biological effects were observed.

URL: http://www.utm.utoronto.ca/~w3bio/bio464/lectures/lectures_assets/ChernobylEffectsonNonhumans.pdf  (full dissertation in English available online)

Genetic Effects in Plant Populations in the Zone of the Chernobyl Accident

Author: Abramov VI, Rubanovich AV, Shevchenko VA, Shevchenko VV, Grinikh LI.

Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2006

ISSN: 0869-8031

DOI: 582:539.1.04 [577 21+575]

Keywords: genetic mutation, plant

Abstract: During 6 years, starting from 1986, the monitoring of the dynamics of the frequency of embryo lethal and of chlorophyll mutations was carried out in arabidopsis populations in areas with different levels of radioactive contamination by the Muller embryo-test in the 30 km of ChNPP. The dose rate of chronic irradiation in the examined areas varied from 0.014 to 17 nA/Kg. Monitoring of the dynamics of the mutation process in natural arabidopsis populations showed the correlation between the level of the mutation process and the dose rate of chronic irradiation. The genetic effects of different levels of radioactive contamination were estimated by determining the frequency of mutations occurred in this generation and by calculating the dose of irradiation of one was found. That the dependence of the mutation frequency on the dose of irradiation presents a power function with a power index less 1, which suggests a higher efficiency of low radiation doses per unit dose. Possible explanations of this phenomenon are considered in the work. The studies of cytogenetic effects in chronically exposed Crepis tectorum populations in the zones of the Chernobyl accident showed that starting from the second year after the Chernobyl disaster there appeared plants with an altered karyotype and their frequency of chromosome aberrations correlates in root meristem cells.

URL: http://www.ncbi.nlm.nih.gov/pubmed/16869157

Dose estimation to woody plants in the long term after the Chernobyl accident // Radiation Biology. Radioecology. 2008. V. 48.

Author: S.I. Spiridonov, S.V. Fesenko, S.A. Geras’kin, V.M. Solomatin, E.I. Karpenko

Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2010

ISSN: 0869-8031

DOI: 10.1134/S086980310804005X

Keywords: load of radionuclides in pine trees, dose of exposure, dosimetric models

Abstract: Dosimetric models are designed to assess the exposure dose of woody plants

growing in areas contaminated by long-lived radionuclides. The models are parameterized using data obtained in experimental plots in the south-western districts of the Bryansk region affected by radioactive fallout from the accident at the Chernobyl nuclear power plant. Estimates the dose of exposure in the generative organs of pine trees located in these areas. Describes content of various sources and types of ionized radiation in the formation of loads of radionuclides in the specified objects.

URL: http://elibrary.ru/item.asp?id=11036091

Method of the Quantified Complete Estimation of Soil Properties for Prediction of Radinuclide Accumulation by Plants

Author: Prister B. S., Biesold H., Deville-Cavelin G.

Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2003

ISSN: 0869-8031

Keywords: plant, accumulation, estimation method

Abstract: A method is founded on consideration of soil as three-phase system where soil solution reaction (pH), absorbing capacity (E) and content of organic matter (OM) are the main characteristics. The method of complete estimation of soil properties (CESP) for quantified analysis of radionuclide soil-to-plant TF dependence on soil properties is grounded and proposed. The area of an effective section (relative units)2 calculated as an area of the triangle with apexes lying in co-ordinates of normalised vectors pH, E and OM in three-dimensional space for complete estimation is used. It is shown that the dependence of Cs TF to various crops on CESP can be approximated by equation of power law.

URL: http://elibrary.ru/item.asp?id=17326259

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