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ASSESSMENT METHOD The specific activity of cesium-137 in plant resources FORESTS
ASSESSMENT METHOD The specific activity of cesium-137 in plant resources FORESTS
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机译：评估方法铯137在植物资源森林中的比活
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摘要
A method of estimating the specific activity of Cs-137 in the forest plant resources includes bookmark test areas, selecting samples of soil and forest vegetation, their sample preparation, measurement of specific activity in selected samples, evaluation of soil contamination density and coefficients of radionuclides from the soil to the vegetation, characterized in that a preliminary step creates regional radioecological base consisting of transition coefficients (KP) of cesium-137 radionuclides from the soil into the specific types of plant resources, and ravochnyh coefficients (PC) to the results of field measurements of soil contamination density portable spectrometer, depending on the nature of the distribution of anthropogenic cesium in the soil profile and its properties by tabs plots considering the list of economically valuable (food, medicine, engineering, indicator species for ecological monitoring ) species of plant resources, a range of growing conditions resources (types of forest growing conditions) and the area occupied by these terms and conditions in the region; estimation of spatial inhomogeneity of soil contamination by Cs-137 on test area portable gamma spectrometer routing method gridded survey results; determining the PC within homogeneous sections during shooting points Bookmarks portable spectrometer with a further selection of samples of soil standard cylindrical sampler to a depth of 20 cm of soil division cores on pyatisantimetrovym layers for laboratory gamma spectrometric measurement (calculation formula correction coefficients
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