| 中国大陆主要省份土壤中天然放射性核素含量分布规律研究 |
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| 引用本文： | 曹龙生,杨亚新,张叶,郑勇明,杨婷.中国大陆主要省份土壤中天然放射性核素含量分布规律研究[J].东华理工大学学报（自然科学版）,2012,35(2):167-172. |
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| 作者姓名： | 曹龙生 杨亚新 张叶 郑勇明 杨婷 |
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| 作者单位： | 1. 东华理工大学核资源与环境国家重点实验室培育基地,江西南昌330013;东华理工大学放射性地质与勘探国防重点学科实验室,江西抚州344000
2. 东华理工大学放射性地质与勘探国防重点学科实验室,江西抚州,344000 |
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| 基金项目： | 国家自然科学基金项目(40774075);江西省科技厅项目(2009BHA16100);东华理工大学校长基金项目(DHXK1130) |
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| 摘 要： | 综合了中国大陆28个省土壤中天然放射性核素238U,226Ra,232Th和40K含量的调查结果,分析了这些天然放射性核素含量分布现状和及其分布规律,初步探讨了引起部分省份放射性核素含量偏高的主要原因.研究结果表明,中国28个省市土壤中放射性核素238U,226Ra,232Th和40K的含量按面积加权平均值分别为39.5,36.5,49.1和580.0 Bq/kg;土壤中238U,226Ra,232Th的含量随地域的变化规律基本一致,40K含量随地域的分布规律则不显著.土壤中的天然放射性核素含量与成土母岩和铀资源分布有着明显的相关性.
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| 关 键 词： | 土壤 天然放射性核素 含量 分布规律 |
Distribution Pattern of Radionuclides in the Soil of Mainland China |
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| CAO Long-sheng
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YANG Ya-xin
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ZHANG Ye
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ZHENG Yong-ming
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YANG Ting.Distribution Pattern of Radionuclides in the Soil of Mainland China[J].Journal of East China Institute of Technology(Natural Science Edition),2012,35(2):167-172. |
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| Authors: | CAO Long-sheng YANG Ya-xin ZHANG Ye ZHENG Yong-ming YANG Ting |
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| Institution: | 1.State Key Laboratory Breeding Base of Nuclear Resources and Environment,East China Institute of Technology,Nanchang,JX 330013;2.Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense,East China Institute of Technology,Fuzhou,JX 344000,China) |
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| Abstract: | The radionuclides content of 238U,226Ra,232Th and 40K in the soil of 28 provinces of mainland China are collected.The distribution situation and pattern of radionuclides are analyzed,and the reasons of radionuclides with a high content in several provinces are discussed.Results show that the weighed mean by area of radionuclides 238U,226Ra,232Th and 40K in the soil of 28 provinces are 39.5,36.5,49.1 and 580.0 Bq/kg,respectively.The content of 238U,226Ra,232Th is accordance with spatial differentiation,whereas 40K presents no significant changes.In addition,the radionuclides show closely relationship with soil forming rock and distribution of uranium resources. |
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| Keywords: | soil radionuclides content distribution pattern |
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