安徽农业科学2011，Vol.39Issue(30)：18582-18584,3.
珠三角土壤238U·226Ra·232Th和40K含量水平研究
Studies on 238U,226Ra,232Th and 40K levels of Topsoils in Pearl River Delta Zone
摘要
Abstract
[Objective]The research aimed to investigate the content and the distribution of natural radionuclide in the soil. [Method] The natural radionuclide (238U,226Ra,232Th and 40K) concentrations in 796 soil samples were deteimined from the Pearl River Delta Economic Zone,using high resolution γ-ray spectroscopic system based on the characteristic spectral peaks. [Result]The mean activity values for 238U,226Ra,232Th and 40K were found to be 142.4,135.9,196.9 and 670.2 Bq/kg, respectively. [Conclusion] The contents of natural radionuclides in soil of Pearl River Delta Economic Zone were higher than the national background content,and the contents of uranium and thorium in the most of the soil were higher.关键词
土壤/放射性核素/天然放射性/珠江三角洲经济区Key words
Soil/Radionuclide/Natural radioactivity/Pearl River Delta Economic Zone分类
农业科技引用本文复制引用
富英杰,宋刚,陈迪云,冯颖思..珠三角土壤238U·226Ra·232Th和40K含量水平研究[J].安徽农业科学,2011,39(30):18582-18584,3.基金项目
国家自然科学基金面上项目(40872201,40502030). （40872201,40502030）
