Surface soil radon could reflect deep underground hydrology, geology, mineral resources, heat source and other information, but the soil radon concentration has diurnal and annual variation characteristics. In order to study this problem, the authors used α spectroscopic cumulative radon instrument for continuous measurement. The results show that the law of soil radon concentration diurnal variation is of the single-peak type, the maximum value appears at the time interval of 19:00-22:00, with the minimum value at 11:00-14:00. Soil temperature is the key factor affecting the soil radon concentration, which is positively correlated with soil temperature. Rainfall has significant effects on soil radon concentration, which assumes double peak type after rain. The changes are related to meteorological factors such as soil humidity and air temperature.
汪栋, 方方, 丁卫撑, 石慧. 土壤氡浓度日变化影响因素研究[J]. 物探与化探, 2014, (3): 485-489.
Wang Dong, Fang Fang, Ding Weicheng, Shi Hui. A study of influencing factors of diurnal variation of the soil radon concentration. Geophysical and Geochemical Exploration, 2014, (3): 485-489.
[1] 陈希泉,陈颉,罗先熔,等.地气(氡气)测量方法寻找隐伏含矿断裂试验[J].物探与化探,2011,35(6):817-820.[2] 姚锦其,赵友方.氡气测量在栗木锡铌钽矿外围的找矿效果[J].物探与化探,2009,33(3):286-289.[3] Miklavcic,Radolic V,Vukovic B,et al.Radon anomaly in soil gas as an earthquake precursor[J]. Applied Radiation and Isotopes,2008,66:1459-1466.[4] 石玉春,徐英凤,马宏伟,等.土壤氨浓度随气象因素变化规律及其应用[J].中国科学:B辑,1994,24(11):1190-1196.[5] 刘庆成.环境氡理论与应用研究[D].北京:北京科技大学,1998.[6] 梅爱华,朱立.土壤氡浓度随季节变化规律[J].山西建筑,2007,33(3):325-326.[7] 丁卫撑.基于扩散累积原理壤中氡α能谱测量系统研究[D].成都:成都理工大学, 2009.[8] 李伟,刘鸿福,张新军,等.低射气介质地区浅部土壤氡气迁移规律研究[J].原子能科学技术,2013,47(2):312-316.[9] 林依再.土壤氡气异常特征与台湾南投7.6级地震[J].地震研究,2001,24(4):321-325.[10] Fabio Vizzini,Maria Brai. In-soil radon anomalies as precursors of earthquakes: a case study in the SE slope of Mt. Etna in a period of quite stable weather conditions[J].Journal of Environmental Radioactivity,2012,113:131-141.[11] 米秋霞,刘快胜,张春芳.土氡测量在地质灾害勘测中的干扰实验研究[J].灾害学,1996, 11(2):47-52.[12] 宋志伟,张宝生.植物生产与环境[M].北京:高等教育出版社,2006:171.[13] Manwinder Singh,Ramola R C,Baljinder Singh,et al.Subsurface soil gas changes associated with earthquakes[J].Nucl Tracks radiat,1991,19(4):417-420.