为了快速准确圈定潜在室内高氡浓度风险区域和筛选室内氡调查范围，最方便快捷的方法是基于航空伽马能谱数据、数字地质图等资料进行氡潜势填图。我国应用航空放射性和土壤地球化学数据进行氡潜势填图处于初级阶段。本项目以南方铀矿密集区和燕山期花岗岩广泛出露区为研究对象，针对以前基于航空伽马能谱测量资料进行氡潜势填图中土壤氡扩散系数和对流速度等关键参数缺少实验数据等关键问题展开研究。采用结合现场实测土壤氡浓度和氡析出率、土壤气体渗透率研究铀当量含量估算土壤氡浓度方法，利用航空全谱数据研究氡异常甄别和分类方法技术，研究航空伽马能谱氡潜势预测模型，初步建立基于伽马能谱数据和GIS技术的氡潜势填图方法，为我国建立快速氡填图方法技术体系和编制大面积氡地质潜势图奠定理论基础和有效方法指导,为我国城镇化规划部署中避免将新的人口密集住宅区建设在高氡潜势区域、为下一轮我国室内氡调查区域的快速筛选提供有价值的参考资料。

In order to delineate the areas of radon risk with indoor radon high concentration and screen these regions of indoor radon survey rapidly and accurately, the most convenient way is mapping radon potential map based on the data from airborne gamma spectrometry, digital geological map data and so on. The application of airborne radiometric and soil geochemical data for radon mapping in China is just in the early stages. Uranium enrichment zone and extensive outcrops of Yanshanian granitiods in the southern China chosen as research areas in this project, and we focus on radon diffusion coefficient and convection velocity, which are the key parameters for radon mapping based on airborne radiometric data and they were no field experimental data in previously radon potential mapping by airborne gamma-ray spectrometry data. Studying on the methods of estimating the soil radon concentration according to uranium equivalent content calculated from the data airborne radiometric data, based on the data of radon survey of soil radon measurement, radon exhalation rate and soil gas permeability in the field; identifying and classifying radon anomaly, and researching radon potential model based on the full gamma-ray spectrum data. Radon potential mapping methods will be established combined with airborne full spectrum data and GIS. This project will provide a theoretical basis and give good guidance for quickly radon mapping methodology and compiling radon geological potential on large scale, and provide valuable reference materials for avoiding building a new densely populated residential area within a high radon potential region and rapidly screening the areas of indoor radon survey.