Geochemical characteristics of soil fluorine in central area of Guiyang City and its environmental quality assessment

摘要：

　　Guizhou is one of provinces where the endemic fluorine diseases are most serious in China.Soil is an important environmental factor.Therefore,to find out the soil fluorine content and geochemical distribution characteristics has important theoretical and practical significance for the soil environmental pollution improvement and prevention and control of the endemic fluorine diseases.This article researches and evaluates the environmental quality of the soil fluorine in the central area of Guiyang City and ecological environmental effects in the abnormal fluorine area with the analysis result of the multipurpose regional geochemical investigation specification (1∶250000) relating to soil,rock and crop in central area of Guiyang City and full fluorine index method.The result shows that (1) Soil in central area of Guiyang City has high fluorine content.The mean values of fluorine contents of the shallow and deep layers of soil are 1,143 mg/kg and 1,438 mg/kg respectively,which are respectively 2.39 and 2.84 times mean value of that of corresponding soil layer in China and the spatial distribution has a big change;(2) The fluorine content of different types of soil has a big change.The purple soil has the highest fluorine content (1,306 mg/kg),followed by the paddy soil.The fluorine contents of the limestone soil,skeleton soil and yellow soil have a small difference,which falls into the range of 1,099~1,167 mg/kg;(3) The soil fluorine and soil forming rock have certain succession.Meanwhile,there is certain enrichment during soil forming via rock weathering.Compared with the soil forming rock,the soil fluorine content is higher;(4) The result of the environmental quality evaluation with the full fluorine index method shows that the soil in the research area has local fluorine pollution (accounting for 13.6%) and the soil area in the guard area is larger.Therefore,the soil in the central area of Guiyang City has high fluorine content and the fluorine in the local soil is abnormal,which seriously threatens the environmental quality of the regional soil and human health.The government and science researchers shall pay sufficient attention to it.

关键词： Central area of Guiyang Soil Fluorine Geochemical characteristics Environmental quality evaluation of soil

作者: Ziping Pan Xinhong Liu Wei Meng Chaojin Li Chengzhi Yan Fang Wang Shaolin He

作者单位: GuizhouMaotai Distillery Co.Ltd.Maotai College,Renhuai,564500,China;Guizhou Academy of Geological Su GuizhouMaotai Distillery Co.Ltd.Maotai College,Renhuai,564500,China Guizhou Academy of Geological Survey,Guiyang,550005,China

会议类型: 国际会议

会议名称: The 11th International Symposium on Geochemistry of the Earths Surface(GES-11)(第十一届地球表层地球化学国际研讨会)

会议地点: 贵阳

会议语种:英文

页码: 1-6

在线出版日期: 2017-06-11（万方平台首次上网日期，不代表论文的发表时间）