Stduy On The Relationship Between Calcareous Concretion Soil And The Causes Of High-fluorine Groundwater In Huaibei Plain Of Anhui Province

Huaibei Plain is the main distribution area of calcareous nodules,which is also the main area of fluorin disease in China.The fluorin disease and dental caries which caused by high-fluorin distribute to the north of Jieshou-Lixin-Guzhen is on solving,which has become the main geological environment of the area.On the basis of bulk of documentation and research result before bell,the text dicuss the influence of the causes of high-fluorine groundwater after alcareous nodules have come into being.The defense discusses the four conditions of calcareous nodules,whose course is forming,distribution raea and distribution disciplinarian;on the basis of the study of high-fluorine,which sums up the causes of high-fluorine,distribution raea and distribution disciplinarian;?Fluoride and other ions get across the qualitative and quantitative analysis,?disscuse the concentration of the mechanism of influence after the formation of calcium fluoride in groundwater,? get the formation of both the role of relationship;on the basis of summarizeing the previous methods which reduces high- fluoride in groundwater,?considering regional hydrogeological conditions and other conditions,?put forward my own proposals on fathering fluorin disease which is caused by high-fluorine groundwater.