长江中下游地区地下水中化学元素的背景特征及形成

THE BACKGROUND FEATURES AND FORMATION OF CHEMICAL ELEMENTS OF GROUNDWATER IN THE AREA OF THE MIDDLE AND LOWER BEACHES OF THE YANGTZE RIVER

本文论证了长江中下游地区地下水中钾、钠、钙、镁、硅、铁、锰、铬、镍、钒、钴、钛、钼、铜、铅、锌、砷、汞、镉、铍、锂、锶、硼、氟、氯、溴、碘的背景特征、形成及分布规律,探讨其与地下水的含水介质成分,上覆岩土性质、氧化还原环境、地下水的径流条件和矿化度以及地下水的酸碱度之间的关系。

This paper deals with the background features, formation and distribution of chemical elements K, Na, Ca, Mg, Si, Fe, Mn, Cr, Ni, V, Co, Ti, Mo, Cu, Pb, Zn, As, Hg, Cd, Be, Li, Sr, B, F, Cl, Br and I in groundwater in the area of the middle and lower reaches of the Yangtze River and the relations of the composition of the hydrous media in groundwater, quality of the overlying rock and soil, environment of oxidation and reduction, run-off conditions and salinity of groundwater and pH values of groundwater.