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It is vital for analyzing groundwater chemical characteristics to develop, manage and protect groundwater resources. Hydrogeochemistry simulation, graphic method, and other methods are applied to analyze 22 pieces of groundwater chemical data in the urban area of Zhumadian City. The results show that shallow groundwater is mainly of HCO3-Ca type. Besides, from northeast to southwest, salinity and hardness increase gradually, the hydrodynamic condition becomes worse, and groundwater is significantly affected by human activities. This study is of important significance to scientifically using and managing groundwater resources in the urban area of Zhumadian City. Caracteristicas quimicas y distribucion espacial de las aguas freaticas en el area urbana de Zhumadian (China) Resumen El analisis de las caracteristicas quimicas de las aguas freaticas o subterraneas es determinante para desarrollar, administrar y proteger los recursos hidricos. Este trabajo se baso en la simulacion hidrogeoquimica, el metodo grafico y otros procedimientos para analizar la informacion quimica de 22 muestras de aguas freaticas en el area urbana de Zhumadian, en el este de China. Los resultados muestran que las aguas freaticas poco profundas son principalmente del tipo HCO3-Ca. Ademas, del noreste al suroeste, la salinidad y la rigidez aumentan gradualmente, las condiciones hidrodinamicas empeoran y las aguas freaticas son afectadas por las actividades humanas. Este estudio es de una importancia significativa para el manejo cientifico y la administracion de los recursos de aguas subterraneas en el area urbana de Zhumadian.

Chemical Characteristics of Groundwater and Its Spatial Distribution in Urban area of Zhumadian City