快速城市化条件下徐州市区岩溶地下水总硬度变化分析

近20年来，徐州市社会经济发展迅速，城市规模不断扩大，对地下水环境的影响十分突出。总结和分析多年来水质监测资料，徐州市区岩溶地下水总硬度呈现逐年升高的趋势。综合分析地理环境、地表环境、水文地质环境、大气环境，环境污染及对地下水的过量开采等人为因素是造成岩溶地下水总硬度升高的主要因素，并提出了对策建议。

Analysis on Total Hardness of Karst Groundwater in Xuzhou City under High-Speed Urbanization

During the last 20 years, Xuzhou has made great progress in development of the society and economy, and the city area extends outward continuously. This has exerted big pressure on groundwater environment. Based on the monitoring data of karst water quality in Xuzhou city for many years, it is found that the concentration of total hardness is serious and become aggravated every year. With analysis of topographic, surface environmental, groundwater level and groundwater distribution, the deterioration of the surface environmental quality and excessive mining of karst water are the principal factors which cause the increase of the total hardness. It also provides the relevant suggestions for the prevention and treatment of pollution.