基于ArcGIS的辛安泉地下水水质评价研究

针对山西省第二大岩溶泉——辛安泉地下水水质的污染程度及空间分布问题,实地采集到辛安泉水源地24个采样点的水样,首次利用ArcGIS的地质统计分析功能,选择反距离加权插值方法,并对其结果进行分析。得出了辛安泉水质单项指标评价图和综合指标预测图,从时间、空间上对该泉域的水质作出综合评价:时间上,水质均出现从优良到较差再到优良的过程;空间上,污染区域大体呈现向东扩散的趋势。研究成果可为泉域今后的规划治理和实行具体的水资源管理措施提供一定的理论依据。

ArcGIS-Based Assessment of Groundwater Quality of Xin' an Karst Spring

Aiming at the groundwater pollution and spatial distribution in Xin’an karst spring,Shanxi’s second largest karst spring,we collected water samples from 24 sampling sites to assess the water quality. With the Geostatistical Analysis function of ArcGIS,the result of the water quality data was analyzed by the method of inverse distance weighted interpolation. Finally,diagrams of single index and comprehensive indexes of water quality assessment were obtained. The water quality in the spring area was comprehensively assessed in terms of time,water quality experienced a variation from fine to poor then to fine; and in terms of space,the contaminated area generally tended to spread to the east. This research provides theoretical basis for the future regulation and management of the spring area.