大坝坝址地下水质监测网优化分析

应用对应分析方法处理地下水质资料,得出研究区地下水具有如下三种类型:(1)低矿化的弱碱性水;(2)相对高矿化的碱性甚至强碱性水;(3)介于上述两者之间。并由反馈信息得出,现有水质监测点似多了些。根据具体的水质特征,遵照反映不同水环境的监测点应保留、而反映相同或相似水环境的监测点应精简这一原则,对现有水质监测网作了优化分析。新的水质监测点数虽少于原有的,但只要定期的监测,仍能够反映原有水质监测网所能反映的主要信息。

Optimization of Monitoring Network of Groundwater Quality around Dam-Site

A correspondence analysis method is applied to dealing with groundwater quality data.It is shown that the groundwater in the research area can be classified as follows:(1)weak alkalinity with low TDS value;(2)strong alkainity with relatively high TDS value,and(3)interg rade between(1)and(2)above mentioned. According to the feed-back information,the existing ground-water quality monitoring points seem to be more than necessary.The optimal analysis is made on the basis of the detailed water quality types,TDS values and the related water-environment characteristics.Although the water quality monitoring points are less than before,they can still reveal the main information from the existing ones,by regular monitoring.