摘要
用数理统计的方法推导水质矿化度与电导率的回归方程，并绘制其关系曲线。经测定，新疆塔克拉玛干沙漠８４°Ｅ沿线水化学类型主要为Ｃｌ－·ＳＯ２－４－Ｎａ＋，通过推导得出，２５℃情况下，当电导率为４．５～１２ｍｓ／ｃｍ，矿化度依电导率的回归方程为：ｙ＝－０．３０１６＋０．６９３６ｘ；当电导率＜５．４ｍｓ／ｃｍ，ｙ＝－０．１７１＋０．６８３３ｘ，建立矿化度与电导率的关系后，测定地下水的电导率，即可获得待测样的矿化度，为野外考察或定点观测提供获得地下水矿化度的简便。
This paper discussed the mathematical statistical measure which was used to deduce the regression equation of mineralization degree ( y ) changing with electrical conductivity ( x ) of ground water. In Taklimakan Desert, the regression equations were y=-0 3016+0.6936x , under the condition of 25℃ temperature and 4.5￣12 ms/cm electrical conductivity; and y=0.171+0 6833x , when the temperature was 25℃ and the electrical conductivity was below 5.4 ms/cm. Thus,only with the electrical conductivity data of groundwater measured by the specialized instrument, the mineralization degree of this sample could be obtained through the regression equation. This way makes the accesses of getting the mineralization degree of groundwater convenient, speed and accurate, which suits for use in the field specially.
出处
《中国沙漠》
CSCD
北大核心
1996年第4期374-378,共5页
Journal of Desert Research
关键词
水质
矿化度
电导率
塔克拉玛干沙漠
地下水
Mineralization degree Electrical conductivity Regression equation Taklimakan Desert
