[目的]研究祖厉河的水质特性,为开发利用祖厉河提供基础数据.[方法]水样取自甘肃省会宁县祖厉河中游河畔镇河段,水样的盐度和pH在采样点测定,其他水样处理后带回实验室测定,水样的处理和水质指标的测定按国家标准操作.[结果]祖厉河中游河畔镇河段河水的pH为8.15,盐度为10.00‰,Ca2+、Mg2+、氯化物、硫酸盐、CO32-碱度、HCO3-碱度、硝态氮化合物以及磷酸盐的含量分别为453.4、380.2、3069.5、2 072.8、9.3、175.7、6.7 mg/L和52.9μg/Lo[结论]祖厉河中游的水质接近海水水质,适宜养殖海水生物.%[ Objective] To study the water quality characteristics of Zuli River and provide data for its development. [ Method] The water samples were collected from the Hepan Town section of Zuli River in Huining County of Cansu Province,and then the salinity and pH of some water samples were determined at the sampling site,while others were determined in laboratory according to the national standards. [ Result] The water pH of thia river section was 8. 15 and ihe salinity was 10.00%e,the Ca2 + concentration, Mg2+ concentration,chloride content, sulfate content, CO32- and HCO3- alkalinity, nitrate compounds content and phosphate content were respectively 453.4,380.2,3 069.5,2 072.8,9.3,175.7,6.7 and 52.9 jig/L. [Conclusion] The water quality in this river section is close to that of sea water,thus it is possible to develop the mariculture industry.
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