Researches the annual change characteristics of water temperature, quality and level of the Yangtze River and the Jialing River in Chongqing district by the annual monthly testing.The results show that the water temperature of the two rivers roughly maintains constant in the vertical section, while the water of the Yangtze River is more suitable as cold and heat sources than the Jialing River, for its temperature lower in summer and higher in winter.The problem of high turbidity of the two rivers and the higher ferric ion concentration for the Yangtze River must be solved.The change of the water level of the two rivers in Chongqing district is respectively about 3.8 meters and 5.4 meters, and frequent change occures.%为研究重庆地区长江和嘉陵江江水的水温、水质、水位的年变化规律,开展了全年逐月测试.结果显示,两江水温在竖直断面上基本保持不变,相对于嘉陵江而言,长江江水温度具有夏季较低、冬季较高的特点,较嘉陵江更适合作冷热源;两江江水均要解决浊度大的水质问题,长江江水还须解决铁离子含量偏高的问题;重庆地区两江的水位变化幅度分别约为3.8,5.4 m,且变化频繁.
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