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在1996年夏季对岱海的综合调查基础上，结合自50年代以来关于岱海的地理学、水文学和水生生物学资料，对岱海水质咸化中的若干生态因子进行了比较分析，结果表明：目前岱海pH值为933，这已经接近生物适应范围的最上限；总碱度也逐年增长，而且增长极为明显；氯离子的含量也已经远远超过了1000mg/L的极限指标。上述变化清晰地说明，岱海的水质咸化过程正在加强。同时，钙镁比率越来越失调，水的硬度也不断增加，这些变化对渔业生产十分不利。
Based on a comprehensive survey of Daihai in the summer of 1996, and combining with the data of geography, hydrology and aquatic biology in Daihai since the 1950s, some ecological factors in the water quality of Daihai were compared and analyzed. The results At present, the pH value of Daihai Sea is 933, which is close to the upper limit of the range of biological adaptation. The total alkalinity also increases year by year, and the growth is very obvious. The chloride ion content has also far exceeded the limit of 1000mg / L. The above changes clearly show that the water quality of Daihai is being salified. At the same time, the ratio of calcium and magnesium is getting more and more imbalanced, and the hardness of water also keeps increasing. These changes are very unfavorable to fishery production.