通过Ｃｕ、Ｐｂ、Ｚｎ、Ｃｄ、Ｎｉ、Ｃｏ的沉积物加标实验以及膜渗透平衡交换间隙水采样技术，探讨了间隙水中重金属浓度对不同加标量的沉积物化学响应关系和重金属在沉积物—间隙水两相间的地球化学分配机制。研究结果表明：在硫化物存在条件下，重金属在固、液两相间的分配主要受酸溶硫化物（ＡＶＳ）影响，ＡＶＳ决定了沉积物中重金属的化学活动性，ＡＶＳ归一化沉积物中二价有毒金属可作为预测和评价重金属化学分配行为的有效方法 Through the sediment spike tests of Cu, Pb, Zn, Cd, Ni and Co, as well as the sampling technique of membrane osmotic equilibrium exchange interstitial water, the relationship between the heavy metal concentrations in interstitial water and the chemical compositions of sediment- Geochemical mechanism of interstitial water distribution. The results show that under the condition of sulfide, the distribution of heavy metals in solid and liquid phases is mainly affected by acid dissolution sulfide (AVS), AVS determines the chemical activity of heavy metals in sediments, and the AVS normalized sediments Bivalent toxic metals can be used as an effective way to predict and evaluate the chemical distribution of heavy metals