针对伊利诺伊河流域的Emiquon区域以及肖托夸湖泥沙淤积问题。运用CHHMS耦合模型（Coupled Hydrology and Hydraulics Model System）对研究区域在不同泄洪开口组合的泥沙分布进行模拟，并根据不同流速状态下的颗粒流线图进行模拟得到沉淀物分布状况，结合湿地植物及鱼类生长需求对结果进行分析。研究发现CHHMS耦合模型在河流生态修复的模拟运用中具有很高的可开发性和实用性，经过模型模拟得到研究区域的合理规划方式，并且在成功利用河流到蓄滞洪区开口的情况下，水量以及泥沙沉淀物得到有效的控制，植被得到恢复，湿地的生态状况得到有效的改善。
英文摘要:
According to sediment deposition problem of the Illinois River Basin Emiquon region and the Chautauqua lake, the CHHMS coupled model (Coupled Hydrology and Hydraulics Model System) was used to simulate the sediment distribution in the study area under different combinations of flood discharge openings，and according to the particle flow chart under different flow rates, the distribution of sediment was obtained. The results were analyzed according to the growth requirements of wetland plants and fishes. The study found that the application of CHHMS coupled model in river ecological restoration has high exploitability and practicability. Through model simulation, the reasonable planning way of the study area was obtained, and with the successful utilization of the opening of the flood storage and detention area, the water and sediment were effectively controlled, the vegetation was restored, and the ecological status of wetlands was improved effectively.