The Niulan River to Dianchi Lake Water Diversion Project aims to improve water quality in Dianchi Lake. By studying the sediment near the water intake, researchers found that high turbidity in the water during flood seasons exceeded standards. They used a model to assess the impact of check dams and multi-level intakes in reducing sediment at the intake point. The study discovered that the original intake design overlooked sediment characteristics, leading to high turbidity. Check dams helped decrease turbidity but did not meet standards. However, a multi-level intake significantly reduced turbidity compared to the current method and check dams, showing promise for improving water quality in the project.