2023 Kunshan river and lake health assessment

The assessment of river and lake health is a crucial aspect of waterbody management and serves as an important measure for evaluating the effectiveness of the river and lake chief system. This study focuses on the health assessment of two rivers (Qingyang Port and Changqianlu Port) and five lakes (Wangyang Lake, Changbaidang, Mingjingdang, Tianhuadang, and Dianshan Lake) within Kunshan City in 2023. The assessment is conducted seasonally across four major categories: natural ecology, service functions, disturbance levels, and management effectiveness. Twelve indicators are selected from each of the four criterion layersbasin, water, biological, and social service functionsto evaluate the health of the rivers and lakes. The results indicate an overall excellent health status of the rivers and lakes. Furthermore, key influencing factors are analyzed, health issues are summarized, and relevant recommendations are proposed.