The assessment of ecosystem service functions is one of the focused area in modern ecological and environmental research. As a typical shallow macrophytic lake in China, Nansi Lake is selected as the study area. Based the indicator system and assessment models established in this research, the ecosystem service functions of Nansi Lake are assessed. The results show that the ecosystem service funtion of drinking water source area/aquatic product supply/ecological habitat/entertainment and landscape/ water purification function of the lakeside zone for Nansi Lake is assessed as medium (2.2)/good (3.5)/medium (3)/medium (2.55)/medium (3), and the overall ecosystem service function of Nansi Lake can be considered as ―Medium‖. The eutrophication control and ecological restoration of lakeside wetland need to be enhanced in the future.
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