Fig. 8: Geographic location of the study area.

a Location of Ningbo City in Zhejiang Province, China; b Land use and land cover around DQ lake56; c Topography around DQ lake and distribution of in-situ water sampling sites.

a Location of Ningbo City in Zhejiang Province, China; b Land use and land cover around DQ lake56; c Topography around DQ lake and distribution of in-situ water sampling sites.