Abstract
Jinan City is the first pilot city for the Water Ecological Civilisation Project in China. The success of its ecological restoration is directly linked to achievements of construction of water ecological civilisation. For this reason, studies were performed of the temporospatial heterogeneity of the aquatic ecosystem in Jinan based on aquatic ecology data collected in field investigations from 2014 to 2015. The results show that the overall species richness in Jinan City aquatic ecosystems was higher in 2014 than in 2015 and that the community structure was more complex. Specifically, the density of Naididae and Chironomidae accounted for a high proportion of organisms in urban rivers. For fish community structure, the Cyprinidae had the largest variety and the highest density and biomass. Analysis of the primary hydrological water quality factors driving aquatic ecosystem structure showed that the overall river velocity was slow, with the exception of the main stem of the Yellow River in Jinan City. In addition, the overall total nitrogen concentration in Jinan City rivers was relatively high, and was higher in plains areas than in mountainous areas. This study can provide a scientific reference for aquatic ecological rehabilitation in Jinan City, as well as for the pilot cities program.
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