Figure 1.
The choropleth map of Shandong Province displays the spatial distribution of counts associated with the Yellow River corridor. City boundaries, railways, tributaries, the principal course of the Yellow River, and subsidiary lakes are marked across the province. Cities including Jinan, Liaocheng, Taian, Dongying, Binzhou, Heze, Qingdao, Yantai, and Rizhao are labelled. Darker shaded regions are concentrated along the Yellow River corridor near Jinan, Liaocheng, Taian, and Dongying, indicating higher counts ranging from 31 to 32, while eastern coastal regions show lower or zero values. A north arrow and a scale bar from 0 to 180 kilometres are included.Distribution of the quantity of water infrastructure heritage