Beijing, July 17 (Youth.cn) -On July 16th, 2023, at Longtan Park in Xuecheng District, Zaozhuang City, Shandong Province, the blue sky, green trees, white clouds and city buildings constitute a natural landscape painting. In recent years, the local government has strengthened the governance of urban and rural living environment, promoted the construction of water environment, and continued to improve the urban and rural ecological environment.