In early April, Gansu was cool and full of green, and the mountains were full of flowers. Early in the morning, the Nanshan Ecological Park in Kongtong District has welcomed many citizens, who are in groups of three or five, some singing loudly, some exercising, and some holding children to laugh and play. "Especially on weekends, more than 10,000 people go up the mountain every day. "Following in the footsteps of Wang Huaiyi, Secretary of the Party Leadership Group and Director of the Ecologica