Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, visits Niubeiliang National Nature Reserve to learn about ecological conservation in the Qinling Mountains, northwest China's Shaanxi Province, April 20, 2020. Xi Jinping on Monday urged local officials to be guardians of the ecological environment of the Qinling Mountains during his inspection tour in northwest China's Shaanxi Province. "The illegal construction in the Qinling Mountains is a big lesson," he said. "From now on, any official working in Shaanxi should above all learn this lesson, avoid repeating the same mistake and work as a guardian of the ecological environment of the Qinling Mountains." (Xinhua/Ju Peng)