Aerial photo taken on April 8, 2019 shows the scenery of Zigui port, which is located at the upper reaches of the Three Gorges Dam, in Zigui county, central China's Hubei Province. As of 9 p.m. on April 1, the outflow of the Three Gorges Reservoir was 10,600 cubic meters per second, with a water level of 165.40 meters. The total outflow of the reservoir has reached 10.02 billion cubic meters in the first quarter of 2019. (Xinhua/Zheng Jiayu)