HUKOU, July 4, 2016 (Xinhua) -- Photo taken on July 4, 2016 shows submerged trees along a dike of the Poyang Lake in Hukou County of Jiujiang, east China's Jiangxi Province. Water level at Xingzi hydrological station and Hukou station of the Poyang Lake reached 19.89 meters and 19.86 meters respectively Monday afternoon, 0.89 meters and 0.36 meters higher than the warning line respectively. Jiujiang City has initiated a Level IV emergency response. (Xinhua/Zhang Jun)