GUANGYUAN, June 4, 2016 (Xinhua) -- The combined photo shows a man standing on the bank of Maozhou River in Shenzhen, south China's Guangdong Province, on Sept. 25, 2015 and a general view of Maozhou River on June 4, 2016. The city planned to carry out 463 projects, including the construction of 1,000 km sewage treatment pipelines and comprehensive managements of 144 rivers, to improve water-related environment quality this year, with total investment of more than 1.524 billion U.S. dollars. (Xinhua/Mao Siqian)