Located in the hinterland of the Yangtze River, it has the most important river lake and the most important reservoir lake in the middle reaches of the Yangtze River, Dongting Lake... Hunan plays an important role in the chess game of the protection and development of the Yangtze River Economic Belt. In recent years, Hunan has placed the restoration of the ecological environment of the Yangtze River in an overwhelming position, scientifically coordinating development and protection, and starting from "protecting the clear waters of a river", promoting the transformation of the ecological environment, industry, and opening up pattern to usher in a butterfly change. From the sewage cross flow to the lush and green summer season, the Yangtze River is vast and blue, and the two banks are lush and green in the area of the porpoise bay scenic spot in Junshan District, Yueyang, Hunan Province. Deng Tieniu, a monitor at the Lin Ge Old Patrol Monitoring Point of the Yangtze River Management Station, patrolled along the shore, stopping occasionally to listen attentively to the chirping of birds in the reed marshes, observing with a telescope, and waiting for the finless porpoise to leap out of the water. "Although it is beautiful now, it used to be a messy and famous Hualong Wharf. After the meeting, Hunan continued to carry out special renovation of the Yangtze River coastline. As of now, 42 small bulk docks along the river have been demolished and 66 docks have been upgraded and renovated; Return 7.24 km of the Yangtze River coastline, renovate 66.3 km of the Yangtze River coastline, and restore 29000 mu of the Yangtze River coastline; 35 chemical enterprises along the river, 30 of which have been closed down or relocated for renovation; A batch of problems such as direct discharge of domestic sewage and illegal sand mining that have been formed for many years have been solved. After strong rectification, the Hualong Pier has been demolished, the riverbank has been restored to green, and leisure facilities such as ecological trails have been built. The once dirty and poor Hualong Pier has become a 4A level scenic spot and a popular check-in spot on the Yangtze River. From "chemical engineering encircles the river" to green factories "smoke locks the river and sewage flows" - locals have described the scene of "chemical engineering encircles the river" in Hunan. The petrochemical industry is thriving along the river, and Yueyang, Hunan has become the largest chemical base in the central and southern regions. However, while this trillion dollar industry is rapidly developing, the issue of "chemical engineering surrounding the river" is also becoming increasingly prominent. Although chemical industry is a pillar industry in the region along the Yangtze River, Hunan spared no effort to "break its arms to survive". In 2020, it will start "customs reform and relocation" for chemical enterprises within 1km along the Kangan Line, shut down and exit extensive enterprises, and then guide enterprises that meet safety and environmental protection standards and have strong market competitiveness to move into chemical parks, which can not only closely monitor emissions, but also facilitate the formation of industrial clusters and achieve high-quality development. The Hunan Chemical and Pesticide Production Base located in Linxiang City once had 22 chemical enterprises, forming a 2-kilometer riverside chemical industry belt. In order to completely transform and upgrade, Linxiang has built a high standard green fine chemical industrial park 7 kilometers away from the Yangtze River, and completely dismantled all old factories for soil remediation. Entering the green fine chemical industry park, with bright factory buildings and orderly operation of automated production lines. Hunan Fucheng Environmental Protection Technology Co., Ltd. has completed the process technology and equipment upgrade through relocation, significantly reducing energy consumption and improving production efficiency. The annual production capacity has increased from 35000 tons to 165000 tons. After the transformation, this enterprise was rated as a national level specialized, refined, and new "Little Giant" enterprise. Company directors