SHIJIAZHUANG, June 12 (Xinhua) -- A regulation on environmental protection of the upstream of the Baiyangdian Lake in Xiongan New Area, north China's Hebei Province, will be issued and put into effect on July 1, the Baoding city government said Wednesday.

The regulation concerns the environmental protection, restoration and management in the areas around nine rivers on the upstream of the lake.

To support the implementation of the regulation, the city plans to invest more than 30 billion yuan (4.3 billion U.S. dollars) in over 180 projects, mainly covering sewage treatment, air pollution control and soil contamination control, over a span of three years.

In 2019, Baoding is to invest over 5.9 billion yuan in 67 projects. Construction on these projects will start at the end of June and finish by the end of the year, said Xiao Baoyuan, director of the city's ecology and environment bureau.