Zhangze Lake National Wetland Park reopened on Wednesday in the city of Changzhi in north China's Shanxi Province. It took 10 years to restore the ecological environment and expand the park. Covering 58 square kilometers in area, the part spreads across several towns and counties. Some villages, factories and fishing ponds were relocated to give the land area back to Zhangze Lake, which has become a habitat for 168 species of birds.