2003in 2019, dongjiang city established the grand canal comprehensive management command in order to revive the grand canal culture and help the grand canal apply for world heritage. lu changhe, a grassroots cadre, was recorded by the command center for exception. eee。 with the help of division commanders, friends, leaders, etc., lu changhe withstood the pressure and successfully coordinated the relocation of the large polluter guangming printing and dyeing factory, which made a beautiful start for the canal management. soon, lu changhe found that a company secretly discharged sewage into the canal. after a competition, the company adopted lu changhe's suggestion and built a sewage treatment plant to fundamentally solve the problem of sewage pollution to the river. lu changhe was put into the relocation project of residents in the historical district along the canal. he communicated with the residents patiently and finally allowed all residents to sign the relocation agreement with confidence. the long river behind him has been struggling to the front line of canal management, and devoted all his limited energy to the cause of canal rejuvenation. he successfully blocked the demolition project of the ancient building in wuzhen, a thousand-year-old ancient town, and protected the thousand-year-old ancient charm on both sides of the canal. at the 38th world heritage conference in 2014, the grand canal was successfully applied for heritage and was included in the world heritage list.