On October 31, 2002 (Lunar Calendar, September 26, 2002), Yunnan Yunnan opened the water gate. On October 31, 2002, at about 10 a.m., as Yunnan Shandong Chuan City opened the water gate, Yunnan Yunnan officially opened the water gate. This is the seventh time in the history of Yunnan River to deliver emergency water to Tianjin. Tianjin City has been in drought for six consecutive years since 1997, especially this year's Rainfall period, Tianjin City's water supply is seriously insufficient. This, the Party Central Committee and the State Council attached great importance to it, and decided to implement Yunnan Yunnan again.