三藩、河务、漕运为清代三大国事。清庭对治黄相当重视,堵口修防不惜巨资。据清《史稿·食货志》载,全国赋税收入,乾隆、嘉庆、道光年间每年约四千余万两;光绪初,每年为八千九百余万两。河工用款之巨有时竟 San Francisco, river, water transport for the three major state affairs of the Qing Dynasty. Qing court treatment of yellow considerable attention, blocking repairs at the huge sums of money. According to “History of Manuscripts of Foodstuffs,” set forth in the national tax revenue, Qianlong, Jiaqing, Daoguang years each year about four thousand ten thousand two; Guangxu early each year more than 89 million two. River workers with huge amounts of money sometimes unexpectedly