乐山古城历代水患与防洪措施研究

Study on Historical Flood Disasters and Flood Control Measures of Ancient Leshan City

文中分析了乐山古城选址的四利和一弊，其中的一弊即不利于防洪。通过对历史上乐山古城洪灾的统计和采取的防洪措施的分析研究，认为这些措施是有效的。民国38年间有七次洪灾，是由于古城防洪的城、堤破败而又无维修，外城又被拆毁之故。乐山古城防洪的历史经验可供我们参考、借鉴。

This paper explores the historical flood disasters and flood control measures of Ancient Leshan City. It analyses the site selection of Leshan and comes to the conclusion that there are four advantages and one disadvantage regarding the site selection, with the disadvantage being unfavorable for flood control. Through the statistics and analysis on historical flood disasters, the flood control measures are proven effective. There were seven times of urban flood disasters in Leshan during the period of the Republic of China （1911-1949）, which were caused by that the city walls and dykes were dilapidated without maintenance and the outer citywalls were demolished. The historical experience against flood disasters of Leshan can be used for our reference today.