我国地域广阔,湖泊众多。这些湖泊大都位于江河的两岸或地势低洼地区,历史上就是调蓄洪水和滞涝的天然场所。但是,随着经济的发展和人口的增加,人与水争地的现象日趋激烈,大量的湖面被侵占,调蓄面积急剧减少,往往引发或加重洪涝灾害。江苏里下河地区盲目圈圩,加重了1991年的洪涝灾害就是极为典型的实例。 China has a vast territory and many lakes. Most of these lakes are located on both sides of the river or in low-lying areas. Historically, they have become a natural place for regulating floods and waterlogging. However, with the economic development and population increase, the phenomenon of people and water becoming more competitive with each passing day, a large number of lakes have been invaded and the storage area has drastically decreased, which often leads to or aggravates the flood disasters. Lixiahe area in Jiangsu blind circle Fair, aggravating the floods in 1991 is an extremely typical example.