国家林业局的一份最新研究报告显示,我国平均每年消亡20个天然湖泊。大量的围垦和拦截地表水流,也使湖泊水面急剧缩减,湖区洪水出现频率升高。统计表明,在东中部地区,近50年来,我国因围垦减少天然湖泊近1000个,围垦湖泊面积相当于五大淡水湖面积 A recent study by the State Forestry Administration shows that on average, China loses 20 natural lakes each year. A large number of reclamation and interception of surface water, but also drastic reduction of lake water, lake floods appear more frequently. Statistics show that in the central and eastern regions, in the past 50 years, China has reduced the number of natural lakes by nearly 1,000 because of reclamation, and the area of ​​reclaimed lakes is equivalent to the area of ​​the five major freshwater lakes