今年汛期，我国东北和长江中游地区发生了自１９５４年以来最大的洪涝灾害，影响和损失都是巨大的。洪涝灾害的形成与气候异常（主要是降水分布异常）、海水水位偏高、水利设施等级不够等多种客观因素有关，但是不能不承认，我国洪涝灾害之所以发生频率提高，时间延长、危... This year’s flood season, the largest flood disaster in China since 1954 occurred in the northeastern region of China and in the middle reaches of the Yangtze River. The impact and losses are huge. The formation of floods and climatic anomalies (mainly the distribution of anomalies), the sea water level is too high, inadequate levels of water conservancy facilities and other objective factors, but can not be admitted that the reason why China’s flood disaster occurred more frequently, the time is prolonged and dangerous. ..