论文部分内容阅读
我国洪涝灾害频繁。江河洪水,特别是长江、黄河等大江大河的洪水,自古以来是中华民族的心腹之患。中华人民共和国成立以来,党和政府领导广大人民群众,对大江大河进行了大规模的治理,主要江河的防洪能力有了不同程度的提高:在上游水库和蓄滞洪区的配合运用下,黄河下游防洪标准可达60年一遇;长江中下游可防御1954年实际发生的洪水位;海河南北水系可防御50年一遇洪水;淮河中下游可防御40年一遇洪水;珠江主要支流北江的防洪标准达到百年一遇;松花江、辽河干流达到20年
Frequent floods in our country. The floods of the rivers, especially the floods of the great rivers such as the Yangtze River and the Yellow River, have been the confluence of the Chinese nation since ancient times. Since the founding of the People’s Republic of China, the party and the government have led the broad masses of the people and carried out large-scale governance over major rivers. Flood control capacity of major rivers has been raised to varying degrees. With the cooperation of upstream reservoirs and flood storage and detention areas, Flood control standards up to 60 years once the case; the middle and lower reaches of the Yangtze River can be defensive in 1954 the actual flood level; Haihe River north-south water system can prevent 50 years of floods; the middle and lower reaches of the Huaihe River can prevent floods in 40 years; The standard reaches once in a century; Songhua River, Liaohe River reach 20 years