我国是一个洪水灾害频繁的国家,建国以来虽大力进行了江河治理和兴修防洪工程,但江河防洪标准仍然较低,与世界各国一样,还不能控制特大洪水。今后,经济建设越发展,洪水灾害造成的损失将越大。为了保障防洪安全,保证四化建设的顺利进行,必须继续提高江河防洪能力,重点兴建一批具有较大防洪效益的水利枢纽工程。同时还应看到,工程措施只能防御一定标准的洪水。由于我国洪水具有峰高量大或突发性强等特点,要求通过修建防洪工程完全避免洪水灾害,从经济效益的合理性和兴建工程的可行性来说,都是不现实的,也难以做到。因此,必须执行工程措施和非工 China is a country with frequent flood disasters. Since the founding of the People’s Republic of China, great efforts were made to harness and rehabilitate flood control projects. However, flood control standards in rivers and rivers are still relatively low. Like other countries in the world, flood control can not be controlled. In the future, the more the economic construction will develop, the greater will be the flood damage. In order to ensure flood control security and ensure the smooth progress of the four modernizations, it is imperative to continue to improve the flood control capability of rivers and floodplains, and focus on the construction of a number of water conservancy hub projects with greater flood control benefits. At the same time, we should also see that engineering measures can only prevent certain standard floods. Because floods in our country have such characteristics as high peak heights or sudden emergencies, it is unrealistic and difficult to do so by requiring that the flood disaster be completely avoided through the construction of flood control projects, and the reasonableness of economic benefits and the feasibility of constructing the project To Therefore, engineering measures and non-work must be implemented