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过去的百年，人类运用蓬勃发展的水利科学知识与工程技术手段，使防御与控制洪水的能力得到了空前提高． 然而，随着社会经济发展与自然环境变化，洪灾损失仍在上升，治水这一古老的问题正在变得更为复杂严峻． 新世纪之初，我国人口继续增长、城市化加速、粮食与土地需求压力加大，现有防洪能力与全社会日益提高的防洪安全保障需求不相适应的矛盾仍将加剧． 防洪减灾将更加依赖于科技进步． 本文提出我国防洪战略调整时期必将面对的若干重大问题，探讨解决问题的思路．
Over the past century, mankind has made unprecedented improvement in its ability to defend and control floods by applying the booming science and engineering knowledge of water conservancy. However, with the socio-economic development and changes in the natural environment, flood damage is still on the rise, and the ancient issue of water control is becoming more and more complicated. At the beginning of the new century, the population of our country continues to grow, urbanization accelerates, the pressure of grain and land demand increases, and the contradiction between the existing flood control capacity and the growing flood control and security guarantee needs of the whole society will continue to aggravate. Flood control and disaster reduction will depend more on scientific and technological progress. This paper puts forward some major issues that must be faced during the period of flood control strategy adjustment in our country and explores the way to solve the problems.