What does flood control water mean?

Flood control water refers to water conservancy work that studies and adopts various countermeasures and measures to prevent or mitigate flood disasters and ensure social and economic development according to flood laws and flood characteristics. Its basic work includes flood control planning, flood control construction, flood control project management and application, flood control (flood prevention), flood dispatching and arrangement, post-disaster recovery and reconstruction, etc. Flood control measures include engineering measures and non-engineering measures. Flood control is also an important professional discipline in water conservancy science.

After 1949, in order to reduce the threat of flood, large-scale river regulation has been started nationwide, and flood control planning has been formulated and revised and flood control projects have been carried out. By the end of the 20th century, more than 260,000 kilometers of dikes and seawalls had been built, many flood diversion projects had been built, 98 flood storage and detention areas had been opened, and rivers had been mainly regulated. More than 80,000 large and medium-sized reservoirs and more than 2,000 large and medium-sized sluices have been built.

In the early 1980s, the concept of non-engineering measures for flood control was introduced, and the construction of non-engineering measures was strengthened. More than 8,600 flood information stations have been built nationwide, and high-tech means such as computers and meteorological satellites have been used to observe and forecast floods. A series of flood control laws and regulations such as water law, flood control law, soil and water conservation law, river management regulations and flood control regulations have been formulated and promulgated.

By the end of the 20th century, a flood control system with a certain foundation had been initially established from the central government to the local governments. Seven major rivers in Liaohe River Basin, such as Yangtze River, Yellow River, Huaihe River, Haihe River, Pearl River and Songhua River, have initially established flood control systems with engineering measures and non-engineering measures as the main contents. It played an important role in resisting the actual flood.

Looking forward to the 2nd/kloc-0th century, China will constantly update the concept of flood control measures to further realize:

① Strengthen and improve the close combination of flood control engineering measures and flood control non-engineering measures.

② Improve the operation and management level of flood control projects, give full play to the comprehensive benefits of flood control projects, such as eliminating pests and promoting benefits, environment and ecology, on the premise of ensuring flood control safety, and make more contributions to the sustainable utilization of water resources.

(3) Accelerate the popularization of high technology, realize the informatization and digitalization of flood control measures as soon as possible, constantly improve hydrometeorological forecasting methods, improve the level of flood forecasting and dispatching, and make the flood control engineering system play a greater role.

(4) With the development of economy, society, science and technology, flood control measures should be continuously increased and improved to meet the growing requirements of social and economic development for flood control.

Extended data

Flood is a natural phenomenon, which often leads to the inundation of river valleys, alluvial plains, estuarine deltas and coastal areas. However, due to the periodicity and randomness of flood phenomenon, the change of natural environment and the influence of human activities, the scope and time of flooding in these areas are not only regular, but also unstable and organic.

Most of these flood-threatened areas can still be exploited by human beings, resulting in flood disasters (see floods) and flood control problems. Flooded areas often have superior conditions suitable for developing agriculture and other economic undertakings. With the development of human society, the development and utilization of floodplains are expanding day by day, and some areas have gradually become densely populated and economically developed areas.

In many countries in the world, the developed flood plain often becomes its main economic zone. For example, in Japan, the flood area accounts for 10% of the land area, more than half of the population lives, and the accumulated wealth accounts for 72%, and there is a trend of increasing concentration. Most of the Netherlands is plain, about 24% of the land is below sea level, and 80% of the land is protected by seawalls. 5% of the land in the Soviet Union is affected by snowmelt, rainstorm and ice flood, with an average annual disaster of 540-865,438+0 million mu.

About 65,438+00% of the land in China is located along rivers and lakes and in the coastal delta, and about 50% of the population lives in these areas. The output value of industry and agriculture accounts for 70% and 60% of the country respectively, and has always been the political, economic and cultural center of China. Many countries in the world have similar situations. Therefore, many countries regard flood control as the primary or main task of river management.

Baidu encyclopedia-flood control

Baidu Encyclopedia-Flood Control Measures