On flood discharge

Flood discharge refers to a river or reservoir that exceeds the warning water level and will be discharged to lower the water level. Flood discharge can protect the safety of cities and farmland in the basin and avoid heavy losses after being flooded. However, flood discharge is not a complete solution. Flood discharge will affect the water ecosystem and downstream dams, so it is very important to regulate flood discharge. When there is continuous rainfall in the upper reaches, coupled with the accumulation of floods in several tributaries, the water level of rivers and lakes will rise. At this time, the flood will be discharged to a safe area manually. ?

Impact of flood discharge on ecosystem. Flood is a common natural disaster. The flood will bring the soil and nutrients from the upstream to the downstream with the flood, and also bring some wild animals to the downstream. The nutrients in the downstream lakes will gather in large quantities, coupled with the relatively warm and humid environment, plankton and plants in the water will begin to multiply in large quantities, which will lead to eutrophication of the water. Some wild animals will then enter the downstream waters and live in a limited space with local animals, which will increase the pressure on the ecosystem. Often a certain number of wild animal carcasses, mainly fish, will appear in the waters after flood discharge.

Influence of flood discharge on downstream dam. Flood discharge will be a means adopted by human beings in the face of catastrophic floods. After a large number of floods enter the downstream area, the pressure brought by the downstream dam can be imagined. If it keeps raining downstream, we can only continue to drain water into the ocean. This has a great impact on Lu Haiyang. Sediment in the flood will accumulate on the seabed, which will not only raise the height, but also have a great impact on the offshore ecosystem. Only reasonable and scientific flood discharge can reduce the impact on the ecosystem and human beings themselves, otherwise the loss will outweigh the gain.

Measures after flood discharge. In case of flood, local residents should be evacuated in an orderly manner according to the reasonable arrangements of relevant departments. When necessary, take necessary daily necessities and materials to escape, including water, food and life-saving appliances. Be careful not to try to swim and evacuate here.