Why should we pay attention to the dredging of rivers, lakes and reservoirs?
There are the following important reasons for attaching importance to the dredging of rivers, lakes and reservoirs:
1. Flood prevention and disaster reduction
Long-term siltation of rivers, lakes and reservoirs will reduce storage capacity and reduce water storage and flood discharge capabilities, thus increasing the risk of flood disasters.
Dredging can improve the flood drainage capacity of rivers, ensure smooth water flow during flood seasons, and reduce the threat of floods to residents and facilities along the coast.
2. Improve water quality
Silt is usually rich in organic matter and pollutants, and long-term accumulation may cause eutrophication of water bodies, leading to massive algae reproduction and destroying the water ecological balance.
Dredging can remove these pollutants and reduce the degree of eutrophication of water bodies, thereby improving water quality and the ecological environment.
3. Restore water storage capacity
Reservoir siltation will significantly reduce the effective water storage volume and affect the rational utilization of water resources.
Dredging can restore water storage capacity and meet the water needs of agricultural irrigation, industrial production and residents.
4. Protect the ecological environment
The accumulation of silt may destroy the habitat of aquatic animals and plants, leading to a decrease in biodiversity. Dredging can restore the ecological functions of natural rivers and lakes, and create more suitable living conditions for aquatic life.
5. Waterway maintenance
Siltation of river channels will affect the depth of waterways and restrict shipping and logistics transportation.
Dredging can ensure smooth navigation of waterways and promote economic development in areas along the river.
6. Extend the life of the reservoir
Long-term desilting may render the reservoir useless or even abandoned.
Regular dredging can extend the service life of the reservoir and improve investment returns.
7. Support local economic development
The water resources and ecological environment restored after dredging can attract tourism, promote the development of agriculture and fishery, and thus drive the local economy.
8. Fighting climate change
In the context of extreme weather events caused by climate change, dredging can improve the storage capacity of water bodies and enhance their adaptability to sudden heavy rains or droughts.
Dredging is an integral part of water conservancy project management. It can not only solve short-term problems, but also lay the foundation for long-term environmental protection and economic development.
