What is the concept of integrated river management?

Source: Zhejiang Zulu Environment Co.Release time: 2022-07-23

Urban rivers are the cradle of urban civilization, an important carrier of urban ecological environment, and play an important role in social and economic development. In recent times, the rapid development of cities has caused many pressures on urban rivers, seriously affecting the quality of life and health of residents. In recent years, the national transformation of rivers began to change into comprehensive management in terms of landscape greening, water conservancy construction, pollution prevention and treatment. The ecological concept of creating a harmonious and beautiful living environment and sustainable development has brought new life to urban development.

Industrial wastewater and domestic wastewater contain a large amount of organic matter and a mixture of various minerals, which are discharged into rivers and deposited at the bottom of water after a period of time to form silt, plus heavy rainstorms flow soil particles from the surface into rivers to form a more viscous silt. If dredging is not carried out for a long time, it will cause the river bed to be raised, flood drainage and flooding will be poor, and water supply and drought resistance will be reduced.

As water quality deteriorates and pollutants are deposited, microorganisms (bacteria) proliferate, dissolved oxygen in the water body decreases, and aquatic life decreases. Excessive artificial hardening causes a reduction in natural area, lower biodiversity and fewer species, which results in continuous degradation of the river ecosystem and a decrease in self-purification capacity.

In order to return the river ecosystem to a natural and stable state, it is necessary to start controlling the most basic environmental factors, adding the necessary artificial interventions, creating a suitable space for the growth of plants on both land and water, protecting the reproduction of river flora and fauna, and maintaining the dynamic balance of the river ecosystem.