2. The civilization and development of human beings are on both sides of the river, and most cities are built on both sides of the river. A river with a good ecological environment can provide safe drinking water for people along the river, rich industrial water for enterprises that increase people's income, and a beautiful living environment for local people.
Therefore, the state attaches great importance to the protection of river ecological environment and invests a lot of money, manpower and material resources every year.