A river is a natural phenomenon that is formed under specific geological and climatic conditions. It refers to a depression that is created under the influence of gravity, where water flows continuously from the highland to the lowland.

As a part of the water cycle, river water continues to be updated, providing essential services to humans and the natural world. The river is a crucial path of the hydrological cycle on the planet, and it is responsible for transporting sediment, salt, and chemical elements to lakes and oceans.

The formation of a river is influenced by several factors, including geological and climatic conditions.

The concave land formed by the crustal movement provides a place for water to flow, while atmospheric precipitation provides water to the river. Over time, the river develops under the interaction between the riverbed and water, generally involving erosion, handling, and accumulation.

The temperature of a river is mainly affected by the replenishment of water. Rivers that receive their water from glaciers and snow typically have low temperatures. Water flowing from large lakes has low temperatures in the spring and high temperatures in the autumn.

Rivers with a high volume of groundwater supply tend to have higher temperatures in winter. Other factors, such as solar radiation and watershed temperatures, can also affect the temperature of the river.

The river is a crucial resource for both humans and nature. In terms of humans, rivers provide an essential source of water, providing irrigation to farmland and drinking water to urban residents. Additionally, rivers are an important source of energy, and water energy is converted into electrical energy through hydropower stations.

In terms of nature, the river is an important part of the biosphere, providing many places for biological habitats and breeding, and contributing to the maintenance of biodiversity and the maintenance of ecological balance.

However, due to excessive development, increased population pressure in the basin, and climate change, the river system is under serious threat, resulting in the river's inability to function correctly.

Therefore, the protection and governance of rivers have become critical environmental issues that need to be addressed in today's society. Scientific governance methods can be adopted to improve the ecological environment and water quality of the river, promoting sustainable development.

The following measures can help improve the ecological environment and water quality of rivers:

1. Promoting water-saving awareness: Human water demand is increasing day by day, making it crucial to save water. Promoting water-saving awareness can reduce the demand for river water resources, thereby alleviating the pressure on rivers.

2. Increasing wetland protection: Wetlands are an important part of the river, playing a vital role in purifying water quality and maintaining the ecosystem. Strengthening the protection of wetlands can help maintain the ecological balance of the river.

3. Improving pollution control technology: In response to various pollution sources in the river, the development of efficient pollution treatment technology can effectively reduce the discharge of pollutants in the river and protect the water quality of the river.

To protect rivers, multiple aspects need to be considered. Governments, enterprises, and all sectors of society need to work together to develop a series of scientific governance measures to achieve sustainable development of the river.

By promoting awareness, increasing wetland protection, and improving pollution control technology, we can protect rivers, ensuring they continue to function correctly for generations to come.