Why should Danjiangkou protect water?

The reasons why Danjiangkou should protect water are as follows:

1. danjiangkou city is the core water source area of the Middle Route of South-to-North Water Transfer Project, and saving water is the primary political responsibility of danjiangkou city.

2. danjiangkou city regards serving the South-to-North Water Diversion Project as the top priority for the people of the city. In order to ensure the clear water from one river to the north, more than 60 polluting enterprises have been shut down and rejected, and environmental protection measures such as returning farmland to forests, planting trees, returning farmland to grassland and relocating immigrants have been implemented, which has made great contributions to this project.

3. danjiangkou city continues to deepen the concept of "co-creation", give full play to the role of grass-roots party organizations as fighting bastions and the vanguard and exemplary role of party member, guide the whole city to focus on water conservation and protection in terms of ideological recognition, cooperation in action and measures, and strive to create a new water capital with green and low-carbon development.

The importance of water

Adult body fluids are composed of water, electrolytes, low molecular organic compounds and protein, which are widely distributed in tissues and cells, forming the internal environment of human body. Intracellular fluid accounts for about 40% of body weight, and extracellular fluid accounts for 20% (including 5% plasma and 15% interstitial fluid).

Water is an essential substance for substance metabolism. Cells must absorb nutrients from tissue fluid, and nutrients can only be fully absorbed if they are dissolved in water. Intermediate products and general end products of substance metabolism must also be transported and eliminated through interstitial fluid.

On the earth, water that can be directly or indirectly used by human beings is an important part of natural resources. Natural water resources include river runoff, groundwater, snow and glaciers, lake water, swamp water and seawater. According to water quality, it is divided into fresh water and salt water. With the development of science and technology, the water used by human beings has increased, such as seawater desalination, artificial catalytic precipitation, and the utilization of Antarctic continental ice.

Due to the change of climatic conditions, the spatial and temporal distribution of various water resources is uneven, and the amount of natural water resources is not equal to the available water. Reservoirs and underground reservoirs are usually used to regulate water storage sources, or to recycle and treat industrial and domestic sewage to expand the utilization of water resources.

Different from other natural resources, water resources are renewable and can be reused. Moreover, the annual and inter-annual quantitative changes have certain cycles and laws; The storage form and movement process are influenced by natural geographical factors and human activities.