What is the best picture of the water cycle in nature? And how to solve the water pollution problem?

1, the natural water circulation process is as follows:

Water cycle is a multi-link natural process. The global water cycle involves evaporation, atmospheric water vapor transport, surface water and groundwater circulation, and various forms of water storage and precipitation, evaporation and runoff are the three most important links in the water cycle.

Evaporation is one of the most important links in the water cycle. The water vapor produced by evaporation enters the atmosphere and moves with atmospheric activities. The water vapor in the atmosphere mainly comes from the ocean, and some of it comes from the evaporation on the continental surface. The circulation of water vapor in the atmosphere is a cycle process of evaporation-condensation-precipitation-evaporation.

Water vapor over the ocean can be transported to condense precipitation over the land, which is called external water vapor precipitation; The direct condensation precipitation of water vapor over the mainland is called internal water vapor precipitation. The ratio of total precipitation to external water vapor precipitation in a place is called the water cycle coefficient of that place. The global atmospheric water exchange cycle is 10 day. Water vapor transport is one of the most active links in the water cycle.

There is also a small amount of Atlantic water vapor from prevailing westerly winds and eastward cyclones in the northwest inland area.

The water cycle on land is a complex process of precipitation-surface and underground runoff-evaporation. The exchange of atmospheric precipitation, surface runoff and underground runoff on land is also called three-water transformation.

The movement of groundwater becomes atmospheric moisture through evaporation and transpiration of soil and vegetation; Groundwater can be replenished by infiltration; It can become a part of rivers, lakes and seas through horizontal movement. Although the groundwater reserves are very large, after years or even thousands of years of accumulation, the water exchange cycle is very long and the cycle is extremely slow.

2. The ways to solve the water pollution problem are as follows:

1, strengthen the security of drinking water intake;

2. Strengthen the treatment of urban sewage and industrial wastewater;

3. Enhance citizens' environmental awareness;

4. Realize the resource utilization of wastewater;

5. Purification of domestic water;

6. Enhance teenagers' awareness of protecting water resources;

7. Build several landfills;

8. Adopt digital sewage treatment management;

9. It is forbidden for factories to discharge industrial sewage into rivers, oceans, lakes and other waters.

Extended data:

The main functions of the water cycle are shown in three aspects:

① Water is the medium of all nutrients, and the circulation of nutrients is inextricably linked with the water cycle;

(2) Water is a good solvent for substances, which plays an important role in energy transfer and utilization in the ecosystem;

(3) Water is one of the driving forces of geological changes. The loss of mineral elements in one place and the deposition of mineral elements in another place are often completed through water circulation.

The hydrosphere on the earth is an endless dynamic system. Driven by solar radiation and the gravity of the earth, water constantly moves among the components of the hydrosphere, forming a global circulation between the land and the ocean, connecting various water bodies, so that various water bodies can exist for a long time.

Baidu encyclopedia-water cycle

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