Summary of geographical knowledge points of soil and water conservation measures

-The measures for saving water resources summarized in the geography of the first day of junior high school must rationally develop water resources and avoid water resources destruction. Water resources development includes surface water resources development and groundwater resources development.

When exploiting groundwater, because the water quality between aquifers is very different, it should be exploited in layers. Contaminated diving and confined water shall not be mixed; For exploration projects that expose and penetrate the water layer, layered water sealing and hole sealing must be carried out in strict accordance with relevant regulations to effectively prevent water pollution and ensure the sustainable development of water bodies.

1. Vigorously develop greening, increase forest area and conserve water. Forests can conserve water, reduce ineffective evaporation, regulate microclimate, and have throttling significance. It can increase the precipitation in forest areas and forest edges, which is of open source significance.

2. Improve the comprehensive utilization rate of water resources. Water has the characteristics of comprehensive utilization in the same space. Reservoirs can store floods and cultivate aquatic animals and plants. The large water surface is navigable and some water bodies can also be used for tourism. The water used for hydroelectric power generation can be used for irrigation. The water leaked from canals and fields can be pumped underground, and the water pumped underground can also be pumped downstream of irrigation areas for reuse. Xinjiang is an arid area. Without irrigation, there would be no agriculture. Trying to improve the water diversion rate of rivers and arrange the relationship between upstream and downstream water use is equivalent to opening up water sources.

3. Water transfer project. Due to geographical and climatic characteristics, the distribution of water in different regions is unbalanced. Using natural factors and artificial transformation to transfer water from water-rich areas to water-deficient areas is an effective means to solve the water shortage problem and open up new economic zones.

4. Protect water resources. Water resources are polluted, which makes the available water unusable, which is actually equivalent to reducing water resources. At present, 40% of the rivers in the world are polluted to varying degrees, and there is an upward trend.

5. Development and utilization of urban sewage resources, and development of reclaimed water treatment and sewage reuse technology. After treatment and purification, the high-quality miscellaneous drainage produced by some industrial production and life in the city can reach a certain water quality standard and can be used as non-drinking water for greening and sanitation.

6. Develop and popularize water-saving appliances. According to incomplete statistics, there are nearly 40 million sets of toilet water tanks and a large number of other sanitary appliances in China, and the water lost every year due to the leakage of toilet water tanks reaches hundreds of millions of cubic meters.

7. Strengthen the legal system construction and publicity work of protecting water resources and saving water, enhance the awareness of saving water of the whole people, make people consciously realize that water is a valuable resource, abandon the outdated concept of "inexhaustible", and initially form a good social fashion of cherishing water resources, saving water resources and protecting water resources.

To protect water resources, we must first mobilize the whole society and change the traditional concept of water use. To make everyone realize the preciousness of water, the water used to flush toilets is equivalent to the per capita daily water consumption of some developing countries; Taking a cold bath in summer is equivalent to the daily water consumption of dozens of people in water-deficient countries.

Summary: If the faucet is not tightened, the water lost in one night is equivalent to the total amount of drinking water in a village in Africa or Asia. This is by no means sensational, but the result of years of investigation by relevant United Nations agencies. Therefore, it is necessary to call on the whole society to save water, use more water and make full use of circulating water.