Contents of handwritten newspaper on World Water Day

Saving water is our shared responsibility.

The theme of World Water Day and China Water Week is "Sanitary Water Use" and "Strengthening Conservation and Protection to Realize Sustainable Utilization of Water Resources" respectively. Looking at such a theme, we can't help but think of the famous warning saying: If we don't cherish the precious water resources, then the last drop of water on the earth is probably our tears!

water resources, the "crisis" faced by human society * * *

water is one of the important resources for human survival and development, and it is an indispensable and irreplaceable special resource. Without water, there would be no life, no progress of civilization, economic development and social stability. The water resources in the world are limited, and the economic and social development must be adapted to the water supply, and the water can't be used without limit, and the carrying capacity of water resources can't be exceeded. In today's world, with the continuous growth of population and economic development, the demand for fresh water resources is increasing; At the same time, due to unreasonable utilization, the shortage of fresh water resources is becoming increasingly tense.

China's water shortage has a long history. Historically, China is a country with frequent droughts, known as "nine droughts in ten years". In more than 22 years of historical documents, there have been as many as 13 major droughts. China's per capita water resources is only about 23 cubic meters, which is about a quarter of the world's per capita water. China's water resources are not only less per capita, but also unevenly distributed. The river basin area north of the Yangtze River accounts for 63.5% of the country's land area, while water resources account for 19% of the country's total. With the development of our society and economy, the gap of water is getting bigger and bigger. At present, China's agricultural irrigation lacks an average of more than 3 billion cubic meters of water every year, and there are still more than 3 million people in rural areas who have difficulty drinking water. There are more than 4 cities in China with water shortage, and there are more than 11 cities with serious water shortage. The daily water shortage of cities in China is 16 million cubic meters, which affects the industrial output value of more than 2 billion yuan and the urban population of about 4 million people every year. In addition to China, there are many countries and regions in the world that have serious water shortage problems. The United Nations Water Conference pointed out: "We are entering a new era of water shortage". The growing global water crisis has attracted great attention from the international community. The United Nations Conference on Human Environment in 1972 and the United Nations Water Conference in 1977 warned the world: "Water will soon become a serious social crisis, and the next crisis after the oil crisis is water." Countries all over the world have begun to pay unprecedented attention to water problems, and gradually formed a * * * understanding of the water crisis. In August 1995, the World Bank's survey report announced that 26 countries with 4% of the world's population were facing a water crisis, and their agriculture, industry and people's health were seriously threatened. About 1 billion people in developing countries do not have access to clean water, 1.7 billion people do not have good sanitation facilities, and 8% of diseases are caused by drinking unclean water, which causes 25 million deaths every year. On World Water Day in 1999, the United Nations warned that with the development of human production and the improvement of living standards, the world's water consumption is increasing at an annual rate of 5%, and the total water consumption will double every 15 years. Unless governments take effective measures, more than half of the population on the planet will face a crisis of fresh water resources and more than one third of the population will not get clean drinking water before 225. The shortage of water resources has become the main restricting factor of global social and economic development. Rational utilization of water resources is an urgent task for sustainable development of mankind, and water conservation is the key to rational utilization of water resources and one of the fastest, most feasible and most extensive ways to maintain sustainable utilization of water resources.

saving water is our common responsibility. It can be said that through years of efforts, China's water-saving cause has made great progress, but compared with some developed countries, we still have a long way to go. Agriculture is a big water user and a big waste of water resources. In our country, the agricultural irrigation method of "soil canal water conveyance and flood irrigation" is still widely used at present, and half of the irrigation water is lost in water conveyance, and the utilization coefficient of irrigation water is mostly only .4, which is less than half of that of some developed countries. After irrigation per square meter of water, China will increase grain production by .5 kg, while developed countries can reach 2 kg. Industry, because the existing water facilities are backward in technology, the current water consumption per 1, yuan of industrial output value in China is 13 cubic meters, 8 cubic meters in the United States and only 6 cubic meters in Japan, which is 1 ~ 2 times that of developed countries; The reuse rate of industrial water in China is only about 4%, while the average in developed countries is 75% ~ 85%. It is very serious that urban residents do not talk about saving and wasting their domestic water, so water-saving education has a long way to go. Beijing alone leaks 36, tons of water a year. Israel, which is also short of water, not only has two sets of pipes for residents to flush toilets and wash their hands, but also has two buttons for defecation and urination. It is the Israelis who have a strong sense of water crisis who invented the agricultural drip irrigation technology. From now until the middle of the next century, it is a period for China to fully realize the grand goal of socialist modernization. With the population growth and social and economic development, water consumption will increase substantially, and the contradiction between supply and demand of water resources will become more acute. It is predicted that the total water demand in 21 will be 698.8 billion cubic meters, in 23 it will be 8 billion cubic meters, and in 25 it will be at least 85 billion cubic meters, which will increase by 15 billion cubic meters, 25 billion cubic meters and 3 billion cubic meters respectively compared with the water supply capacity of 55 billion cubic meters in 1995. It can be seen that the gap in water use is quite large. Only by adhering to the principle of increasing revenue and reducing expenditure at the same time, giving priority to reducing expenditure, further strengthening water-saving work, realizing the optimal allocation and efficient utilization of water resources centered on water-saving, and striving to achieve the basic balance between supply and demand, can we successfully achieve the long-term economic development goal. Saving water and ensuring the sustainable utilization of water resources are our common cause and our common responsibility!

fresh water resources in the world

Many people imagine the earth as a blue planet with 71% of its surface covered with water. In fact, 97.5% of the water on the earth is salt water, and only 2.5% is fresh water. In fresh water, nearly 7% is frozen in the ice sheets of Antarctica and Greenland, and most of the rest is soil moisture or deep groundwater, which is difficult to exploit for human use. Water from rivers, lakes, reservoirs and shallow groundwater is easy to be exploited for human direct use, but its quantity is less than 1% of the world's fresh water, accounting for about .7% of all the water on the earth. The annual precipitation that falls on the mainland is about 11 trillion cubic meters. After deducting the atmospheric evaporation and the water absorbed by plants, the river runoff in the world is about 42.7 trillion cubic meters. According to the world population in 1995, the average water available to each person per year is 7,3 cubic meters. Due to the increasing world population, this average has dropped by 37% compared with 197.

Water-saving tips

Saving water is beneficial to the present age, and it will make a great contribution to the future generations. This is how the students worked out some water-saving tips for life after discussion:

First, washing vegetables with rice water and then washing them with clear water not only saves water, but also effectively removes the residual pesticides on vegetables;

second, wash the mop, sweep the floor and then flush the toilet. The second washing water for washing clothes cleans doors and windows, furniture, shoes and socks, etc.

thirdly, flush the toilet after urinating and urinating, and try not to turn on the big water pipe for flushing, but make full use of the used "dirty water";

4. Sprinkle water on indoor and outdoor floors to cool down in summer, and try not to use clean water, but use laundry water after laundry;

5. When cleaning bicycles and family cars, use a wet cloth instead of water. In places that are too dirty, it is also advisable to use the remaining water after washing clothes.

VI. Flushing toilets: If you use water-saving equipment, you can save 4-5 kg of water each time;

7. Watering flowers at home should use rice washing water, tea, laundry water, etc.

8. Wash towels, small objects, fruits and other small amounts of water at home. It is advisable to use a basin to hold water instead of turning on the tap to flush it;

9. floor washing: scrubbing with a mop can save more than 2kg of water for each household than washing with a faucet;

1. If the faucet leaks after being used for a long time, you can cut the rubber cover of the small penicillin bottle and put it in, which can ensure that it is watertight;

Xi. Adjust the floating ball of the water tank in the bathroom down by 2 cm, which can save nearly 3 kg of water each time; If you use it four times a day at home, you can save 438kg of medicine a year.

12. Vegetable washing: wash one basin at a time, and don't run the faucet, which can save 5kg； for one meal;

XIII. Shower: If you turn off the tap and wipe the soap, you can save 6kg； of water by taking a shower;

XIV. Washing clothes by hand: If you wash and clean clothes in a washbasin, you will save 2kg； of water each time compared with running the tap;

XV. Washing clothes with a washing machine: It is recommended that you fill a bucket before washing. If you wash it twice separately, it will consume 12kg； more water.

slogan of saving water

1. Saving water is an important measure to implement the sustainable development strategy.

2. Strive to create a water-saving city and implement sustainable development.

3. Vigorously popularize water-saving domestic water appliances.

4. Saving water and protecting water resources are the responsibilities of the whole society.

5. Pay equal attention to both open source and throttling, give priority to throttling, focus on pollution control, open source scientifically, and make comprehensive utilization.

6. the state implements planned water use and strictly saves water.

7. Cherish water, love the water and save water, starting from me.

8. persist in giving priority to water conservation and strive to build a water-saving city.

9. Save water, benefit mankind, benefit the present and make contributions to the future.

1. Manage water according to law, use water scientifically and save water consciously.

11. Strengthen urban water conservation management, and save and protect urban water resources.

12. Strive to establish a water-saving economy and a water-saving society.

13. Protect water resources and promote the western development; Save every drop of water and create a water-saving city.

14. Saving water is the responsibility and obligation of every citizen.

15. Water is the source of life, the blood of industry and the lifeblood of a city.

16. Cherishing water means cherishing your life.

17. Please cherish every drop of water.

18. Water shortage in the world, China and cities, please save water.

19. It is shameful to waste water, but glorious to save water.

2. Water is an irreplaceable precious resource.

21. To save water, it is important to use water rationally and scientifically.

22. Establish a good fashion that everyone cherishes and saves water.