Joke Collection Website - Bulletin headlines - Handwritten newspaper with the theme of "Protecting the environment and saving water"
Handwritten newspaper with the theme of "Protecting the environment and saving water"
Water conservation refers to strengthening water management through administrative, technical, economic and other management means, adjusting the water use structure, improving water use methods, scientific, reasonable, planned and focused water use, and improving water utilization efficiency. Avoid wastage of water resources. In particular, publicity should be carried out among the whole people, and water-saving activities such as World Water Day should be used to educate everyone to use water scientifically in daily work or life and consciously save water, so that everyone has the responsibility to save water.
"Water is the source of life, and we must protect every drop of water." This sentence is true. If there is no water, the earth will dry up; if there is no water, we humans may die of thirst. ; If there was no water, there would be no beautiful world of ours. We must cherish every drop of water and every tear of Mother Earth. ?
Water is one of the important resources that human beings rely on for survival and development. It is an indispensable and irreplaceable special resource. Without water, there would be no life and no progress of civilization. The world's water resources are limited and cannot be used without limit. In today's world, with the continuous growth of population and the continuous development of economy, the demand for freshwater resources is increasing; at the same time, due to unreasonable utilization, the originally scarce freshwater resources are becoming increasingly tense. Historically, my country is a country with frequent droughts, known as "nine droughts in ten years". In more than 2,200 years of historical documentation, major droughts have occurred as many as 1,300 times. my country's per capita water resources are only about 2,300 cubic meters, which is about a quarter of the world's per capita water. Not only does my country have a small amount of water resources per capita, but the distribution of water resources is extremely uneven. The drainage area of ??the water system north of the Yangtze River accounts for 63.5% of the country's land area, but the water resources account for 19% of the country's total. With the development of my country's society and economy, the water gap is getting bigger and bigger. At present, my country's agricultural irrigation lacks an average of more than 30 billion cubic meters of water every year, and more than 30 million people in rural areas across the country have difficulty drinking water. More than 400 cities across the country are short of water, and more than 110 cities have serious water shortages. The daily water shortage in cities across the country is 16 million cubic meters. Every year, water shortage affects the industrial output value of more than 200 billion yuan and affects the urban population of about 40 million. people.
It can be said that through years of hard work, my country's water-saving cause has made great progress. However, compared with some developed countries, we still lag behind. Agriculture is a large user of water resources and a large waste of water resources. In our country, the agricultural irrigation method of "earth canal water delivery and flood irrigation" is still widely used. Half of the irrigation water is lost through leakage during water delivery. The utilization coefficient of irrigation water is mostly only 0.4, which is lower than that of some developed countries. half level. In my country, the grain yield increased by 0.5 kilograms per square meter of water irrigation, while in developed countries it can reach 2 kilograms. In industry, due to the backward technology of existing water facilities, my country's current industrial water consumption per 10,000 yuan of output value is 103 cubic meters, compared with 8 cubic meters in the United States and only 6 cubic meters in Japan, which is 10 to 20 times that of developed countries; reuse of industrial water in my country The rate is only about 40, while the average in developed countries is 75 to 85. The phenomenon of urban residents not saving water for domestic use is very serious. In Beijing alone, 360,000 tons of water escape and leak every year.
We should learn from some good foreign methods, such as: carrying out "water resources education", raising people's awareness of water conservation, building pipelines to collect sewage from urban residents and public facilities, and urban sewage management. Recycle after secondary or tertiary treatment and purification, improve toilet flushing equipment, and adopt water-saving household equipment, so that we can better save water!
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