Joke Collection Website - Talk about mood - Cherish the 500-word composition or essay on water resources! ! !
Cherish the 500-word composition or essay on water resources! ! !
In addition, although the amount of urban domestic water is far lower than that of agricultural water and industrial water, people's relentless and unscrupulous waste of water resources in domestic water is not much different from the former two. According to statistics, the water consumption for car washing in Beijing in just one year is equivalent to the water storage capacity of one Duokunming Lake or six Beihai Seas. It can be seen that the efficiency of water resources utilization in China is low, which is 15%-20% lower than that in developed countries. China is the country that uses the most water in the world, and it is also one of the countries that wastes the most water resources. In order to produce the same grain, we use twice as much water as the United States. According to Zhang Chunyuan, Vice Minister of the Ministry of Water Resources, agricultural water consumption accounts for the bulk of China's total water consumption, accounting for about 72% of the total water consumption, but the water that is really effectively utilized accounts for about13 of the total water consumption for agricultural irrigation, and most of it is lost in the process of water supply and flood irrigation. Industrially, China's water consumption per 10,000 yuan of output value is 225 cubic meters, while that of developed countries is only 1 1,000 cubic meters.
China is the country that uses the most water in the world, and it is also one of the countries that wastes the most water resources. In order to produce the same grain, we use twice as much water as the United States. According to Zhang Chunyuan, Vice Minister of the Ministry of Water Resources, agricultural water consumption accounts for the bulk of China's total water consumption, accounting for about 72% of the total water consumption, but the water that is really effectively utilized accounts for about13 of the total water consumption for agricultural irrigation, and most of it is lost in the process of water supply and flood irrigation. Industrially, China's water consumption per 10,000 yuan of output value is 225 cubic meters, while that in developed countries is only 100 cubic meter.
China is the country that uses the most water in the world, and it is also one of the countries that wastes the most water resources. In order to produce the same grain, we use twice as much water as the United States. According to Zhang Chunyuan, Vice Minister of Water Resources, agricultural water use
People not only waste the water they are using, but also virtually destroy the unused water resources. At present, more than13 of industrial wastewater and more than 910 of domestic sewage are discharged into rivers and lakes without treatment, which worsens the water environment of 90% cities in China and intensifies the shortage of available water resources. In the late 1980s, a farmer in Kunming poured a small car of waste dyes into Panlong River, dyed the whole river red, and the waterworks closed for one day. One person pollutes a river. It is easy to destroy and pollute water, but it is not easy to control sewage. Every year, 6.5438+0.8 million tons of COD, a serious pollutant, enters the Huaihe River, the country with the most serious water pollution. After the implementation of "Zero Action" in 654.38+0.998, the amount of COD decreased to 900,000 tons. To truly meet the pollution control standards, it is necessary to reduce the amount of COD to 300,000 tons, at least 654.38+0 trillion yuan.
Besides wasting and polluting water resources, the development of water resources lacks unified planning and scientific management, and the unknown water law is not conducive to the development and utilization of water resources. For example, urban planning and industrial layout failed to fully consider the conditions of water resources, leading to over-exploitation of groundwater and depletion of water sources in some areas. On the Shiyang River in Gansu Province, the downstream Minqin Basin in Hexi Corridor still had 600 million cubic meters of water resources in the 1980s, but it dropped sharply to 800 million cubic meters in the 1990s. Water shortage crisis enveloped Minqin people. The main reason is that due to the lack of unified planning, the upstream Wuwei Basin, which is only 100 km, occupies 654.38+06 billion cubic meters of water resources.
Friends, is there any way? Looking at this living water, my heart is crying.
Interviewee: 123.84.30. * 20 10- 10- 19 19: 08.
Environment is the foundation of human existence, and more and more facts prove that the deterioration of the environment has brought serious disasters to human life. How to protect the environment and realize the sustainable development of society is a problem that everyone on the earth must seriously think about. As citizens of the earth in the 2 1 century, we have the responsibility to work together to leave a beautiful world for our future generations.
At present, the environmental protection in China is not very good. Some people will say: What does hydropower have to do with our environmental protection? In fact, saving water and electricity is to protect our environment. Because electricity is power, secondary energy and transformed from primary energy.
Now, hydropower and solar energy can generate electricity, but that only accounts for a small part of people's electricity consumption, and most of the electricity is produced by thermal power plants. Thermal power plants either burn oil or coal, and most of them burn coal. The world consumes billions of tons of coal every year, most of which is used to generate electricity. In addition, coal is a mixture whose main component is carbon. Coal combustion produces carbon monoxide, carbon dioxide, sulfur dioxide and many other pollutants. Among them, carbon monoxide is a toxic gas, too much carbon dioxide will cause greenhouse effect, and sulfur dioxide is the main cause of acid rain. Therefore, if you use less electricity, you may have a lot less pollution. Let's talk about water. In rural areas, wells are basically dug for water or mountain springs, while tap water is used in cities and towns. Tap water is not natural. After natural water is precipitated, filtered and disinfected, it is pumped into the water pipe in our room. If you want running water, you have to use electricity. In addition, water resources are also very precious and increasingly scarce. Saving water means saving resources, saving electricity and protecting the environment. This truth is easy to understand.
We should take our own practical actions to protect the environment. The simplest way is to save electricity and water. It takes great efforts to control environmental pollution and destruction. We teenagers are the future masters, so we must protect the environment. We can start from around us and start from small things. As long as everyone can do something beneficial to protect the environment, I believe our environment will be better tomorrow.
Respondent: geji-ii2010-10-1919:15.
Students, you must have seen such a public service advertisement: there is a faucet on the TV screen, which is dripping with difficulty. The dripping speed became slower and slower, and finally the water was used up. Then a pair of eyes appeared on the picture, and a tear flowed out from it. Followed by this sentence: "If human beings don't cherish water, then the last drop of water we can see will be our own tears."
Water is the source of life. If there were no water on the earth, Mother Earth would not give birth to our offspring from generation to generation. Because the earliest primitive life was first bred in the ocean and gradually extended to the land. Therefore, water is the cradle of life. The survival and development of human beings are also inseparable from water. Because we have to drink water every day, food growth can not be separated from water, and industrial production can not be separated from water. Water is also the "air conditioner" of nature. In the hot summer, when people feel unbearable heat, if only it could rain! Walking by the sea, the sea breeze blows gently, sweeping away the hot and irritable mood; When the cold winter comes, the seawater continuously transfers the stored heat to the surrounding land ... all these are the functions of water.
Although China is rich in water resources, there are few available fresh water resources, and with the development of industry, water pollution has become a serious problem. Many industrial wastewater is discharged into rivers, lakes and oceans, and the clear rivers exude the stench of wastewater. What a terrible thing! In addition, the phenomenon of wasting water is also very serious. According to statistics, a medium-sized city wastes the same amount of water as Dongting Lake every year! March 22nd is World Water Day. Every year on this day, all countries in the world will publicize that everyone should cherish water resources and protect the water of life. In fact, it is not only this day, but every day in our life should cherish every drop of water and cherish the water of life with practical actions!
Respondents: 60. 165. 184. * 20 10- 10-24 14: 48.
China is the country that uses the most water in the world, and it is also one of the countries that waste the most water resources. In order to produce the same grain, we use twice as much water as the United States. According to Zhang Chunyuan, Vice Minister of the Ministry of Water Resources, agricultural water consumption accounts for the bulk of China's total water consumption, accounting for about 72% of the total water consumption, but the water that is really effectively utilized accounts for about13 of the total water consumption for agricultural irrigation, and most of it is lost in the process of water supply and flood irrigation. Industrially, China's water consumption per 10,000 yuan of output value is 225 cubic meters, while that in developed countries is only 100 cubic meter.
In addition, although the amount of urban domestic water is far lower than that of agricultural water and industrial water, people's relentless and unscrupulous waste of water resources in domestic water is not much different from the former two. According to statistics, the water consumption for car washing in Beijing in just one year is equivalent to the water storage capacity of one Duokunming Lake or six Beihai Seas. It can be seen that the efficiency of water resources utilization in China is low, which is 15%-20% lower than that in developed countries.
People not only waste the water they are using, but also virtually destroy the unused water resources. At present, more than13 of industrial wastewater and more than 910 of domestic sewage are discharged into rivers and lakes without treatment, which worsens the water environment of 90% cities in China and intensifies the shortage of available water resources. In the late 1980s, a farmer in Kunming poured a small car of waste dyes into Panlong River, dyed the whole river red, and the waterworks closed for one day. One person pollutes a river. It is easy to destroy and pollute water, but it is not easy to control sewage. Every year, 6.5438+0.8 million tons of COD, a serious pollutant, enters the Huaihe River, the country with the most serious water pollution. After the implementation of "Zero Action" in 654.38+0.998, the amount of COD decreased to 900,000 tons. To truly meet the pollution control standards, it is necessary to reduce the amount of COD to 300,000 tons, at least 654.38+0 trillion yuan.
Besides wasting and polluting water resources, the development of water resources lacks unified planning and scientific management, and the unknown water law is not conducive to the development and utilization of water resources. For example, urban planning and industrial layout failed to fully consider the conditions of water resources, leading to over-exploitation of groundwater and depletion of water sources in some areas. On the Shiyang River in Gansu Province, the downstream Minqin Basin in Hexi Corridor still had 600 million cubic meters of water resources in the 1980s, but it dropped sharply to 800 million cubic meters in the 1990s. Water shortage crisis enveloped Minqin people. The main reason is that due to the lack of unified planning, the upstream Wuwei Basin, which is only 100 km, occupies 654.38+06 billion cubic meters of water resources.
Friends, is there any way? Looking at this living water, my heart is crying.
Interviewee: 123.84.30. * 20 10- 10- 19 19: 08.
Environment is the foundation of human existence, and more and more facts prove that the deterioration of the environment has brought serious disasters to human life. How to protect the environment and realize the sustainable development of society is a problem that everyone on the earth must seriously think about. As citizens of the earth in the 2 1 century, we have the responsibility to work together to leave a beautiful world for our future generations.
At present, the environmental protection in China is not very good. Some people will say: What does hydropower have to do with our environmental protection? In fact, saving water and electricity is to protect our environment. Because electricity is power, secondary energy and transformed from primary energy.
Now, hydropower and solar energy can generate electricity, but that only accounts for a small part of people's electricity consumption, and most of the electricity is produced by thermal power plants. Thermal power plants either burn oil or coal, and most of them burn coal. The world consumes billions of tons of coal every year, most of which is used to generate electricity. In addition, coal is a mixture whose main component is carbon. Coal combustion produces carbon monoxide, carbon dioxide, sulfur dioxide and many other pollutants. Among them, carbon monoxide is a toxic gas, too much carbon dioxide will cause greenhouse effect, and sulfur dioxide is the main cause of acid rain. Therefore, if you use less electricity, you may have a lot less pollution. Let's talk about water. In rural areas, wells are basically dug for water or mountain springs, while tap water is used in cities and towns. Tap water is not natural. After natural water is precipitated, filtered and disinfected, it is pumped into the water pipe in our room. If you want running water, you have to use electricity. In addition, water resources are also very precious and increasingly scarce. Saving water means saving resources, saving electricity and protecting the environment. This truth is easy to understand.
We should take our own practical actions to protect the environment. The simplest way is to save electricity and water. It takes great efforts to control environmental pollution and destruction. We teenagers are the future masters, so we must protect the environment. We can start from around us and start from small things. As long as everyone can do something beneficial to protect the environment, I believe our environment will be better tomorrow.
Respondent: geji-ii2010-10-1919:15.
Students, you must have seen such a public service advertisement: there is a faucet on the TV screen, which is dripping with difficulty. The dripping speed became slower and slower, and finally the water was used up. Then a pair of eyes appeared on the picture, and a tear flowed out from it. Followed by this sentence: "If human beings don't cherish water, then the last drop of water we can see will be our own tears."
Water is the source of life. If there were no water on the earth, Mother Earth would not give birth to our offspring from generation to generation. Because the earliest primitive life was first bred in the ocean and gradually extended to the land. Therefore, water is the cradle of life. The survival and development of human beings are also inseparable from water. Because we have to drink water every day, food growth can not be separated from water, and industrial production can not be separated from water. Water is also the "air conditioner" of nature. In the hot summer, when people feel unbearable heat, if only it could rain! Walking by the sea, the sea breeze blows gently, sweeping away the hot and irritable mood; When the cold winter comes, the seawater continuously transfers the stored heat to the surrounding land ... all these are the functions of water.
Although China is rich in water resources, there are few available fresh water resources, and with the development of industry, water pollution has become a serious problem. Many industrial wastewater is discharged into rivers, lakes and oceans, and the clear rivers exude the stench of wastewater. What a terrible thing! In addition, the phenomenon of wasting water is also very serious. According to statistics, a medium-sized city wastes the same amount of water as Dongting Lake every year! March 22nd is World Water Day. Every year on this day, all countries in the world will publicize that everyone should cherish water resources and protect the water of life. In fact, it is not only this day, but every day in our life should cherish every drop of water and cherish the water of life with practical actions!
China is the country that uses the most water in the world, and it is also one of the countries that waste the most water resources. In order to produce the same grain, we use twice as much water as the United States. According to Zhang Chunyuan, Vice Minister of the Ministry of Water Resources, agricultural water consumption accounts for the bulk of China's total water consumption, accounting for about 72% of the total water consumption, but the water that is really effectively utilized accounts for about13 of the total water consumption for agricultural irrigation, and most of it is lost in the process of water supply and flood irrigation. Industrially, China's water consumption per 10,000 yuan of output value is 225 cubic meters, while that in developed countries is only 100 cubic meter.
In addition, although the amount of urban domestic water is far lower than that of agricultural water and industrial water, people's relentless and unscrupulous waste of water resources in domestic water is not much different from the former two. According to statistics, the water consumption for car washing in Beijing in just one year is equivalent to the water storage capacity of one Duokunming Lake or six Beihai Seas. It can be seen that the efficiency of water resources utilization in China is low, which is 15%-20% lower than that in developed countries.
People not only waste the water they are using, but also virtually destroy the unused water resources. At present, more than13 of industrial wastewater and more than 910 of domestic sewage are discharged into rivers and lakes without treatment, which worsens the water environment of 90% cities in China and intensifies the shortage of available water resources. In the late 1980s, a farmer in Kunming poured a small car of waste dyes into Panlong River, dyed the whole river red, and the waterworks closed for one day. One person pollutes a river. It is easy to destroy and pollute water, but it is not easy to control sewage. Every year, 6.5438+0.8 million tons of COD, a serious pollutant, enters the Huaihe River, the country with the most serious water pollution. After the implementation of "Zero Action" in 654.38+0.998, the amount of COD decreased to 900,000 tons. To truly meet the pollution control standards, it is necessary to reduce the amount of COD to 300,000 tons, at least 654.38+0 trillion yuan.
Besides wasting and polluting water resources, the development of water resources lacks unified planning and scientific management, and the unknown water law is not conducive to the development and utilization of water resources. For example, urban planning and industrial layout failed to fully consider the conditions of water resources, leading to over-exploitation of groundwater and depletion of water sources in some areas. On the Shiyang River in Gansu Province, the downstream Minqin Basin in Hexi Corridor still had 600 million cubic meters of water resources in the 1980s, but it dropped sharply to 800 million cubic meters in the 1990s. Water shortage crisis enveloped Minqin people. The main reason is that due to the lack of unified planning, the upstream Wuwei Basin, which is only 100 km, occupies 654.38+06 billion cubic meters of water resources.
Friends, is there any way? Looking at this living water, my heart is crying.
Interviewee: 123.84.30. * 20 10- 10- 19 19: 08.
Environment is the foundation of human existence, and more and more facts prove that the deterioration of the environment has brought serious disasters to human life. How to protect the environment and realize the sustainable development of society is a problem that everyone on the earth must seriously think about. As citizens of the earth in the 2 1 century, we have the responsibility to work together to leave a beautiful world for our future generations.
At present, the environmental protection in China is not very good. Some people will say: What does hydropower have to do with our environmental protection? In fact, saving water and electricity is to protect our environment. Because electricity is power, secondary energy and transformed from primary energy.
Now, hydropower and solar energy can generate electricity, but that only accounts for a small part of people's electricity consumption, and most of the electricity is produced by thermal power plants. Thermal power plants either burn oil or coal, and most of them burn coal. The world consumes billions of tons of coal every year, most of which is used to generate electricity. In addition, coal is a mixture whose main component is carbon. Coal combustion produces carbon monoxide, carbon dioxide, sulfur dioxide and many other pollutants. Among them, carbon monoxide is a toxic gas, too much carbon dioxide will cause greenhouse effect, and sulfur dioxide is the main cause of acid rain. Therefore, if you use less electricity, you may have a lot less pollution. Let's talk about water. In rural areas, wells are basically dug for water or mountain springs, while tap water is used in cities and towns. Tap water is not natural. After natural water is precipitated, filtered and disinfected, it is pumped into the water pipe in our room. If you want running water, you have to use electricity. In addition, water resources are also very precious and increasingly scarce. Saving water means saving resources, saving electricity and protecting the environment. This truth is easy to understand.
We should take our own practical actions to protect the environment. The simplest way is to save electricity and water. It takes great efforts to control environmental pollution and destruction. We teenagers are the future masters, so we must protect the environment. We can start from around us and start from small things. As long as everyone can do something beneficial to protect the environment, I believe our environment will be better tomorrow.
Respondent: geji-ii2010-10-1919:15.
Students, you must have seen such a public service advertisement: there is a faucet on the TV screen, which is dripping with difficulty. The dripping speed became slower and slower, and finally the water was used up. Then a pair of eyes appeared on the picture, and a tear flowed out from it. Followed by this sentence: "If human beings don't cherish water, then the last drop of water we can see will be our own tears."
Water is the source of life. If there were no water on the earth, Mother Earth would not give birth to our offspring from generation to generation. Because the earliest primitive life was first bred in the ocean and gradually extended to the land. Therefore, water is the cradle of life. The survival and development of human beings are also inseparable from water. Because we have to drink water every day, food growth can not be separated from water, and industrial production can not be separated from water. Water is also the "air conditioner" of nature. In the hot summer, when people feel unbearable heat, if only it could rain! Walking by the sea, the sea breeze blows gently, sweeping away the hot and irritable mood; When the cold winter comes, the seawater continuously transfers the stored heat to the surrounding land ... all these are the functions of water.
Although China is rich in water resources, there are few available fresh water resources, and with the development of industry, water pollution has become a serious problem. Many industrial wastewater is discharged into rivers, lakes and oceans, and the clear rivers exude the stench of wastewater. What a terrible thing! In addition, the phenomenon of wasting water is also very serious. According to statistics, a medium-sized city wastes the same amount of water as Dongting Lake every year! March 22nd is World Water Day. Every year on this day, all countries in the world will publicize that everyone should cherish water resources and protect the water of life. In fact, it is not only this day, but every day in our life should cherish every drop of water and cherish the water of life with practical actions!
Respondents: 60. 165. 184. * 20 10- 10-24 14: 48.
China is the country that uses the most water in the world, and it is also one of the countries that waste the most water resources. In order to produce the same grain, we use twice as much water as the United States. According to Zhang Chunyuan, Vice Minister of the Ministry of Water Resources, agricultural water consumption accounts for the bulk of China's total water consumption, accounting for about 72% of the total water consumption, but the water that is really effectively utilized accounts for about13 of the total water consumption for agricultural irrigation, and most of it is lost in the process of water supply and flood irrigation. Industrially, China's water consumption per 10,000 yuan of output value is 225 cubic meters, while that in developed countries is only 100 cubic meter.
In addition, although the amount of urban domestic water is far lower than that of agricultural water and industrial water, people's relentless and unscrupulous waste of water resources in domestic water is not much different from the former two. According to statistics, the water consumption for car washing in Beijing in just one year is equivalent to the water storage capacity of one Duokunming Lake or six Beihai Seas. It can be seen that the efficiency of water resources utilization in China is lower than that in developed countries 15%-20%.
People not only waste the water they are using, but also virtually destroy the unused water resources. At present, more than13 of industrial wastewater and more than 910 of domestic sewage are discharged into rivers and lakes without treatment, which worsens the water environment of 90% cities in China and intensifies the shortage of available water resources. In the late 1980s, a farmer in Kunming poured a small car of waste dyes into Panlong River, dyed the whole river red, and the waterworks closed for one day. One person pollutes a river. It is easy to destroy and pollute water, but it is not easy to control sewage. Every year, 6.5438+0.8 million tons of COD, a serious pollutant, enters the Huaihe River, the country with the most serious water pollution. After the implementation of "Zero Action" in 654.38+0.998, the amount of COD decreased to 900,000 tons. To truly meet the pollution control standards, it is necessary to reduce the amount of COD to 300,000 tons, at least 654.38+0 trillion yuan.
Besides wasting and polluting water resources, the development of water resources lacks unified planning and scientific management, and the unknown water law is not conducive to the development and utilization of water resources. For example, urban planning and industrial layout failed to fully consider the conditions of water resources, leading to over-exploitation of groundwater and depletion of water sources in some areas. On the Shiyang River in Gansu Province, the downstream Minqin Basin in Hexi Corridor still had 600 million cubic meters of water resources in the 1980s, but it dropped sharply to 800 million cubic meters in the 1990s. Water shortage crisis enveloped Minqin people. The main reason is that due to the lack of unified planning, the upstream Wuwei Basin, which is only 100 km, occupies 654.38+06 billion cubic meters of water resources.
Friends, is there any way? Looking at this living water, my heart is crying.
Interviewee: 123.84.30. * 20 10- 10- 19 19: 08.
Environment is the foundation of human existence, and more and more facts prove that the deterioration of the environment has brought serious disasters to human life. How to protect the environment and realize the sustainable development of society is a problem that everyone on the earth must seriously think about. As citizens of the earth in the 2 1 century, we have the responsibility to work together to leave a beautiful world for our future generations.
At present, the environmental protection in China is not very good. Some people will say: What does hydropower have to do with our environmental protection? In fact, saving water and electricity is to protect our environment. Because electricity is power, secondary energy and transformed from primary energy.
Now, hydropower and solar energy can generate electricity, but that only accounts for a small part of people's electricity consumption, and most of the electricity is produced by thermal power plants. Thermal power plants either burn oil or coal, and most of them burn coal. The world consumes billions of tons of coal every year, most of which is used to generate electricity. In addition, coal is a mixture whose main component is carbon. Coal combustion produces carbon monoxide, carbon dioxide, sulfur dioxide and many other pollutants. Among them, carbon monoxide is a toxic gas, too much carbon dioxide will cause greenhouse effect, and sulfur dioxide is the main cause of acid rain. Therefore, if you use less electricity, you may have a lot less pollution. Let's talk about water. In rural areas, wells are basically dug for water or mountain springs, while tap water is used in cities and towns. Tap water is not natural. After natural water is precipitated, filtered and disinfected, it is pumped into the water pipe in our room. If you want running water, you have to use electricity. In addition, water resources are also very precious and increasingly scarce. Saving water means saving resources, saving electricity and protecting the environment. This truth is easy to understand.
We should take our own practical actions to protect the environment. The simplest way is to save electricity and water. It takes great efforts to control environmental pollution and destruction. We teenagers are the future masters, so we must protect the environment. We can start from around us and start from small things. As long as everyone can do something beneficial to protect the environment, I believe our environment will be better tomorrow.
Respondent: geji-ii2010-10-1919:15.
Students, you must have seen such a public service advertisement: there is a faucet on the TV screen, which is dripping with difficulty. The dripping speed became slower and slower, and finally the water was used up. Then a pair of eyes appeared on the picture, and a tear flowed out from it. Followed by this sentence: "If human beings don't cherish water, then the last drop of water we can see will be our own tears."
Water is the source of life. If there were no water on the earth, Mother Earth would not give birth to our offspring from generation to generation. Because the earliest primitive life was first bred in the ocean and gradually extended to the land. Therefore, water is the cradle of life. The survival and development of human beings are also inseparable from water. Because we have to drink water every day, food growth can not be separated from water, and industrial production can not be separated from water. Water is also the "air conditioner" of nature. In the hot summer, when people feel unbearable heat, if only it could rain! Walking by the sea, the sea breeze blows gently, sweeping away the hot and irritable mood; When the cold winter comes, the seawater continuously transfers the stored heat to the surrounding land ... all these are the functions of water.
Although China is rich in water resources, there are few available fresh water resources, and with the development of industry, water pollution has become a serious problem. Many industrial wastewater is discharged into rivers, lakes and oceans, and the clear rivers exude the stench of wastewater. What a terrible thing! In addition, the phenomenon of wasting water is also very serious. According to statistics, a medium-sized city wastes the same amount of water as Dongting Lake every year! March 22nd is World Water Day. Every year on this day, all countries in the world will publicize that everyone should cherish water resources and protect the water of life. In fact, it is not only this day, but every day in our life should cherish every drop of water and cherish the water of life with practical actions!
China is the country that uses the most water in the world, and it is also one of the countries that waste the most water resources. In order to produce the same grain, we use twice as much water as the United States. According to Zhang Chunyuan, Vice Minister of the Ministry of Water Resources, agricultural water consumption accounts for the bulk of China's total water consumption, accounting for about 72% of the total water consumption, but the water that is really effectively utilized accounts for about13 of the total water consumption for agricultural irrigation, and most of it is lost in the process of water supply and flood irrigation. Industrially, China's water consumption per 10,000 yuan of output value is 225 cubic meters, while that in developed countries is only 100 cubic meter.
In addition, although the amount of urban domestic water is far lower than that of agricultural water and industrial water, people's relentless and unscrupulous waste of water resources in domestic water is not much different from the former two. According to statistics, the water consumption for car washing in Beijing in just one year is equivalent to the water storage capacity of one Duokunming Lake or six Beihai Seas. It can be seen that the efficiency of water resources utilization in China is low, which is 15%-20% lower than that in developed countries.
People not only waste the water they are using, but also virtually destroy the unused water resources. At present, more than13 of industrial wastewater and more than 910 of domestic sewage are discharged into rivers and lakes without treatment, which worsens the water environment of 90% cities in China and intensifies the shortage of available water resources. In the late 1980s, a farmer in Kunming poured a small car of waste dyes into Panlong River, dyed the whole river red, and the waterworks closed for one day. One person pollutes a river. It is easy to destroy and pollute water, but it is not easy to control sewage. Every year, 6.5438+0.8 million tons of COD, a serious pollutant, enters the Huaihe River, the country with the most serious water pollution. After the implementation of "Zero Action" in 654.38+0.998, the amount of COD decreased to 900,000 tons. To truly meet the pollution control standards, it is necessary to reduce the amount of COD to 300,000 tons, at least 654.38+0 trillion yuan.
Besides wasting and polluting water resources, the development of water resources lacks unified planning and scientific management, and the unknown water law is not conducive to the development and utilization of water resources. For example, urban planning and industrial layout failed to fully consider the conditions of water resources, leading to over-exploitation of groundwater and depletion of water sources in some areas. On the Shiyang River in Gansu Province, the downstream Minqin Basin in Hexi Corridor still had 600 million cubic meters of water resources in the 1980s, but it dropped sharply to 800 million cubic meters in the 1990s. Water shortage crisis enveloped Minqin people. The main reason is that due to the lack of unified planning, the upstream Wuwei Basin, which is only 100 km, occupies 654.38+06 billion cubic meters of water resources.
Friends, is there any way? Looking at this living water, my heart is crying.
Interviewee: 123.84.30. * 20 10- 10- 19 19: 08.
Environment is the foundation of human existence, and more and more facts prove that the deterioration of the environment has brought serious disasters to human life. How to protect the environment and realize the sustainable development of society is a problem that everyone on the earth must seriously think about. As citizens of the earth in the 2 1 century, we have the responsibility to work together to leave a beautiful world for our future generations.
At present, the environmental protection in China is not very good. Some people will say: What does hydropower have to do with our environmental protection? In fact, saving water and electricity is to protect our environment. Because electricity is power, secondary energy and transformed from primary energy.
Now, hydropower and solar energy can generate electricity, but that only accounts for a small part of people's electricity consumption, and most of the electricity is produced by thermal power plants. Thermal power plants either burn oil or coal, and most of them burn coal. The world consumes billions of tons of coal every year, most of which is used to generate electricity. In addition, coal is a mixture whose main component is carbon. Coal combustion produces carbon monoxide, carbon dioxide, sulfur dioxide and many other pollutants. Among them, carbon monoxide is a toxic gas, too much carbon dioxide will cause the greenhouse effect, and secondly, a drop of water, cherish the water of life with practical actions!
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- It is impossible to draw a correct conclusion by taking the part as a whole and looking at the problem unilaterally. Please give an example around you and tell me what you have learned.
- Beautiful sentences recited by oneself
- How to write Xiao Shengchu's resume?
- The classic says: if you can't find a reason to persist, find a reason to start over.
- Love Story in Friends Circle _ Classic Love Story
- If you missed fertilizing in autumn, how should you remediate apples in the Loess Plateau growing area in spring?
- How to "inspect posts" is the least publicity and the most effective?
- QQ boys talk about their feelings sadly