Composition on Protecting Water Resources (Prose)

How beautiful it is that a drop of transparent water falls from the blue sky. Then something incredible happened. It is not the blue sea like the sky that meets the water drops, but a dry desert. When water disappeared in the desert, it raised dust. "The last drop of water on the earth is your tear, please cherish water resources", which is a public service advertisement. Indeed, our earth is being tested by unprecedented resources and environment. More and more people pay attention to these topics, and water, as an important part of them, deserves our attention. When we observe our earth in space, we will find that it is a beautiful blue planet. This blue is the water that breeds life and creates miracles. Although we call it "the earth", it is a planet of water, and this water is the earliest birthplace of life, so there is no need to elaborate on how important water is. It is precisely because water is very important that we should cherish it. Indeed, this seems to be a very correct reasoning. However, when we walk in Jiang Bin Road, a city surrounded by green trees, the stench of arrogance is almost equal to our lungs, and the floating white is showing off their figure. The clear river in the past has been put on plain clothes and colorful clothes. When we walk in the long villages with yellow sand in the northwest, people cherish the salty water, counting the rainfall all year round in one hand and the land covered with yellow sand that has lost its vitality in the other; When we came to the beautiful mountain village in the south, the once crystal clear stream turned into a garbage world, and the wild animals that can be seen everywhere have now become a rarity here ... all this happened today when the whole world is concerned about water resources protection. I can't help asking: "Is this a world that has realized that water is the source of life and cherishing water resources is imminent?" Maybe you will immediately refute me by quoting many people's efforts to protect water resources and save the world. But do you also think that we need to protect water resources just because it is important? Don't you realize another more terrible fact: we are constantly destroying the water and environment on which we live. This is the truth that we urgently need to protect water resources. Of course, I don't deny that people have made these efforts, but I have to admit that what I have seen above happens every day. What can we do to truly cherish water resources? This is a very important issue that we must pay attention to at present. Do you really wait until the last drop of water in the world is your tear before you save it? Will it be too late? I think "the past should not be regretted, but the future should be pursued." What we can do now is to stop all persecution of water resources and the environment, try our best to make up for the damage that has been done, and cherish and save the water resources in our hands. "Cherish water resources and protect the environment" is not just a slogan, it needs all of us, all organizations and all countries to seriously and truly implement it. Cherish water resources from now on, from me, from the small things around us. Are the students ready? Water is the source of life, the foundation of life, and human health cannot be separated from water. People can go without food for several days, but they can't go without water for several days. Now, there are 2 billion people in the world who are seriously short of water! ! The water crisis has sounded the alarm for mankind! Although China is rich in water resources, most of the water is seawater, which is salty and cannot be directly drunk. In addition, most of the fresh water is distributed in the cold north and south poles and mountainous areas with snow all year round, and there are few fresh water resources left. Moreover, the distribution is uneven, with less in the east and more in the west, less in the south and less in the north, and there are many places lacking water. When I was a child, I thought, isn't the water in the faucet always flowing? My parents often tell me where there is drought recently, not to mention planting crops, that is, it is difficult to guarantee the water that people drink. I always find it incredible. Isn't water the most abundant thing on earth? Aren't there so many rivers, lakes and seas? How can there be water shortage! Later, as I grew up, I gradually understood that water is the source of all life on earth. The total amount of water on the earth is 18 trillion liters. This amount seems to meet the global population's demand for water resources, but the actual situation is not optimistic. Of the existing water reserves, 99% are seawater and polar ice unsuitable for human use, and the remaining 1% is mostly in the stratum below 800 meters. The water in rivers and lakes that people depend on only accounts for 0.0 1% of the total. There are 18 countries in the world whose per capita renewable water resources are insufficient 1000 cubic meters. According to a report by the World Resources Institute, there are 3.4 billion people in the world who can only get 50 liters of water every year on average, which shows that mankind is facing a crisis of fresh water shortage. This grim situation has not attracted enough attention, and rivers and lakes on which people depend are facing more and more pollution threats. Only by preventing pollutants from entering rivers and lakes or reducing their quantity will the original pollutants in rivers and lakes disappear, dilute and gradually decrease with the water flow. Therefore, the most fundamental way to prevent and control the pollution of rivers and lakes is to control the pollution sources. We know that the pollution sources of rivers and lakes are industrial wastewater and urban and rural domestic sewage. The state has formulated a series of laws and regulations to protect water resources, and made strict restrictions and regulations on wastewater discharge. If we don't cherish water resources, the last drop of water spilled on the earth in the future will be our own tears. The bell rang, and the students left the classroom one after another, ready to eat. At this time, I found a classmate making soap, and the tap water pipe in front of him was running, as if to remind him not to turn on the tap but not to use water, and you don't want to think about how much water it would waste. But this classmate is indifferent. I quickly went up and turned off the tap. He said, "Why did you turn it off? I still need it. " I said, "Just open it when you use it. Why do you have to waste this water? " He has nothing to say. Yes, although one person can't waste much water, if everyone in the whole school and even Beijing wastes such a little water, one year will be enough to merge into a big river. To make the data more accurate, let's calculate it. Suppose that according to the flow rate of water when we wash our hands, 75 ml of water flows every second. There are10 million people in Beijing who wash their hands three times a day, and each person loses water for 60 seconds each time. In this way, it is easy to calculate that if everyone in Beijing uses water without restraint every day, then everyone in Beijing will waste 492.75 million liters of water every year just by washing their hands, which is 49.275 million tons of water, not to mention the water wasted by industry and agriculture. From this data, it is easy to know why the groundwater in Beijing is pumped so fast. Moreover, these water resources are enough for some small and medium-sized cities that lack water for one year. Although the South-to-North Water Diversion Project is being carried out now, how many years can the water be used if it is wasted? Even if you don't think about the people in the water-deficient areas, you should think about your future generations. Although there is still a lot of water on the earth, due to the destruction of human beings, water resources can no longer be regenerated and are gradually decreasing. If we don't act immediately and everyone contributes to the encirclement, then our planet will be destroyed sooner or later. I really hope that there are more and more water resources on the earth, not less and less. Water nourishes everything and is closely related to people's production and life. Water is sweet. But sometimes it is bitter; Water is precious, but sometimes it overflows; The water is clear, but some places are dirty; All living things are inseparable from water, but in some places where water is especially needed, water becomes so stingy ... how much do we know about water, an indispensable source of life? ● Per capita water resources are very limited. According to the statistics of the World Bank 1998 on 132 countries, China's total water resources rank fourth in the world, but its per capita water resources rank 82nd. According to international standards, per capita water resources of 2000 cubic meters is the edge of serious water shortage, and per capita water resources 1000 cubic meters is the minimum requirement for human survival. At present, the per capita water resources of 15 provinces, autonomous regions and municipalities in China are seriously below the water shortage line, and the per capita water resources of 7 provinces and autonomous regions (Ningxia, Hebei, Shandong, Henan, Shanxi, Liaoning and Jiangsu) are below the minimum requirements for survival. ● The water pollution is serious and the loss is huge. According to the water resources quality evaluation of more than 700 rivers in China, about 654.38+10,000 kilometers, 46.5% of the river length is polluted; 10.6% of the river length is seriously polluted, and the water body has lost its use value. More than 90% of urban waters are seriously polluted. Among the seven major river basins in China, more than 70% of the reaches of Taihu Lake, Huaihe River and Yellow River are polluted. The pollution in Haihe River and Songliao River basins is also quite serious, accounting for more than 60% of the polluted river sections, and14 of the population in China drinks water that does not meet the hygienic standards. Water pollution directly affects people's life and living environment in China. ● The rivers and lakes are shrinking and the Yellow River is cut off. During the 27 years from 1972 to 1998, Lijin Station of the Yellow River was cut off at 2 1 year, and the frequency of cut-off has reached five times in four years. * * * is counted as 1050 days, with an average of 50 days in each cut-off, including 6544 days. Rivers in the middle and lower reaches of Haihe River Basin have basically dried up, siltation at the estuary has intensified, and the ecological environment has been seriously damaged. Due to the sharp drop in runoff, the sewage discharged from cities and towns cannot be diluted, and many sewage rivers have been formed, which are vividly called: "No rivers are polluted, and water is polluted." According to the survey, the water surface area of lakes in China has decreased by 30% in the past 30 years. ● The northwest water environment is harsh. At present, the phenomenon of lakes drying up in arid and semi-arid areas in northwest China is very serious, and the salt content and salinity of some lakes have increased obviously, especially in northwest China. Bosten Lake in Xinjiang, due to the construction of water conservancy projects in the upper reaches, the water volume of the lake has dropped sharply, and the irrigation area with high salt content has shrunk and kept entering the lake. Therefore, in a short period of more than 10 years, the lake has evolved from a freshwater lake to a saltwater lake, with the salinity of the lake increased by 6 times, the water surface decreased by 120 square kilometers and the water level decreased by 3.54 meters. Ebinur Lake in the west of Junggar Basin, known as the "green maze", was cut off from water in the 1970s because of deforestation in the lake area in the 1960s. At this point, the surface of Ebinur Lake has been reduced from 1300 square kilometers to 600 square kilometers, and the dried-up lake basin has become a salt desert. Lop Nur, once the largest saltwater lake in China's history, has also dried up. ● The wetland area is shrinking and the ecology is degraded. Due to the population growth, the expansion of cultivated land and the change of ecological types, the wetland area in China has shrunk seriously. The continuous reclamation of the Great Northern Wilderness has reduced the largest wetland area in China by 60%, and the wetland area in Sanjiang Plain has decreased from 4.43 million hectares in the early days of the People's Republic of China to 6.5438+0.9 million hectares. If emergency protection measures are not taken, the wetlands in Sanjiang Plain will disappear in more than ten years. ● The consequences of reclaiming land from lakes in the south are serious. Reclamation of southern lakes is the primary reason for the shrinking area of southern lakes. Jianghan Lake Group, which was once beautiful, lost 983 lakes due to reclamation, and its area decreased by 204 1 square kilometer. At present, there are only 83 lakes left. In less than 40 years, the vast 800-mile Dongting Lake has reclaimed 2.26 million mu. Siltation and reclamation are mutually causal, leading to a vicious ecological cycle in the lake area. ● Overexploitation of groundwater causes environmental problems. Due to the scarcity of surface water resources and the intensification of water pollution, some areas exploit groundwater in a predatory manner, and groundwater overexploitation is very serious. According to incomplete statistics, there are currently 49 groundwater drop funnels 149, with an area of158,000 square kilometers, of which 67,000 square kilometers are seriously over-exploited, accounting for 42.3% of the over-exploited area. The average over-exploitation of groundwater for many years is 6.78 billion cubic meters, and the water level in some funnels has reached 60-80 meters. Land subsidence occurred in some cities, which caused serious consequences. ● China has become one of the countries with the most serious soil erosion in the world, with a soil erosion area of 3.67 million square kilometers, accounting for 38% of the land area, of which the hydraulic erosion area is 6.5438+0.79 million square kilometers. In addition, more than 5 billion tons of soil is lost every year, and the desertification area of the whole country is increased by 2 100 square kilometers every year due to soil erosion, and more than 70,000 hectares of cultivated land are lost for the same reason. Soil erosion in the Loess Plateau takes away 40 million tons of nitrogen, phosphorus and potassium every year, which is equivalent to the annual fertilizer production in China. Water pollution accidents occur frequently. In recent years, water pollution accidents occur frequently all over the country, with an average of more than 1600 per year. 1994 Huaihe river pollution accident caused drinking water difficulties for Jiangsu and Anhui provinces1500,000 people. 1996 After the Spring Festival, another pollution accident occurred in the Huaihe River, causing 700,000 people in Bengbu City to fall into a state of water shortage. In recent 10 years, hundreds of water pollution accidents have occurred in Haihe river basin alone, and regional disputes caused by water pollution have occurred continuously, seriously affecting social stability. Read a heavy report on water resources. What do you think after reading this article? What problems do you think exist in China's water resources? Water is a liquid, but I think water is the "source of life". When you see some faucets on, you must reach out and turn them off, otherwise people will die as soon as the water is used up. There is a saying: "Water is the source of life. Anyone who doesn't save water will see his own tears when he sees the last drop of water. " When I grow up, I want to be a machine called "water-saving machine", which can do the following work: 1. If someone doesn't save water, it will make that person unable to use water for two days; 2, it will give that person three chances, and if you don't cherish it, you will let it not drink water for five days. We should save water from now on. We can use the following methods: "water the flowers with taomi water;" Flush the toilet with flushing water; Mop the floor with washing water and so on. A drop can't moisten a seedling. If you give me a drop, the water can be merged into a river. Saving water starts with me, and from now on, saving water is also a virtue. Water is the source of life, the foundation of life, and human health cannot be separated from water. People can go without food for several days, but they can't go without water for several days. Now, there are 2 billion people in the world who are seriously short of water! ! The water crisis has sounded the alarm for mankind! Although China is rich in water resources, most of the water is seawater, which is salty and cannot be directly drunk. In addition, most of the fresh water is distributed in the cold north and south poles and mountainous areas with snow all year round, and there are few fresh water resources left. Moreover, the distribution is uneven, with less in the east and more in the west, less in the south and less in the north, and there are many places lacking water. When I was a child, I thought, isn't the water in the faucet always flowing? My parents often tell me where there is drought recently, not to mention planting crops, that is, it is difficult to guarantee the water that people drink. I always find it incredible. Isn't water the most abundant thing on earth? Aren't there so many rivers, lakes and seas? How can there be water shortage! Later, as I grew up, I gradually understood that water is the source of all life on earth. The total amount of water on the earth is 18 trillion liters. This amount seems to meet the global population's demand for water resources, but the actual situation is not optimistic. Of the existing water reserves, 99% are seawater and polar ice unsuitable for human use, and the remaining 1% is mostly in the stratum below 800 meters. The water in rivers and lakes that people depend on only accounts for 0.0 1% of the total. There are 18 countries in the world whose per capita renewable water resources are insufficient 1000 cubic meters. According to a report by the World Resources Institute, there are 3.4 billion people in the world who can only get 50 liters of water every year on average, which shows that mankind is facing a crisis of fresh water shortage. This grim situation has not attracted enough attention, and rivers and lakes on which people depend are facing more and more pollution threats. Only by preventing pollutants from entering rivers and lakes or reducing their quantity will the original pollutants in rivers and lakes disappear, dilute and gradually decrease with the water flow. Therefore, the most fundamental way to prevent and control the pollution of rivers and lakes is to control the pollution sources. We know that the pollution sources of rivers and lakes are industrial wastewater and urban and rural domestic sewage. The state has formulated a series of laws and regulations to protect water resources, and made strict restrictions and regulations on wastewater discharge. If we don't cherish water resources, the last drop of water spilled on the earth in the future will be our own tears. Come on, you can find it online. Water is the source of life, the foundation of life, and human health cannot be separated from boiling water.