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This is my social investigation report on water.

Water is one of the indispensable conditions for human survival. Without water, there would be no life, so we should protect water resources.

according to statistics, there are about 14 billion cubic meters of water on the earth's surface, but the fresh water resources are only 35 million cubic meters. Of this limited fresh water resources, only .34% can be used by human beings. Due to unbalanced distribution and waste of life, 6% of the world's areas are short of water supply and seriously short of water, which is a serious situation.

All kinds of harmful substances, such as pesticides, heavy metals, chemicals, pathogenic microorganisms, oils and all kinds of waste radioactive substances, were artificially discharged into the water, which exceeded the evolutionary ability of the water itself, so water pollution occurred. A large amount of sewage is discharged into rivers, causing inland water pollution, which in turn pollutes lakes and bays, and even groundwater is doomed. Water pollution is very harmful to people's health, and pathogenic bacteria in sewage can cause the epidemic of infectious diseases. All kinds of toxic substances such as industrial wastewater and pesticides are discharged into water, which can poison people who drink water. Water polluted by heavy metals enters the human body, which will make people chronically poisoned and so on.

Therefore, we should protect water resources and prevent water pollution, starting from the small things around us. For example: saving water and using phosphorus-free washing powder. We should vigorously publicize the knowledge of water resources protection, and report to the relevant departments when we see the destruction of water resources.

to protect water resources, we should start with ourselves, and to protect water resources is to protect human beings themselves.

It is a long way to go to save water and protect water resources

China's severe water resources problem has once again become the focus of public attention. We should fully realize that saving and protecting water resources and realizing the sustainable utilization of water resources have a long way to go.

China is a country with frequent floods, water shortage and fragile water ecological environment. After the founding of New China, China's water conservancy has developed rapidly, effectively promoting economic development and social progress, and has made remarkable achievements. While developing, utilizing and managing water resources, we pay attention to the conservation and protection of water resources, and basically form a system of water resources development, utilization, management and protection that is suitable for socialist modernization.

however, with the growth of population and the rapid development of economy and society, the problem of water resources, especially the contradiction between water shortage and economic and social development, has been fully exposed. The average annual area affected by drought in China is about 4 million mu. In normal years, irrigation areas in China lack 3 billion cubic meters of water every year, and cities lack 6 billion cubic meters of water. At the same time of water shortage, there is still serious waste of water. The utilization coefficient of agricultural irrigation water in most countries is only .4, while in many countries it has reached .7 ~ .8. China's water consumption per 1, yuan of industrial output value is 13 cubic meters, which is 1~2 times that of developed countries. The reuse rate of water in China is about 5%, while that in developed countries is over 85%. The water pollution is serious, and the total amount of sewage discharged in China is nearly 6 billion tons, most of which is directly discharged into the waters without treatment. Among more than 7 important rivers surveyed and evaluated in China, nearly 5% of the river sections and more than 9% of the cities along the river are polluted. Water pollution not only destroys the ecological environment, but also makes the shortage of water resources more serious.

relevant experts pointed out that the severe water resources situation poses a great threat to China's sustainable development. From the perspective of population growth, China's population will reach 1.6 billion around 23, and the per capita water resources will be reduced by 1/5 to about 1,7 cubic meters. From the perspective of economic growth, China's economy will still be in a period of rapid growth in the next few decades. By the middle of this century, the gross domestic product will increase by more than 1 times, urban and industrial water consumption will increase by a large margin, and the discharge of waste water will also increase accordingly. From the perspective of urban development, China's urbanization rate may reach 7% in the middle of the 21st century, and the contradiction between urban water supply and demand will be more acute. From the perspective of grain production, the water resources in the northern grain-producing areas of China are not abundant. The requirement that the country needs to increase 14 million tons of grain before 25 will lead to a more severe situation of water shortage. Therefore, the task of increasing revenue and reducing expenditure and protecting water resources is very arduous.

good water resources are also the main factor restricting the development of the western region. The western region, especially the northwest region, has vast land and sparse water, serious soil erosion and fragile ecological environment. Water resources are the most strategic resources in this region, and the rational development, economical utilization and effective protection of water resources are the important contents of implementing the western development.

in order to alleviate the contradiction of water shortage and stop the deterioration of water environment, relevant departments are stepping up efforts in conservation and protection. At the recent meeting of directors of the National Water Resources Department, Wang Shucheng, Minister of Water Resources, proposed to change the situation that more attention was paid to the development, utilization and management of water resources, while less attention was paid to the allocation, conservation and protection of water resources. Saving and protecting water resources should be regarded as a major national policy to realize the transformation from engineering water conservancy to resource water conservancy, and from traditional water conservancy to modern water conservancy and sustainable water conservancy.

it is understood that the state will take practical steps to strengthen water resources conservation and protection on the basis of overall planning and comprehensive management. In terms of planning, we will change the simple engineering planning method in the past, and put water saving, water resources optimal dispatching, water environmental protection and other projects in an important position to speed up construction and development. Systematically, we should strengthen the function of river basin management, actively promote the establishment of the management system of urban water affairs bureau, and provide institutional guarantee for the scientific allocation of water resources. In management, we should formulate and improve scientific management systems and measures, make full use of economic levers such as water price and water resource fee, and adopt effective scientific and economic means to realize the optimal allocation of water resources, improve the utilization rate of water resources and give full play to comprehensive benefits. On the rule of law, we will resolutely implement the Water Law, the Flood Control Law, the Soil and Water Conservation Law and other relevant laws and regulations, do a good job in supporting the construction of relevant laws, regulations and rules, especially the revision of the Water Law, strengthen law enforcement, and persist in managing water resources according to law. In scientific research, to break through the previous scientific research mode of water conservancy engineering science, it is necessary not only to strengthen the basic science of water conservancy, but also to develop comprehensive disciplines and interdisciplinary subjects, not only to study the problems of water conservancy engineering, especially pivot engineering, but also to closely focus on the prominent contradictions and problems faced by China's water conservancy, to study the relationship between various control measures, scientifically allocate, promote the close integration of water resources management with economic development and ecological environment, and promote the coordination and unity of economic, social and environmental benefits.