What is the situation of freshwater resources per capita in Chinese, and what is the status of fresh

China is one of the 12 water-poor countries in the world, and its freshwater resources are less than 1 4 of the world's per capita water resources. More than half of the country's more than 600 cities are short of water, of which 108 cities are seriously short of water. The scarcity of surface water resources has led to the overexploitation of groundwater.

In the 50s, Beijing's wells could produce water about 5 meters below the surface, but now Beijing's 40,000 wells are 49 meters deep on average, and groundwater resources are nearly exhausted. 2.Guardianship of water sources – protecting water sources is protecting lives According to environmental monitoring, about 100 million tons of sewage are discharged directly into water bodies every day across the country.

More than half of the country's seven major river systems are polluted. Of the 35 key lakes, 17 are seriously polluted, and 1 3 of the country's water bodies are not suitable for irrigation. More than 90 percent of urban waters are seriously polluted, more than 50 percent of urban water sources do not meet drinking water standards, 40 percent of water sources are no longer drinkable, and 60 to 70 percent of the total water shortage in southern cities is caused by water pollution.

3.Multi-purpose – reuse water 70% of the Earth's surface is covered by water, with about 1.4 billion cubic meters of water, including seawater. Although the rest is fresh water, more than half of it is ice, rivers and lakes and other directly usable water resources, which account for only about about the total amount of water.

China's total freshwater resources are less than 2.8 trillion cubic meters, accounting for 6% of the world's water resources (compared to more than 18% of the world's population by Chinese), ranking fourth in the world after Brazil, Russia and Canada. However, China's per capita water resources are only 2,300 cubic meters, which is only 1 4 of the world average, and it is one of the poorest countries in the world in terms of per capita water resources.

However, China is the largest water consumer in the world. In 2002 alone, the country's freshwater withdrawals reached 549.7 billion cubic meters, accounting for about 13% of the world's annual withdrawals, which was about twice the 470 billion cubic meters of freshwater in the United States in 1995.

Currently, the world's freshwater resources account for only 2 percent of its total water5 per cent, of which more than 70 per cent is frozen in the ice caps of the Antarctic and Arctic, and 86 per cent of freshwater resources are unusable with the addition of inaccessible mountain glaciers and permafrost snow.

The freshwater resources that humans can really use are a fraction of rivers, lakes and groundwater, which account for only the total amount of water on the planet. Currently, 16 people in the world, some 1 billion people, are water-defined. Experts estimate that by 2025, more than 2.5 billion people in the world will suffer from water scarcity.

1. Freshwater resources on the planet account for nearly 3% of the total water volume. The oceans account for about the total amount of water on earth, and the terrestrial freshwater only accounts for the total amount of water, of which glaciers account for the terrestrial freshwater, and lakes and underground saltwater account for the total. The total amount of freshwater resources in China is about one trillion cubic meters, ranking sixth in the world.

According to China's population of 1.3 billion, the per capita is about cubic meters, which is only equivalent to 1/4 of the world's per capita share, ranking 109th in the world. China is a major country with serious water shortage, ranking among the top among more than 40 countries with severe water shortage.

2. The spatial and temporal distribution of water resources in China is uneven, and it is not suitable for the regional distribution of cultivated land and population. In the south, where arable land accounts for about 36% and population accounts for about 54%, water resources account for 81%, while water resources account for only 75% in the seven northern provinces and cities, where arable land accounts for 45% and population accounts for 38%. There is also an imbalance in the distribution of time and space, and about 70% of the rain is concentrated in summer and autumn, mostly in the form of heavy rain.

China's per capita freshwater resources account for the world's per capita freshwater resources as follows:

China's per capita freshwater resources account for 1 5 percent of the world's per capita freshwater resources.

According to the State of World Water Resources Report released by the United Nations in 2018, the global average per capita water resources are 5,850 cubic meters per year, while the per capita water resources of Chinese are only 1,700 cubic meters per year, only about one-third of the world average, and it is one of the 13 water-poor countries in the world.

At present, the world's freshwater resources account for only 70% of its total water, of which more than 70% are frozen in the ice caps of the Antarctic and the Arctic, and 86% of the freshwater resources are difficult to use, together with the unusable mountain glaciers and permafrost snow.

1. The freshwater resources that human beings can really use are part of rivers, lakes and groundwater, which only account for the total amount of water on the earth, and at present, there are 1 6 people in the world and more than 1 billion people who lack water. Experts estimate that by 2025, more than 2.5 billion people in the world will suffer from water scarcity.

2. To protect water resources, we must first mobilize the whole society to change the traditional concept of water use. It is necessary to make everyone realize that water is precious, and that the water used to flush the toilet bowl is equivalent to the daily water consumption per capita in some developing countries; Taking a cool shower in the summer uses the same amount of water as dozens of people in a water-scarce country use every day.

3. Water resources must be reasonably developed to avoid the destruction of water resources. The development of water resources includes the development of surface water resources and the development of groundwater resources. When extracting groundwater, it should be extracted in layers because the water quality of each aquifer varies greatly.

4. Do not mix mining for polluted diving and confined water; For exploration projects that expose and penetrate aquifers, it is necessary to strictly do a good job of layered water stopping and sealing holes in accordance with relevant regulations, so as to effectively prevent water pollution and ensure the sustainable development of water bodies themselves.

Introduction to freshwater resources.

Freshwater resources are what we usually call water resources, which refers to the freshwater resources on land. It is composed of water from the Eno Xunla River and lakes, mountain snow, glaciers, and groundwater. Without water, there is no life.

Only three percent of the earth's water is freshwater, all terrestrial life depends on freshwater in the final analysis, it determines the distribution of life on the earth, water vapor rises from the sea, is carried inland by the wind, and with the increase in altitude, converges into clouds to form rainfall, which is also one of the basic ** of freshwater.

Streams converge to form a rushing river that carves out the wonders of nature, and its banks provide habitat for wildlife and nurture a wealth of species, whether in the mountains or at the bottom of lakes, where there is fresh water, there is life.

Total amount of freshwater resources in China: Freshwater resources are what we usually call water resources, which refers to freshwater resources on land. It is made up of water from rivers and lakes, mountain snow, glaciers, and groundwater.

Without water, there is no life.

Only three percent of the earth's water is freshwater, all terrestrial life depends on freshwater in the final analysis, it determines the distribution of life on the earth, water vapor rises from the sea, is buried by the wind to the inland, with the increase of the altitude of the spike rolling ants, converges into clouds, forms rainfall, which is also one of the basic ** of freshwater, streams converge to form a galloping river, carving out many wonders of nature, the river provides many wildlife habitats along the river, giving birth to rich species, whether it is high mountains, or the bottom of the lake, Where there is fresh water, there is life.

In the 21st century, the contradiction between supply and demand of water resources in China has further intensified. According to **, in 2010, the total water supply of the country was 6200 650 billion m3, and the corresponding total water demand will reach 730 billion m3, and the gap between supply and demand is nearly 100 billion m3, and the total water demand of the country will reach 1 trillion m3 in 2030, and the country will have a water shortage of 4000 450 billion m3. In other words, in the next 30 years, the water supply will increase by 400 450 billion m3, which is a very difficult task to accomplish.

China's per capita freshwater resources account for the world's per capita freshwater resources as follows:

China has abundant water resources, but its per capita water resources are only 1 4 of the world's per capita water resources, ranking 121st in the world, and it is recognized by the United Nations as a "water scarce" country. Among the more than 600 cities in the country, more than 400 cities have the problem of insufficient water supply, of which 110 cities have serious water shortages, and the total annual water shortage in cities across the country has reached 6 billion cubic meters.

Not only that, but water resources are severely unevenly distributed across the country. The area south of the Yangtze River, which accounts for one-third of the country's area, has four-fifths of the country's water volume, while the vast northern region has less than one-fifth of the country's water volume, of which the northwest inland region accounts for only one-fifth of the country's water resources.