The per capita availability of water, the world s water poor country, the world s most water rich co

The total water storage on the earth is about 100 million cubic kilometers, of which about 97% is saltwater in the ocean, which cannot be directly used by humans. Second, the total amount of fresh water is only 100 million cubic kilometers, and this is less than 3% of the total water volume of the earth, some of which exist in the polar regions and high mountains in the form of glaciers and ice caps, and it is difficult for human beings to directly use as groundwater and soil water, of which 2 3 groundwater is buried deep underground; The total amount of surface water such as rivers and lakes is only about 230,000 cubic kilometers, accounting for the total amount of fresh water. As a result, only about 20% of the freshwater is easily available to humans, while the freshwater from rivers and lakes that can be directly accessed only accounts for the total amount of freshwater.

It can be seen that the freshwater resources available for direct human use are very limited.

8,800 cubic meters per capita in the world.

China is one of the water-poor countries per capita.

It is equivalent to only 20% of the United States of Canada

In terms of water resources, the least should be the countries of the Arabian Peninsula, where there are several countries without rivers!

The most is not clear, maybe Brazil, because there is the Amazon there! Yes, maybe Congo, because there is the Congo River! But it's all rainforest areas, because it's rainy all year round!

The earth's water storage is abundant, with a total of 100 million cubic kilometers. Although the amount of water on the earth is huge, there is very little water that can be directly used by people in production and life. First of all, seawater is salty and bitter, undrinkable, unwaterable, and difficult to use for industry.

Second, the earth's freshwater resources account for only a fraction of its total water, and of these very few freshwater resources, more than 70% are frozen in the Antarctic and Arctic ice caps, and together with the inaccessible mountain glaciers and permafrost snow, 87% of the freshwater resources are difficult to use. The freshwater resources that humans can really use are some of the rivers, lakes and groundwater, which account for about the total amount of water on the planet.

cubic kilometers per capita.

1. China is one of the 13 water-poor countries in the world, and the freshwater resources are less than 1 4 of the world's per capita water volume.

2. The reason why China is a water-poor country lies in our improper use of resources, climate change, and the acceleration of urbanization. All of these factors have led to the depletion of China's water resources and the high level of pollution, making China a water-poor country.

3. Therefore, in order to solve the phenomenon of water poverty in China, it is necessary not only to increase the intensity of pollution control, but also to strengthen the management and protection of water resources, promote the rational use of water resources, and accelerate the pace of sustainable development, so that China can further reduce the phenomenon of water poverty and achieve sustainable development.

China is the country with the largest amount of water in the world. Liang Zheng ().

a.That's right. b.Mistake.

The answer is: a

121 bits. China is a country with serious water shortage, although the total amount of freshwater resources is 2.8 trillion cubic meters, accounting for 6% of the world's water resources, second only to Brazil, Russia and Canada, ranking fourth in the world, but only 2,300 cubic meters per capita, is one of the 13 countries with the poorest water resources per capita in the world.

After deducting the hard-to-use flood runoff and groundwater resources scattered in remote areas, the actual available freshwater resources in China are only about 1.1 trillion cubic meters, and the per capita water resources are about 900 cubic meters, and their distribution is extremely uneven.

The earth's water storage is as much as 100 million cubic kilometers, although the amount is huge, and can be directly used by people's production and life, but it is pitiful, and the largest amount of seawater is salty and bitter, undrinkable, cannot be watered, and is difficult to use for industry.

The earth's freshwater resources account for only a fraction of the total amount of freshwater it consumes, and more than 70% of these few freshwater resources are frozen in the ice caps of the Antarctic and Arctic, and 87% of the freshwater resources are difficult to use with the addition of hard-to-use glaciers and permafrost snow.

Kuwait has the lowest per capita water resources in the world, with only 27 litres of water per inhabitant per dayDue to the different geographical environments of countries and regions, the amount of water resources available varies greatly. Queue according to the amount of water resources, and the top ones are:

Brazil, Russia, Canada, United States, Indonesia, China, India. If averaged over the population, it's a different result. The per capita water resources of Chinese are equivalent to 1 4 of the world's per capita resources.

China's total water resources account for 7% of the world's total water resources, ranking 6th, with an average of nearly 2,260 cubic meters of water per person per year, ranking 128th.

The latest report (World Water Resources Development Report) released by the United Nations before the convening of the Third Water Forum on March 16, 2004 ranked the water resources of 180 countries and regions, and China's total water resources accounted for 7% of the world's total water resources, ranking sixth, and ranking 128th with an average of nearly 2,260 cubic meters of water per person per year. In the United States, Alaska and French Guiana each account for the world's top three water abundance.

China's water resources are very scarce, with 2,200 cubic meters per capita, accounting for 0.4 of the world average. China has been listed by the United Nations as one of the countries with water scarcity. By 2030, China's population will reach 1.6 billion, and its per capita water resources will fall to more than 1,000 cubic meters, close to the limit of water-poor countries.

There is a lack of authoritative data on China's total water resources in the world, behind Brazil, Russia, Canada, the United States, and Indonesia.

China's total water resources rank fourth in the world. Per capita occupancy is only the world average.

1 4, about 1 2 of Japan, USA.

1 4, 1 12 in Russia.

If you're not satisfied, you can go to this **.

Water is the lifeblood of agriculture, as well as the lifeblood of the entire national economy and human life. The status and utilization level of water resources have become important indicators to evaluate the sustainable economic development of a country and a region. China is a relatively poor country with water resources, with an average annual precipitation of 630 mm, which is lower than the precipitation of the global land surface and the Asian land surface. The total annual average freshwater resources are trillions of m3, and the per capita water share is only 2 300 m3, which is only equivalent to 1 4 of the world's per capita level, ranking 109th in the world, and one of the 13 countries with the poorest per capita water resources in the world. The water resources of cultivated land are 28 500 m3 hm2, which is 4 5 of the world average.

In addition, the spatial and temporal distribution of water resources in China is seriously unbalanced, with more precipitation in the southeast and less in the northwest, more in the mountainous areas and less in the plains, and the rainfall decreases roughly from southeast to northwest. 81% of the water resources are concentrated in the Yangtze River basin and the south of the Yangtze River, the population and cultivated land in the north of the Yangtze River account for the sum of China, but the water resources only account for 19% of the country, and the per capita occupancy is 517 m3, which is equivalent to 1 5 per capita in the country and 1 20 in the world per capita. In particular, large areas of the Gobi Desert in Xinjiang, Qinghai and other places in the arid areas of northwest China have no irrigation, so there is no agriculture.

The precipitation is unevenly distributed in the year, with little rain in winter and spring, more rain in summer and autumn, and the rainfall in the flood season is too concentrated, often in the form of heavy rain, which is very difficult to utilize, and the amount of water is lacking in the non-flood season. The amount of precipitation varies greatly from year to year, and there is a huge difference between wet years and dry years, so that flood and drought disasters occur frequently, and even drought and flood sometimes occur one after another in the same area, alternating into disasters.