The reasons for the uneven regional distribution of water resources in China

The main reason for the uneven regional distribution of water resources in China is the monsoon climate.

The summer monsoon is characterized by high temperatures and rain, and the winter monsoon is characterized by cold and dryness.

In terms of spatial distribution, due to the proximity of the eastern part to the coast, the long rainy season in the south and the short rainy season in the north, and the deep inland in the west, the water resources in the east and west and the south and north are less (affected by sea and land factors and the summer monsoon).

Our country is a country with severe drought and water shortages. China's total freshwater resources are 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.

1. Affected by the monsoon climate, the distribution of precipitation is uneven, resulting in the uneven seasonal distribution and regional distribution of water resources in China.

2. The population, land and economic distribution do not match, with the northern region accounting for 47 of the population, 65 of the cultivated land and 45 of the GDP, but only 19 of the water resources.

3. The territory is vast, spanning the three latitude zones of high, middle and low, due to the distance between the east and west from the sea and the large difference between the north and south latitudes, the regional distribution of precipitation and runoff in the country is extremely uneven, and the general trend is decreasing from the southeast coast to the northwest inland.

4. Interannual differences in precipitation and runoff.

Because the water flows downward.

China's west is high and the east is low, and there is more water in the east than in the west, and the Yangtze River and the Yellow River all originate in the west and flow to the east.

Moreover, the rain in China is blown from the South Pacific, and the higher the elevation of the water vapor in the whole of China, the less rainfall it will be.

The spatial and temporal distribution of water resources in China is uneven. In terms of time, water resources are more in summer and autumn and less in winter and spring due to the concentration of precipitation in summer and autumn (affected by the summer monsoon). In terms of spatial distribution, due to the proximity of the eastern part to the coast, the long rainy season in the south and the short rainy season in the north, and the deep inland in the west, the water resources in the east and west and the south and north are less (affected by sea and land factors and the summer monsoon).

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China's territory is very large, spanning multiple climatic zones from north to south, and the direct reflection is that there is more precipitation in the south and less in the north. The west is deep into the Asian continent, and the warm and humid air currents of the ocean cannot reach it, which is the reason why there is more precipitation in the east and less in the west!

As for the topography, there is no direct relationship between the high in the west and the low in the east and the uneven distribution of precipitation!

This problem should be divided into two aspects: the first is precipitation, in time, China is in the monsoon region, there is more precipitation in summer and autumn, and less precipitation in winter and spring, so the old distribution is uneven in time, spatially, the humid air flow from the Pacific Ocean can increase the precipitation in China, but there are more mountains and rivers in China, which hinders the northward movement of warm and humid air flow, so that the distribution of precipitation in inland areas and coastal areas is uneven, and secondly, it is related to the flood season of various rivers The water resources in the southern basin are relatively abundant, so the spatial and temporal distribution of water resources in China is uneven.

The magnitude of precipitation varies due to the influence of the summer monsoon.

1) In view of the uneven spatial distribution of water resources in China, the implementation of cross-basin water transfer is the main way to solve the shortage of water resources in northern China. (2) In the rainy season, the use of reservoirs to store water is a feasible measure. (3) There is water pollution in areas with developed industrial and agricultural production and concentrated population in cities, and water pollution should be controlled to avoid water shortage, so the answer is: transfer water across river basins to solve the problem of uneven spatial distribution of water resources Build reservoirs to solve the problem of large seasonal changes in water resources Save water and prevent water pollution

Answer: None.

a.There are more in the south and less in the north, and more in the northeast and less in the southwest.

b.There are more in the south and less in the north, and more in the west and less in the east.

c.There are more in the southeast and less in the northwest, and more in the northeast and less in the southwest.

d.There are many mountains and plains, and there are many inland and few coasts.

China's water resources are unevenly distributed, from the north and south, there are more in the south and less in the north, and from the east and west, there are more in the east and less in the west (more along the coast and less inland).

From the perspective of the whole country, there are more in the southeast and less in the northwest. In general, there are more in the southwest than in the northeast.

So there is no answer, the correct way to say it is: more in the south and less in the north, more in the east and less in the west, or more in the southeast and less in the northwest (decreasing from the southeast coast to the northwest inland).