How to analyze the characteristics of the water system of each continent Starting from the topograph

In Asia, the highest you can see is the Tibetan Plateau in China. Above the Qinghai-Tibet Plateau is the Mongolian Plateau, below is the Yunnan-Guizhou Plateau, and below is the Indochina Peninsula (because the farther down it is, the flatter it becomes, and it is not a plateau.) That is, the peninsula.

Basically)) and on the left side of Indochina is the Indian Peninsula. (As you can see on the map, that is, the elevation of the Indian peninsula is relatively low.) And the Indian Peninsula is on the left, and there is an Iranian plateau.

Looking down to the left of the Iranian plateau, the Arabian Peninsula belongs to Asia. (In addition to the mountains, there are four great deserts in the Arabian Peninsula.) (Actually, it's one of the three major deserts, and one is not very big.)

Now let's talk about what is higher on the Mongolian plateau. Above the Mongolian Plateau is the Central Siberian Plateau. Among the many peninsulas and plateaus in Asia, the Tibetan Plateau is the middle and highest plateau, and the other plateaus or peninsulas surrounding it are not as high as it.

Now let's talk about the water system, since it is a water system, then they must have a place of origin, and the place of origin must be a higher place, flowing to a lower place, so the origin of the river is from the Qinghai-Tibet Plateau to flow out. Two of the most famous rivers in China are the Yellow River and the Yangtze River. Below the Yellow River and the Yangtze River there is a Red River.

Above the Mekong River. Further to the left, the important river is the Ganges. The Mekong River is at its end.

There is an Indus River on the Indian peninsula. Between the Iranian plateau and Arabia, there are two rivers, one is the Euphrates and the other is the Tigris. Under the Yamal Peninsula in Russia is the Ob River and on the right is the Yenisei River.

This is the water system and topography of Asia.

The topography of Asia is medium and complex, high and low, and the water system is bai

projectile; The climate of the interior of Asia is arid, and the area of the inland area is vast, with many inland rivers. dao

The terrain of Europe is dominated by plains and the coastline is fragmented; The temperate oceanic climate is predominant, with abundant precipitation, mild and humid all year round, a dense river network, and a gentle water flow. The rivers are short, abundant in water, and have high shipping value.

Due to the vast area, unique topographic structure and complex climate of Asia, the development and distribution of Asian water systems also have remarkable characteristics.

First, the structure of the water system is radial. The topography of Asia is high in the middle and low in the periphery, with the Tibetan Plateau and the Pamir Plateau towering in the south-central part of the country, from which most of Asia's mountain ranges are dispersed. Therefore, the distribution of water systems in Asia is restricted by the geomorphological structure, and it also presents an uneven radial shape. With the desert as the center, it is surrounded by the Pamir Plateau, the Altyn Mountains, the eastern edge of the Mongolian Plateau, the Altai Mountains, the Kazakh hills, the Turgai Plateau and the mountains on the southern edge of the Iranian Plateau.

The periphery of the inland basin is the outflow water system, which is surrounded by the Zhugzhur Mountains, the Transkhingan Mountains, the Yabronov Mountains, the Sayan Mountains, the Kazakh Hills, etc., and the Arctic Ocean basin is inclined to the Arctic Ocean. East of the Great Khing'an Mountains and Hengduan Mountains, it is the Pacific Basin; South of the Himalayas, the Hindu Kush and the Taurus Mountains, it belongs to the Indian Ocean Basin. In addition, there are a few short rivers that flow into the Black Sea and the Mediterranean Sea.

Second, there are many long rivers. Asia is a vast region, with many rivers flowing far from the ocean. There are seven rivers with a flow of more than 4,000 km, with the Ob (5,570 km), the Yenisei (5,940 km) and the Lena (4,270 km) being the longest rivers in the Arctic Ocean basin; The Heilongjiang River (4,350 km), the Yellow River (5,464 km), the Yangtze River (6,300 km), and the Mekong River (4,500 km) are the major rivers in the Pacific Basin.

Even the inland river of Central Asia, the Syr Darya River (2,991 km), is longer than the Danube River (2,860 km) in Europe.

Third, the inland river basin is vast. Asia's inland basins cover an area of about 17.7 million square kilometres, accounting for 40 percent of the continent's total area, second only to Australia among all continents in the world.

Due to the large area of inland basins, the formation of vast inland basins is mainly the result of topography and climate, and at the same time, it is also closely related to the geological history of the Quaternary. Inland water systems are mostly distributed in the isolated mountain plateaus, basins and lowlands of Central Asia and West Asia, and most of these areas are dry deserts and semi-desert areas with annual precipitation of less than 300 mm. The vast size of Asia's arid interior and its remoteness from the sea are also one of the reasons for the vast inland basins.

After the Quaternary Ice Age, the Ob and Yenisei rivers were diverted to the north, and the old channels that used to flow southward gradually dried up and became relics, prompting the transformation of Central Asia into dry inland deserts.

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Distribution of water resources.

1 Distribution by continent.

The comparison of runoff, precipitation and evaporation on the six continents shows that the distribution of water resources in the world is uneven. Of the six continents, Asia has the largest runoff, i.e., the most abundant water resources, followed by South America, and Oceania with the least water resources.

2 Country distribution.

From a national point of view, Brazil has the largest average annual runoff, followed by Russia, and China ranks sixth in the world.

Why is the world's water unevenly distributed?

The uneven spatial distribution of precipitation has led to the uneven distribution of the world's water resources. Areas with high precipitation and active water cycle are rich in water resources; Water resources are scarce in areas with low precipitation and inactive water cycles. Due to the great differences in the spatial distribution and temporal variation of water resources, the differences in technical conditions, economic levels and social conditions in different countries, the combined effect of these factors makes water resources very scarce in some areas.