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What are the main features of China’s terrain?

Characteristics: my country's terrain is higher in the west and lower in the east, roughly distributed in a three-level ladder shape.

Impact:

①The impact of terrain on climate: my country’s terrain is high in the west and low in the east, sloping toward the ocean, which is conducive to the moist airflow (summer monsoon) from the ocean penetrating deep into the inland, providing a good environment for our country. The region brings a large amount of precipitation, which is conducive to the development of agricultural production in the vast areas of eastern my country.

②The impact of terrain on rivers: my country's terrain is high in the west and low in the east, making most of our country's rivers flow from west to east. At the same time, rivers have huge gaps at the junctions of each ladder, and water energy resources are very rich.

③The impact of terrain on transportation: This has two aspects. On the one hand, the large river flowing eastward connects the east-west transportation in my country, facilitates the economic connections between the coast and the inland, and is conducive to promoting the development of coastal areas. Economic development, the great economic development of the western region; on the one hand, the tall mountains at the junction of the stairs have also become a huge obstacle to my country's east-west transportation.

Extended information:

The first step of the terrain is the Qinghai-Tibet Plateau and Qaidam Basin, with an average altitude of more than 4,000 meters. Its northern and eastern edges are distributed with the Kunlun Mountains, Qilian Mountains and Hengduan Mountains, which are the dividing line between the first and second levels of terrain.

Large basins and plateaus are distributed on the second step of the terrain, with an average altitude between 1,000 and 2,000 meters, including the Junggar Basin, Tarim Basin, Inner Mongolia Plateau, Loess Plateau, Sichuan Basin, and Yunnan-Guizhou Plateau. . To the east, the Greater Hinggan Mountains, Taihang Mountains, Wushan Mountains, and Xuefeng Mountains are the dividing line between the second and third levels of terrain.

The third step of the terrain is distributed with vast plains, interspersed with hills and low mountains, including the Northeast Plain, the North China Plain, the middle and lower reaches of the Yangtze River Plains and the Liaodong Hills, Shandong Hills and Southeast Hills. Mostly below 500 meters.

If you draw a topographic profile of China from west to east through the 32° north latitude line, from the large plateau in the west, to the basin in the middle, and then to the plain in the east, the west is higher and the east is lower, in a step-by-step manner. The terrain characteristics of the descent are very obvious.

The five prominent terrains are plains, plateaus, hills, basins, and mountains, all of which have different levels except plateaus. These terrains are divided into first-level types and second-level types. They are different from each other in the form of adjacent sibling forms. The meaning of adjacency itself is exclusive and inclusive. For example, the adjacent Sichuan Basin is surrounded by plateaus and mountains.

A large terrain is composed of different lower-level terrains, which is an inclusive relationship. For example, the Sichuan Basin has the Chengdu Plain, Mount Emei and some hills, etc., the Songliao Basin has the Songnen Plain and hills, etc., and the Qinghai-Tibet Plateau has There are five secondary terrains such as Qaidam Basin, Gangdise Mountains, etc. The Tianshan Mountains are mountainous and there are Turpan Basin and hills in the east.

A large terrain is composed of different lower-level terrains (non-adjacent morphological relationship A and abcde), but it is inclusive. For example, the Sichuan Basin includes the Chengdu Plain, Emei Mountain, a group of hills, etc., Songliao The basin includes Songnen plains, hills, and a group of small mountains.

There are five secondary terrains in the Qinghai-Tibet Plateau: the Qiangtang Plateau, the Qiangtang Basin (the central part is a plain), the Qaidam Basin, the Aksai Chin Basin, the Gangdise Mountains and a number of other mountainous areas. . The Tianshan Mountains are mountainous and there is the Turpan Basin in the east. There are also some lower-level hills in the plains of the lower reaches of the Yangtze River, such as Zhongshan in Nanjing. There are also some hills and hills in the 9,000 square kilometers of the Chengdu Plain, such as Chengdu Longquan Mountain (Longquan Scenic Area).

Baidu Encyclopedia - Terrain