Hello fellow veterans, I believe many people do not know much about the scope of the Loess Plateau. Therefore, today I will share with you about the scope of the Loess Plateau and the scope of the Loess Plateau. I hope this knowledge about the latitude and longitude range of the Plateau can help everyone and solve some of your confusions. Let’s take a look below!
Contents of this article
- Characteristics of the Loess Plateau
- What kind of geographical scope is the Loess Plateau
- What is the latitude and longitude range of the Loess Plateau
- The difference between the Loess Plateau and the Loess Plateau
- Words describing the Loess Plateau
- Loess high slope altitude
1. Nature of the Loess Plateau
Loess landform is a landform developed in the loess layer (including loess-like soil). Loess is a continental light yellow silty soil-like accumulation formed during the Quaternary period. China is the first country in the world to study loess landforms.
The characteristics of loess create favorable conditions for water erosion. Therefore, running water is an important force in the formation and development of loess landforms. In addition, there are gravity erosion, submerged erosion and wind erosion. Loess landforms can be divided into two categories: ravine landforms and inter-valley landforms.
1. Loess gully landforms can be divided into rills, shallow gullies, incised gullies, gullies and river gullies according to their morphological characteristics.
2. Loess valley (valley) landforms. The landforms between valleys in the loess area are mainly sources, beams and hills. These landform types are distributed among large valleys such as gullies and river ditches, and are divided by large valleys. Plateau is a wide range of flat highlands covered by loess. Flowing water on the plateau mainly causes sheet erosion, while around the plateau it is ravine erosion. The edge of the plateau has become fragmented due to ravine erosion. The plateau has been cut by ravines for a long time, and its area has gradually shrunk. It can also become relatively fragmented and become a broken plateau. The plateau is formed by loess covering a large area of flat ancient terrain. Liang is a long loess hill. The beam, as it is referred to locally in the loess area of my country, has a narrow top and an obvious dome shape. The other is a flat-top beam with a flatter top. The formation of beams is mostly related to strip-shaped paleotopography. Mao is dome-shaped loesshills. Mao, as people refer to it in the loess areas of my country, has a small top area and an obvious dome, and its overall appearance is very similar to a steamed bun.
2. What kind of geographical scope does the Loess Plateau refer to
The Loess Plateau is more than a thousand kilometers from east to west and 750 kilometers from north to south. It includes the vast area west of Taihang Mountain, east of Riyue Mountain in Qinghai Province, north of Qinling Mountains, and south of the Great Wall. Spanning Shanxi Province, northern Shaanxi Province, Gansu Province (except Longnan City, most of Pingliang City, and Ning County and Zhengning County in Qingyang City), Qinghai Province, Ningxia Hui Autonomous Region, Henan Province and other provinces and regions, it is located on the second level of the ladder in my country , covering an area of about 620,000 square kilometers and an altitude of 800 to 3,000 meters.
3. What is the latitude and longitude range of the Loess Plateau
Loess Plateau ( Loess Plateau) is in northern China, south of the Great Wall, east of Riyue Mountain, west of Taihang Mountain, and north of Qinling Mountains, mainly including Shanxi, Shaanxi, and parts of Gansu, Qinghai, Ningxia, Henan and other provinces, covering an area of 400,000 square kilometers. , the largest loess accumulation area in the world. The loess is 50-180 meters thick, the climate is relatively arid, precipitation is concentrated, vegetation is sparse, and soil and water loss is serious. The Loess Plateau is rich in minerals, with large reserves of coal, petroleum and bauxite.
4. The difference between loess high slope and loess plateau
Loess The plateau, in a broad sense, covers an area of about 635,000 square kilometers. Generally speaking, it refers to the loess area. It mainly includes the Shanxi Plateau, Shaanxi-Gansu-Ningxia Plateau, Longzhong Plateau, Ordos Plateau and Hetao Plain. But the Loess Area is not the Loess Plateau in the strict sense, because there are differences between these plateaus in terms of geological structure.
What we usually call the Loess Plateau generally refers to the Loess Plateau in a narrow sense. The specific range roughly starts from the Great Wall in the north, to the Qinling Mountains in the south, and from the Sun in the west. From Yueshan Mountain to Taihang Mountain in the east, it covers an area of about 300,000 square kilometers.
The Loess Plateau stretches from Riyue Mountain in Qinghai to Luoyang in Henan, and is about 1,000 kilometers long from east to west. From Datong City in the north to the southern edge of the Guanzhong Basin, it is about 750 kilometers long from south to south. More than 100 kilometers long, the entire plateau is located on the second step of my country\’s ladder, with an altitude between 800 and 3,000 meters.
The overall terrain of the Loess Plateau is high in the northwest and low in the southeast, with Liupan Mountain and Luliang Mountain as the leadingThe boundary is divided into three parts: east and west: To the west of Liupan Mountain is the Longzhong Plateau, with an altitude of between 2000 and 3000 meters. It is the highest area in the Loess Plateau. Between Liupan Mountain and Luliang Mountain is the main part of the Loess Plateau, with an altitude of about 1,000 to 2,000 meters. It is also the area with the most severe soil erosion in the loess area. Although the Shanxi Plateau to the east of Luliang Mountain is also in the loess range, its terrain has dropped to between 500 and 1,000 meters, and the moist and fertile river valley basin has become the main landform.
Speaking of the Loess Plateau, everyone first thinks that the altitude must be very high, and they all think of the Loess Mountains in northern Shaanxi, but from a geographical perspective To understand it, the Loess Plateau in a narrow sense includes many landform types. Mainly divided into 5 major types. There are mountain areas, plateau areas, plateau areas, valley plain areas and hilly areas. The mountainous areas are mainly distributed in the Garbage Mountain in the west, Liupan Mountain, Ziwuling Mountain, Huanglong Mountain in the middle, and Luliang Mountain and Taihang Mountain in the west. Moreover, most of the mountain features are dominated by stone.
The plateau area is mainly distributed over a large area in the Longdong area. What is a plateau? It is a landform type where the surrounding areas collapse and there is a vast flat land in the middle. This is The landforms on the Loess Plateau are very suitable for crop cultivation. Dongzhiyuan in Qingyang area is the largest plateau area in the Loess Plateau.
Then what is Taiwan? The platform is a long loess platform formed by loess covering the steps on both sides of the river valley. They are mainly distributed on both sides of the Wei River, both sides of the Weihan Ancient Road, and in the Sanmenxia and Luoyang areas. Especially in Luoyang, Henan, loess cave dwellings are also very common.
The valley plain is easy to understand. It is a long and narrow valley formed by river alluvial, such as Guanzhong Plain, Fen Valley and Luoyang Basin. Formed, they are also the three largest plains in the Loess Plateau. Of course, this is the main reason why the flat and fertile Guanzhong Plain and Luoyang area are also part of the Loess Plateau, not that only the Loess Plateau is the so-called Loess Plateau.
The last one is the hilly area. The hilly area is the most widely distributed landform type on the Loess Plateau. The loess high slopes in our impression basically belong to the hilly range. , the relative height difference of these mountains is generally between 150 meters and 250 meters. Due to long-term wind erosion and water erosion, the current fragmented loess surface with thousands of ravines and ravines has gradually formed.
In fact, millions of years ago, the Loess Plateau was still a large lake, which was covered by wind and sand in the northwest.It was gradually formed due to burial and continuous geological movements. Except for a few mountainous areas that are made of stone, other areas are basically made of loess, and the thickness of the loess is mostly between 50 and 80 meters, with the thickest even reaching 150 to 180 meters.
With the continuous development of wind prevention and sand fixation and afforestation in recent years, the current Loess Plateau is no longer a harsh environment full of yellow sand. What we see now Although the satellite map still shows a yellow surface, it is actually green vegetation all over the mountains and large forests that are gradually forming.
5. Words to describe the Loess Plateau
1. (1 ). Reckless. Wang Fuzhi of the Qing Dynasty wrote in \”The Introduction to Xi Tang Yong Ri\”: \”But Ai Qianzi still used the word \’Mang Mang Cang Cang\’ in his thesis, but he didn\’t know that \’Mang Mang Cang Cang\’ is what the common people call \’reckless\’, and what Mencius called \’Maocai\’.\”
2. (2). Boundless. Qin Mu\’s \”Shibei from the Sea of Art: Giant Sun\”: \”A red sun in the east is brilliant and shining brightly on the vast land.\”
3 , (3). Desolate appearance. Qu Qiubai\’s \”Fuman Prison Diary\”: \”[That place] is now a vast, desolate and filthy land, with mountains of bones piled up.\”
4. [Explanation]: border: edge. The horizon is as far as the eye can see. The description is very broad. [From]: Chapter 64 of Wu Chengen\’s \”Journey to the West\” of the Ming Dynasty: \”As far as the eye can see, it seems to be a thousand miles away.\” [Synonyms]: A flat river, boundless, boundless [Antonyms]: within easy reach, as close as one\’s eyelashes, a strip of water [Grammar]: contraction; used as predicate and attributive;
5. To describe a vast territory. As can be seen from the above, both words have an endless meaning, regardless of whether it is Whether it is a plateau or a plain, it can be called endless. Although the Loess Plateau is crisscrossed with ravines, it is still boundless from a large scale. And it is very common to search for such words on the Internet. Of course, the vast expanse of land is more appropriate to describe the Loess Plateau, and the endless expanse of land is better to describe the North China Plain.
6. Loess high slope altitude
Loess is mainly distributed in central China As far as the northwest, north and northeast of my country, the largest Loess Plateau in the world is the Loess Plateau located in the upper and middle reaches of the Yellow River. Its scope roughly starts from Yinshan Mountain in the north, Qinling Mountains in the south, Riyue Mountain in the west, and Taihang Mountain in the east, spanning Qinghai, Ningxia, Gansu,Shaanxi, Shanxi, and Henan provinces cover an area of 640,000 square kilometers. The thickness of loess cover is generally less than 100 meters, and the loess layer is thickest in eastern Longxi, northern Shaanxi, and western Shanxi. From the east of Liupan Mountain to the west of Luliang Mountain, the thickness of loess ranges from 100 to 200 meters. The thickest layer is in Lanzhou, which is up to 100 meters thick. More than 300 meters. The loess distribution area and thickness rank highest in the world. The altitude is 1000~2000 meters.
The sharing of the scope of the Loess Plateau and the longitude and latitude range of the Loess Plateau is over. Did the above article solve your problem? Welcome to come again next time!
