Do you know anything about mountains and plains?

1 The traffic in mountainous areas is blocked and the plain is convenient.

Life in mountainous areas often retains local characteristics, while life in plain areas is not.

Bicycles are rare in mountainous areas, but common in plain areas.

Mountain folk singing folk songs is also a part of life, but plain people are not.

There are less cultivated land in mountainous areas and most of them are cultivated by hand, and there are more cultivated land in plain areas with high degree of mechanization.

It is common for villages and towns in mountainous areas to build plains by water to take groundwater.

There are many buildings in mountainous towns and high buildings, because there are few homesteads, few buildings in plain towns and low buildings.

The principle of decentralization and leveling of buildings in mountainous villages and towns is centralization.

Roads in mountainous areas are flat according to the principle of walking around mountains.

Families in mountainous villages rely more on outdoor antennas according to the principle that satellite signal receivers are generally flat.

There are many stones in the mountain house and many bricks in the plain.

Mountain people want to get out of the mountain plains, and people want to go home to build houses and spend the New Year in the North China Plain.

China's second largest plain. Located in the lower reaches of the Yellow River. It starts from Taihang Mountain and Western Henan Mountain in the west, reaches the Yellow Sea, Bohai Sea and Shandong Hill in the east, starts from Yanshan Mountain in the north, reaches Tongbai Mountain and Dabie Mountain in the southwest, reaches northern Jiangsu and Anhui in the southeast, and is connected with the plain in the middle and lower reaches of the Yangtze River. It extends to seven provinces and cities including Beijing, Tianjin, Hebei, Shandong, Henan, Anhui and Jiangsu. It covers an area of about 300,000 square kilometers. Mainly from the Yellow River, Huaihe River, Haihe River, Luanhe River alluvial, so it is also called Huanghuaihai Plain. The lower reaches of the Yellow River naturally cross the middle and are divided into two parts: the Huanghuai Plain in the south and the Haihe Plain in the north. Over the past century, the Yellow River has reclaimed 2300 square kilometers of land here. The plain continues to extend to the ocean, the fastest being the Yellow River Delta, with an average of 2-3 kilometers per year. The terrain is low and flat, mostly below 50 meters above sea level, and the eastern coastal plain is below 10 meters above sea level. Slightly inclined from west to east. It mainly belongs to Cenozoic giant depression with a sedimentary thickness of about1500 ~ 5000m. There are many low-lying areas and lakes and swamps on the plain. Concentrated in the northern part of the Yellow River alluvial fan between Baoding and Dagu, Tianjin. The contact area between the eastern edge of alluvial fan and Shandong hills has poor drainage and high groundwater level, which is easily threatened by floods and forms saline-alkali land. 1949, it was reformed and managed. It belongs to a warm temperate continental climate with obvious changes in four seasons. The Huaihe river basin in the south is in a transitional area to the subtropical zone, and the temperature and precipitation are higher than those in the north. The average annual temperature in the plain is 8 ~ 15℃, and it is cold and dry in winter. The average temperature in Leng Yue (65438+1October) is 0 ~-6℃, the average temperature in the hottest month in summer (July) is 28℃, and the average annual precipitation is 600 ~ 800 mm; The frost-free period is 6 ~ 8 months; There is plenty of sunshine, and the average sunshine hours in most years are 2300 ~ 2800 hours. Most crops are planted three times a year, and two times a year in the south. The soil is deep and fertile. The main food crops are wheat, rice, corn, sorghum, millet and sweet potato, and the cash crops are mainly cotton, peanuts, sesame seeds, soybeans and tobacco. Rich in mineral resources, such as coal, oil and iron ore, China's famous Dagang Oilfield and Shengli Oilfield. The eastern coasts of Bohai Sea and Yellow Sea are flat and suitable for drying sea salt. There are famous Luchang salt area and Subei salt area, and there are also important saline-alkali industrial bases. North China Plain is the cradle of ancient culture in China, with many ancient cities, such as Beijing (Hebei), Handan, Kaifeng, Shangqiu and Huaiyang.

Plains of the Middle and Lower Reaches of the Yangtze River

The plain in the middle and lower reaches of the Yangtze River is one of the three major plains in China. Located along the middle and lower reaches of the Yangtze River east of Yichang, Hubei, it consists of two lakes (Jianghan Plain in Hubei and Dongting Lake Plain in Hunan), Poyang Lake Plain, Jiangsu-Anhui Plain along the Yangtze River, He Lixia Plain and Yangtze River Delta Plain, covering an area of about 200,000 square kilometers. The two lakes plain is bounded by Jingjiang River, which is called Jianghan Plain in the north and Dongting Lake Plain in the south. Jianghan Plain is mainly formed by alluvial deposits of the Yangtze River and the Han River. Since the entrance of Jingjiang North dike into Jianghan Plain was completely blocked around 1300, the sediment carried by Hanjiang River has played a major role in the development of Jianghan Plain, and its delta has become an important part of Jianghan Plain. The terrain of the Hanjiang River Delta is also slightly inclined from northwest to southeast, and there are many lakes in the southeast front. Dongting Lake Plain is mainly formed by the Yangtze River sediment from the south bank of Jingjiang River passing through Taiping, Ouchi, Songzi and Tiao County (blocked at 1958). The area is about 1 1,000 square kilometers. Most of them are below 50 meters above sea level, high in the north and low in the south, with dense water networks and fertile soil. The flood plain in the middle of Poyang Lake Plain, except the red mounds at the edge, is mainly formed by the scouring and silting of rivers such as Jiangxi, Fuzhou, Xinjiang, Poyang Lake and Xiushan, among which Ganjiang is the main one. It covers an area of about 20,000 square kilometers. The terrain is low and flat, most of which are below 50 meters above sea level. The water network is dense, and the surface is covered with red soil and river alluvium. The plain along the Yangtze River in Jiangsu and Anhui mainly refers to the long and narrow alluvial plain distributed along the banks of the Yangtze River between Hukou and Zhenjiang, including Wuhu Plain and Chaohu Plain. The width and width of the plain alternate, the river flows in and out, and the velocity is gentle; Since Datong, every time supported by the tide, the flow velocity has slowed down and the sediment deposition has been strengthened. Especially when the river passes through the rock head forced by the rock mound, river branches and sandbars appear between the branches. There are many lakes on both sides of this river. The Yangtze River Delta is developed from the estuary below Zhenjiang. To the north of the delta is the He Lixia Plain. The plain is a dish-shaped depression with high, middle and low levels in the Zhou Dynasty. The northern edge of the depression is the old course of the Yellow River; The southern margin is the delta on the north bank of the Yangtze River; The west edge is Hongze Lake and Yunxi levee; The eastern edge is the coastal plain of northern Jiangsu.

The banded plain in the middle and lower reaches east of the Three Gorges of the Yangtze River in China. Huaiyang Mountain and Huanghuai Plain are in the north, and Jiangnan hills and Zhejiang and Fujian hills are in the south. It is alluvial from the Yangtze River and its tributaries. It covers an area of about 200,000 square kilometers. The terrain is low and flat, and the altitude is mostly about 50 meters. The middle reaches include Jianghan Plain in Hubei, Dongting Lake Plain in Hunan and Poyang Lake Plain in Jiangxi. The downstream plains include the plain along the Yangtze River and Chaohu Lake in Anhui Province (the central plain of Anhui Province), and the Yangtze River Delta between Jiangsu, Zhejiang and Shanghai. Most of the climate belongs to the north subtropical zone, and a small part belongs to the northern edge of the middle subtropical zone. The annual average temperature is 14 ~ 18℃, the most Leng Yue average temperature is 0 ~ 5.5℃, the absolute minimum temperature is-10 ~-20℃, the hottest month average temperature is 27 ~ 28℃, and the frost-free period is 2 10 ~ 270 days. For agricultural crops, the annual precipitation is 1000 ~ 1400 mm, which is concentrated in spring and summer. Zonal soil is only found in low hills and gentle hills, mainly yellow brown soil or yellow cinnamon soil. The southern margin is red soil, and most of the plains are paddy soil. With developed agriculture and high land reclamation index (62. 1% in Shanghai and 45.6% in Jiangsu), it is an important grain, cotton and oil production base. Rich in rice, wheat, cotton, rape, silkworm, ramie, jute and so on. Rivers and branches crisscross, and lakes are dotted. The lake covers an area of 20,000 square kilometers, equivalent to 10% of the plain area. Large lakes, including small lakes, have an area of10.3 million square kilometers, accounting for more than 20% of the plain area of the two lakes, which is the place with the largest number of lakes in China. There are many freshwater lakes such as Poyang Lake, Dongting Lake, Taihu Lake, Hongze Lake and Chaohu Lake, which are connected with the Yangtze River and have the functions of regulating water volume and reducing flood peak. They produce fish, shrimp, crab, lotus, water chestnut and reed, as well as world treasures such as Chinese sturgeon, Chinese alligator and baiji. Aquatic products occupy an important position in China and are known as the land of plenty. It is one of the most economically developed areas, including Shanghai, Nanjing, Wuhan, Nanchang, Suzhou, Wuxi, Changzhou, Nantong, Wuhu and Changsha. The main industries are steel, machinery, electricity, textiles and chemistry, and it is an important industrial base. The plain is located in the hub of China's north-south and east-west transportation networks, with developed land and water transportation. The Yangtze River runs through the middle and becomes an east-west waterway artery, and its many tributaries form a huge waterway network.

Plains of the Middle and Lower Reaches of the Yangtze River

The plain in the middle and lower reaches of the Yangtze River is one of the three major plains in China. Located along the middle and lower reaches of the Yangtze River east of Yichang, Hubei, it consists of two lakes (Jianghan Plain in Hubei and Dongting Lake Plain in Hunan), Poyang Lake Plain, Jiangsu-Anhui Plain along the Yangtze River, He Lixia Plain and Yangtze River Delta Plain, covering an area of about 200,000 square kilometers. The two lakes plain is bounded by Jingjiang River, which is called Jianghan Plain in the north and Dongting Lake Plain in the south. Jianghan Plain is mainly formed by alluvial deposits of the Yangtze River and the Han River. Since the entrance of Jingjiang North dike into Jianghan Plain was completely blocked around 1300, the sediment carried by Hanjiang River has played a major role in the development of Jianghan Plain, and its delta has become an important part of Jianghan Plain. The terrain of the Hanjiang River Delta is also slightly inclined from northwest to southeast, and there are many lakes in the southeast front. Dongting Lake Plain is mainly formed by the Yangtze River sediment from the south bank of Jingjiang River passing through Taiping, Ouchi, Songzi and Tiao County (blocked at 1958). The area is about 1 1,000 square kilometers. Most of them are below 50 meters above sea level, high in the north and low in the south, with dense water networks and fertile soil. The flood plain in the middle of Poyang Lake Plain, except the red mounds at the edge, is mainly formed by the scouring and silting of rivers such as Jiangxi, Fuzhou, Xinjiang, Poyang Lake and Xiushan, among which Ganjiang is the main one. It covers an area of about 20,000 square kilometers. The terrain is low and flat, most of which are below 50 meters above sea level. The water network is dense, and the surface is covered with red soil and river alluvium. The plain along the Yangtze River in Jiangsu and Anhui mainly refers to the long and narrow alluvial plain distributed along the banks of the Yangtze River between Hukou and Zhenjiang, including Wuhu Plain and Chaohu Plain. The width and width of the plain alternate, the river flows in and out, and the velocity is gentle; Since Datong, every time supported by the tide, the flow velocity has slowed down and the sediment deposition has been strengthened. Especially when the river passes through the rock head forced by the rock mound, river branches and sandbars appear between the branches. There are many lakes on both sides of this river. The Yangtze River Delta is developed from the estuary below Zhenjiang. To the north of the delta is the He Lixia Plain. The plain is a dish-shaped depression with high, middle and low levels in the Zhou Dynasty. The northern edge of the depression is the old course of the Yellow River; The southern margin is the delta on the north bank of the Yangtze River; The west edge is Hongze Lake and Yunxi levee; The eastern edge is the coastal plain of northern Jiangsu.

The banded plain in the middle and lower reaches east of the Three Gorges of the Yangtze River in China. Huaiyang Mountain and Huanghuai Plain are in the north, and Jiangnan hills and Zhejiang and Fujian hills are in the south. It is alluvial from the Yangtze River and its tributaries. It covers an area of about 200,000 square kilometers. The terrain is low and flat, and the altitude is mostly about 50 meters. The middle reaches include Jianghan Plain in Hubei, Dongting Lake Plain in Hunan and Poyang Lake Plain in Jiangxi. The downstream plains include the plain along the Yangtze River and Chaohu Lake in Anhui Province (the central plain of Anhui Province), and the Yangtze River Delta between Jiangsu, Zhejiang and Shanghai. Most of the climate belongs to the north subtropical zone, and a small part belongs to the northern edge of the middle subtropical zone. The annual average temperature is 14 ~ 18℃, the most Leng Yue average temperature is 0 ~ 5.5℃, the absolute minimum temperature is-10 ~-20℃, the hottest month average temperature is 27 ~ 28℃, and the frost-free period is 2 10 ~ 270 days. For agricultural crops, the annual precipitation is 1000 ~ 1400 mm, which is concentrated in spring and summer. Zonal soil is only found in low hills and gentle hills, mainly yellow brown soil or yellow cinnamon soil. The southern margin is red soil, and most of the plains are paddy soil. With developed agriculture and high land reclamation index (62. 1% in Shanghai and 45.6% in Jiangsu), it is an important grain, cotton and oil production base. Rich in rice, wheat, cotton, rape, silkworm, ramie, jute and so on. Rivers and branches crisscross, and lakes are dotted. The lake covers an area of 20,000 square kilometers, equivalent to 10% of the plain area. Large lakes, including small lakes, have an area of10.3 million square kilometers, accounting for more than 20% of the plain area of the two lakes, which is the place with the largest number of lakes in China. There are many freshwater lakes such as Poyang Lake, Dongting Lake, Taihu Lake, Hongze Lake and Chaohu Lake, which are connected with the Yangtze River and have the functions of regulating water volume and reducing flood peak. They produce fish, shrimp, crab, lotus, water chestnut and reed, as well as world treasures such as Chinese sturgeon, Chinese alligator and baiji. Aquatic products occupy an important position in China and are known as the land of plenty. It is one of the most economically developed areas, including Shanghai, Nanjing, Wuhan, Nanchang, Suzhou, Wuxi, Changzhou, Nantong, Wuhu and Changsha. The main industries are steel, machinery, electricity, textiles and chemistry, and it is an important industrial base. The plain is located in the hub of China's north-south and east-west transportation networks, with developed land and water transportation. The Yangtze River runs through the middle and becomes an east-west waterway artery, and its many tributaries form a huge waterway network.

■ Plain in the Middle and Lower Reaches of the Yangtze River

The banded plain in the middle and lower reaches east of the Three Gorges of the Yangtze River in China. Huaiyang Mountain and Huanghuai Plain are in the north, and Jiangnan hills and Zhejiang and Fujian hills are in the south. It is alluvial from the Yangtze River and its tributaries. It covers an area of about 200,000 square kilometers. The terrain is low and flat, and the altitude is mostly about 50 meters. The middle reaches include Jianghan Plain in Hubei, Dongting Lake Plain in Hunan and Poyang Lake Plain in Jiangxi. The downstream plains include the plain along the Yangtze River and Chaohu Lake in Anhui Province (the central plain of Anhui Province), and the Yangtze River Delta between Jiangsu, Zhejiang and Shanghai. Most of the climate belongs to the north subtropical zone, and a small part belongs to the northern edge of the middle subtropical zone. The annual average temperature is 14 ~ 18℃, the most Leng Yue average temperature is 0 ~ 5.5℃, the absolute minimum temperature is-10 ~-20℃, the hottest month average temperature is 27 ~ 28℃, and the frost-free period is 2 10 ~ 270 days. For agricultural crops, the annual precipitation is 1000 ~ 1400 mm, which is concentrated in spring and summer. Zonal soil is only found in low hills and gentle hills, mainly yellow brown soil or yellow cinnamon soil. The southern margin is red soil, and most of the plains are paddy soil. With developed agriculture and high land reclamation index (62. 1% in Shanghai and 45.6% in Jiangsu), it is an important grain, cotton and oil production base. Rich in rice, wheat, cotton, rape, silkworm, ramie, jute and so on. Rivers and branches crisscross, and lakes are dotted. The lake covers an area of 20,000 square kilometers, equivalent to 10% of the plain area. Large lakes, including small lakes, have an area of10.3 million square kilometers, accounting for more than 20% of the plain area of the two lakes, which is the place with the largest number of lakes in China. There are many freshwater lakes such as Poyang Lake, Dongting Lake, Taihu Lake, Hongze Lake and Chaohu Lake, which are connected with the Yangtze River and have the functions of regulating water volume and reducing flood peak. They produce fish, shrimp, crab, lotus, water chestnut and reed, as well as world treasures such as Chinese sturgeon, Chinese alligator and baiji. Aquatic products occupy an important position in China and are known as the land of plenty.