What kind of agriculture does the main producing area of the Weihe Plain belong to?

1. It is located in the plain and the terrain is flat;

2. The soil layer is deep and the soil is fertile;

3. There are rivers passing by, and irrigation is convenient;

4. Temperate seasonal climate, high temperature and rain in summer (rain and heat in the same period).

The Weihe Plain or Weihe Basin is a graben-type tectonic plain. It is located in the central part of Shaanxi Province, between the Qinling Mountains and the North Mountains of Weibei (Laolong Mountain, Sagashan, Yaowang Mountain, Yaoshan Mountain, etc.). From Baoji in the west to Tongguan in the east, the altitude is about 325 800 meters and the length is about 300 kilometers.

The width of the north and south is different, the widest in the east is 100 kilometers, about 75 kilometers near Xi'an, only 20 kilometers in Meixian County, and gradually closes into a canyon to Baoji, which resembles a "crescent moon". It covers an area of about 10,000 square kilometers. Because it is between Hangu Pass and Dasan Pass (one says that it is between Hangu Pass, Dasan Pass, Wuguan and Xiao Pass), it was called "Guanzhong" in ancient times.

During the Spring and Autumn Period and the Warring States Period, it was the hometown of the Qin State and was known as the "Eight Hundred Miles of Qinchuan".

The Wei River traverses the Wei River Plain from west to east, and the main stream and tributaries Jing River and Beiluo River have the benefit of irrigation, and famous water conservancy projects in ancient China such as Zhengguo Canal, Bai Canal, Cao Canal, Chengguo Canal, and Longshou Canal are all drawn from these rivers. The Guanzhong Plain has superior natural and economic conditions, and is one of the richest agricultural areas in Chinese history. Because of the convenient transportation, there are mountains and rivers around the danger, from the beginning of the Western Zhou Dynasty, there have been 10 dynasties such as Qin, Western Han, Sui, Tang and so on to build their capitals in the center of the Guanzhong Plain, which lasted more than 1,000 years.

At present, the Guanzhong Plain is one of the industrial, agricultural and culturally developed areas in China, and an important wheat and cotton producing area in China. Wheat accounts for about 50% of the cultivated area, and cotton is mainly distributed in the three major irrigation areas of Jinghui Canal, Luohui Canal and Weihui Canal.

Mainly crops.

The Weihe Plain has developed irrigation since ancient times, rich in wheat, cotton, etc., and is an important commercial grain producing area in China, known as "the golden city of thousands of miles, the land of abundance". The Weihe Plain includes 27 counties and cities in Xi'an, Baoji, Xianyang, Weinan and other cities, accounting for about 15% of the total land area of the province. It is the main grain and cotton production base in Shaanxi Province, accounting for more than 40% of the province's grain output and about 90% of cotton output.

The Wei River traverses the Guanzhong Plain from west to east, and the main stream and tributaries Jing River and Beiluo River all have the benefit of irrigation, and famous water conservancy projects in ancient China such as Zhengguo Canal, Bai Canal, Cao Canal, Chengguo Canal, and Longshou Canal are all drawn from these rivers.

The Guanzhong Plain is one of the industrial, agricultural and culturally developed areas in China, and an important wheat and cotton producing area in China. Wheat accounts for about 50% of the cultivated area, cotton is mainly distributed in the three major irrigation areas of Jinghui Canal, Luohui Canal and Weihui Canal, and in recent years, the cotton planting area has shifted from west to east, which is the key cotton-producing area in Shaanxi Province.

The Weihe Plain is also known as the Guanzhong Plain. In the central part of Shaanxi Province. From Baoji in the west, Tongguan in the east, Qinling in the south, north to the plateau in northern Shaanxi, the average altitude is about 500 meters, 300 kilometers long from east to west, narrow in the west and wide in the east, into a triangle, narrow in the west and wide in the east, the Weihe Plain is known as "Qinchuan in eight hundred miles".

The Weihe Plain is a fault subsidence area, which was formed by the alluvium of the Wei River and its tributaries, the Jing River and the Luo River. Since ancient times, irrigation has been developed, rich in wheat, cotton, etc., and it is an important commercial grain producing area in China.

The Weihe Plain is located in Shaanxi Province and is known as the "Eight Hundred Miles of Qinchuan", where the main crops are wheat and cotton

Therefore, b

The Guanzhong Basin is sandwiched between the Northern Shaanxi Plateau and the Qinling Mountains, and is a giant fault zone formed during the Himalayan movement. The basin is flanked by high-angle normal faults. There is a chain of springs and hot springs outcropping on the fault line.

The mountains on the north and south sides continue to rise along the fault line, and the basin slowly descends, forming a graben-like tectonic plain.

After the formation of the Weihe Plain, not only the loess was piled up, but more importantly, the Weihe River and its tributaries on both sides carried a large amount of sediment to fill and silt in it, and the Quaternary was loosely deposited, with a maximum thickness of more than 7,000 meters. Due to the intermittent changes in the earth's crust and the downcutting of rivers, terraces of varying heights are formed.

The first and second level terraces form the main body of the Guanzhong Plain, which is called "plateau" locally, and is like a stepped head plateau, two plateaus, and three plateaus from top to bottom. The three plateaus are equivalent to second-class terraces. The plateau was cut and broken by the north and south tributaries of the Wei River.

To the north of the Wei River, from west to east, there are Xiping Plateau, Monk Plateau, Zhou Plateau, Jishi Plateau, Shiping Plateau, Bi Plateau, Mei Plateau, Xu Plateau, etc.; To the south of the Wei River, there are Wuzhang Plateau, Xiliu Plateau, Shenhe Plateau, Shaoling Plateau, Bailu Plateau, Tongren Plateau, Yangguo Plateau, Meng Plateau and so on.

The main field crops in the Weihe Plain are: wheat, rapeseed and corn.

Fruit trees are: apple, pear tree, kiwi, peach, pomegranate.

Vegetables: There are many types, concentrated in Sanyuan, Jingyang, and some counties and cities in Weinan Hetao Plain: mainly wheat and corn, and some rice in Ningxia.

Causes: Grabens are formed by crustal movement faults and subsidence, and rivers accumulate to form alluvial plains.

Impact: The terrain is flat, the soil layer is deep and fertile, suitable for the development of farming operations.