Northeast China refers to the region consisting of Liaoning, Jilin and Heilongjiang provinces and five allied cities in eastern Inner Mongolia, which is referred to as Northeast China for short. Northeast China, called Qing Ji Erzhou, Yingping Erzhou, Liaodong, Liaohai and Guanwai in ancient times, is the floorboard of land in Northeast China. The land area is 65.438+0.45 million square kilometers, and the total population is 65.438+0.2 billion. The word Northeast has an earlier origin.
Zhifang City, Zhou Li is called Youzhou in the northeast, and its town hill is called the medical wizard's mound. It geographically divides China into four corners, and the northeast is its corner. Later, "Huai Nan Zi Luo Xun" said that it was intentional to hide the thin state in the northeast. During the Liao and Jin Dynasties, the Northeast Army Division and the Northeast Road Recruitment Division appeared, which endowed the Northeast regional management with significance. During the Ming and Qing Dynasties, the word Northeast has combined the meanings of location and region into one.
Natural Environment in Northeast China
Northeast China spans the middle temperate zone and the cold temperate zone from south to north, belonging to temperate monsoon climate, with four distinct seasons, warm and rainy in summer and cold and dry in winter. From southeast to northwest, the annual precipitation decreases from 1000 mm to below 300 mm, and it transits from humid area and semi-humid area to semi-arid area. The high forest coverage in Northeast China can prolong the melting time of ice and snow, and forest snow storage is helpful to the development of agriculture and forestry. The northeast region in the first-class division of land meteorological geography in China includes Liaoning, Jilin and Heilongjiang.
Surrounded by mountains and fertile fields, it is the basic feature of the ground structure in Northeast China, and the soil quality is mainly black soil, which is the natural basis for forming a large economic zone. South is the Yellow Sea and Bohai Sea, east and north are surrounded by Yalu River, Tumen River, Wusuli River and Heilongjiang, and only the west is the land boundary.
Reference to the above content: Baidu Encyclopedia-Northeast China