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Which places belong to the north?
China is located in the north of Qinling-Huaihe River, south of Inner Mongolia Plateau, east of Daxing 'anling and Qinghai-Tibet Plateau, and east of Bohai Sea and Yellow Sea.
The northern region is dominated by plains, with both plateaus and mountains. The northern part of China is mainly temperate and subtropical monsoon climate. The climate is characterized by four distinct seasons throughout the year, high temperature and rainy summer and cold and dry winter.
Extended data:
The north-south dividing line of China is 1908, which was put forward by Zhang, the first president of China Geographical Society (now China Geographical Society), from the perspective of physical geographical division. The "Beiling Huaishui" line runs from the seashore to Huai 'an, Jiangsu Province, to Xinyang, Henan Province, and finally to Ankang, Shaanxi Province. It is about several thousand kilometers long and dozens of kilometers wide.
In the course of historical development, this line is also the dividing line between the north and the south of China. The climate on both sides of this dividing line is very different, and its main significance is to serve as a reference for the growth of crops and local residential buildings. At that time, this consideration did not start from people's feelings about temperature, so the Ministry of Construction should not take this dividing line as the standard and set it as the dividing line of central heating.
At that time, the Ministry of Construction stipulated that the dividing line was the standard, and central heating was not implemented in the south. However, the dividing line has been formulated for a hundred years. During this period, with the global climate change, El Nino and other phenomena lead to frequent extreme climate. The most typical case is the large-scale snowstorm in South China in 2008, which also severely tested the winter heating mechanism in South China.
According to the regulations of the Ministry of Construction, the Qinling Mountains had a certain barrier effect on the cold and hot air in the north and south. The south belongs to temperate monsoon and subtropical monsoon climate, and the lowest temperature in winter does not exceed MINUS 5 degrees, and the winter duration is short. There is no need to invest a lot of manpower and material resources in laying and installing heating pipes.
The north is backed by the hinterland of Eurasia, and it is influenced by Mongolian low-pressure cold air in winter, which lasts for a long time, so it is more economical to use pipeline heating. But in fact, the temperature "no more than MINUS 5 degrees" was the reference data when central heating was formulated. According to the latest statistics, the average winter temperature in many areas of the "South" often breaks this record.
During a cold air attack from June 5th to1October 28th, 2008, the temperature in most parts of Hunan Province had already dropped to below zero, with the lowest temperature in Liuyang, Changsha dropping to about 5 degrees below zero. On June 5438+ 10, 2009, the temperature of -8 degrees appeared in Shanghai, which fluctuated between zero degrees for about a week.
Baidu Encyclopedia-Northern Region
Phoenix. The division between north and south is unscientific.
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