Why is there a big difference in winter temperatures between the north and the south?

China enjoys an excellent geographical position. Both land and sea, rivers radiate from west to east, and mountainous areas are rich in resources.

1. From the latitude position, China's territory spans a vast latitude from north to south, most of which are located in the mid-latitude area, belonging to the north temperate zone, and a few areas in the south are located in the tropics south of the Tropic of Cancer, with no frigid zone. Only on high mountains can there be a year-round ice and snow belt similar to the cold zone.

2? From the land and sea position, China is located in the east of Asia-Europe continent, the largest continent in the world, and its west is deep inside Asia-Europe continent, bordering many countries. The east is close to the Pacific Ocean, which is the largest ocean in the world and has many islands and ports. This is a country with both land and sea. ? The temperature difference between north and south is very large: 1. Latitude position: in winter, the sun shines directly in the southern hemisphere, and the height of the sun in the north is low, the day is short, the light and heat on the ground are less, and the temperature is low; 2. The influence of winter wind: the source is close to the north, and the south intensifies the cold in the north.

3. China is adjacent to the Pacific Ocean in the east, which makes the vast area in the east affected by humid airflow and abundant rainfall, which is beneficial to agricultural production; Rich in marine resources; There are many excellent harbors along the coast, which are convenient for developing maritime transportation and strengthening ties with overseas countries;

4. The west goes deep into the Eurasian continent, borders many countries, and can directly communicate with Central Asia, West Asia and Europe.

5. Latitude position and climate difference between north and south provide favorable conditions for China to develop diversified agricultural economy.

China is located in the east of Asia and the west coast of the Pacific Ocean. It has a vast territory with a total area of about 9.6 million square kilometers, ranking third in the world and fourth in the United States, second only to Russia and Canada. Almost as big as the whole of Europe.

China's topography is high in the west and low in the east, showing a ladder-like distribution. Mountains and plateaus cover a vast area. The distance from east to west is about 5000 kilometers, and the continental coastline 18000 kilometers. The combination of temperature and precipitation is varied, forming a variety of climate.

There are 34 provincial administrative units, including 23 provinces, 5 autonomous regions, 4 municipalities directly under the Central Government and 2 special administrative regions.

The outstanding characteristics of population are large population base, rapid population growth and numerous ethnic groups. Rich in resources, but relatively few per capita resources. China can be divided into four parts: northern region, southern region, northwest region and Qinghai-Tibet region.