Three climatic divisions in Yili

Ili region spans temperate continental climate and alpine climate type, with a humid and mild climate, and is known as "Jiangnan beyond the Great Wall" and "Wet Island of Central Asia". The annual average temperature in the whole region is 2.9C-9. 1C, and the frost-free period is 149 days, which is rich in light and heat resources and suitable for the growth of various crops. Tacheng area belongs to the arid and semi-arid climate zone in the middle temperate zone. The plain area is hot in summer and cold in winter, and the annual and daily changes of temperature are great. In mountainous areas, it is warm in winter and cool in summer, and the heat is insufficient. The annual average temperature in the whole region is 3℃~ 7.3℃, and the frost-free period is the longest, with an average of 65,438 0.58 days. There is plenty of sunshine, and light-loving crops grow well. Altay region has a high latitude and belongs to a typical continental cold climate in the north temperate zone. The temperature distribution is banded with the elevation of the terrain, and the temperature varies greatly among mountains, plains, basins and deserts. The annual average temperature is 0.2C-4C, and the frost-free period is 139 days. Compared with the other two areas, it belongs to the low-value area of light and heat resources, but it has less rainy weather and good atmospheric transparency.