The distribution law of annual precipitation in Inner Mongolia Autonomous Region is that the annual precipitation gradually decreases from east to west. The reasons are as follows: the distance from east to west to the Pacific Ocean is gradually weakening; Blocked by mountains along the way, the water vapor gradually decreased.
The distribution characteristics of precipitation in an area can be divided into two parts: regional distribution and seasonal distribution. China is located in the east of Asia-Europe continent and the west coast of the Pacific Ocean, with great differences in thermal properties between land and sea, forming the most typical monsoon climate in the world. The precipitation in China is mainly brought by the southeast monsoon in summer.
The southeast monsoon brings the water vapor from the Pacific Ocean to China, and the southeast coastal areas of China will be the first to get the water vapor brought by the southeast monsoon, forming rich precipitation and becoming the region with the richest annual precipitation in China.
Judging from the regional distribution of annual precipitation, the annual precipitation in China generally decreases from southeast to northwest, and the northwest region of China has become the region with the least annual precipitation because it is located inland and far from the ocean.
climate
Inner Mongolia Autonomous Region is the province with the most obvious difference between dry and wet. It spans northeast China, north China and northwest China, from 97 east longitude to126 east longitude, spanning nearly 29 longitudes, making it one of the provinces with the longest span in China. At the same time, it is located in the mid-latitude area, and the terrain is mainly plateau terrain, which is relatively uniform and the dry and wet zones are obviously differentiated.
Daxinganling area in the east of Inner Mongolia Autonomous Region is close to the sea and belongs to monsoon climate. The natural zones are mainly temperate deciduous broad-leaved forest zone and sub-frigid coniferous forest zone. It is one of the important forestry bases in China, with a total area of more than 20 million hectares, ranking first in the country.