干旱区生态环境知识资源中心

Climate warming affects agricultural climate resources, especially the spatial and temporal distribution of heat resources. This paper analyzes the meteorological data in the meteorological stations in arid regions of northwest China and studies the changes and characteristics of temperature, frost and accumulated temperature in arid regions of Northwest China in recent 50 years. The study shows that the temperature is gradually increasing in the arid area of northwest China, which is higher than the average temperature rise in the whole country, among which the north of Xinjiang is the region with the highest temperature increase. In the winter, the warming rate in the northwest region is greatest. The area studied by us did not appear to increase the phenomenon of frost, the main performance is the delay of the first frost day and the end of the final frost days.