Abstract
Based on the daily data of temperature and precipitation from 7 meteorological stations in Maowusu Sandy Land from 2000 to 2020, linear regression analysis was used to clarify the characteristics of temperature and precipitation changes in the study area. The results show that the temperature in the Mu Us sandy land showed an overall upward trend from 2000 to 2020, with a growth rate of 0.09 ℃/(10a) and an average temperature of 9.26 ℃; The precipitation shows a fluctuating upward trend, with a growth rate of 4.06mm/a and an average precipitation of 373.75mm. Since the 21st century, there has been a discrepancy between the trend of temperature changes in the research area and global warming. The possible reason for this is the implementation of ecological engineering, which has improved the local climate characteristics of the research area and further affirmed the effectiveness of national ecological policies.
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