Abstract: The data of 19 soil moisture monitoring sites in 5 counties in Inner Mongolia were used to verify the adaptability of integrated diagnostic mode of soil moisture in the semi-arid regions in Inner Mongolia. Model was established by the data of 2012-2014, and validated by the data of 2015. The results showed that the model had good adaptability in the semiarid regions of Inner Mongolia, and the qualification rate was over 94%. There was no obvious pattern between the qualification rate of the model’s prediction and latitude and longitude, because all monitoring sites were located in semi-arid areas and rainfall difference was small. In conclusion, integrated diagnostic model can be used in semi-arid areas of Inner Mongolia.

Key words: Nantong City, principal component analysis, quality evaluation., ecological landscape, arterial highway