Abstract: The data of 7 soil moisture monitoring sites in 3 counties in Henan Province were applied to verify the adaptability of integrated diagnostic model of soil moisture in humid regions in Central China. Model was established by the data of 7 monitoring sites in 3 counties in Henan Province during the period of 2012-2014, and validated by the data of 2015. The results showed that the model had good adaptability in semi-humid regions of Henan Province, and the qualification rate was over 80%. In the same climatic region, the seasonal precipitation had a greater impact on the prediction qualification rate of the model, which indicated new research content for improving the prediction qualification rate of model in the future. Integrated diagnostic model can be used in semi-humid areas of Central China.

Key words: rubber, antioxidant enzyme, osmotic substance, aluminum toxicity, chlorophyll fluorescence.