Based on the self-developed “crop drought monitoring system” project supported by the “863 Project”, CEODE research staff used MODIS data (Resolutions: 250 meters) to monitor the growth of winter wheat for Henan, Shandong, Hebei, Shanxi, Shaanxi, Jiangsu, and Anhui provinces in late January. The comparative analysis of historical data in the same time was conducted.

Research staff built three levels of RS monitoring of the ravages of a drought: light drought, medium drought and heavy drought. The vegetation index declined under 15%, under 35% and 35%. Based on the statistics, winter wheat in North China has been severely affected. The disaster square in South Hebei, Shandong, North Anhui, and North Jiangsu is quite large. The medium and heavy drought regions are mainly distributed in Jiangsu, Anhui and the Shandong Peninsula. The proportion of heavy drought exceeded 20%.

In the middle of February, CEODE used MODIS data to monitor disaster situations. Lasting dynamic monitoring on the main winter wheat regions was conducted. The drought level in Beijing, Shanxi, Henan and Hebei provinces lightened, while the drought area in northern Anhui and Shandong provinces dramatically expanded. Preventing heavy drought and medium drought needs to be highly emphasized, with the water requirements for winter wheat strengthened after winter.

The 7 Provinces Monitoring Results of Late January,2011

The 7 Provinces Monitoring Proportion Results（%）

 

The 7 Provinces Monitoring Results of Middle Feburary,2011

The 7 Provinces Monitoring Proportion Results(%)