Abstract:
In order to understand the drought situation and characteristics in Anhui Province,the drought situation in the north and south of Huaihe River was analyzed. Four indicators were selected to establish drought index evaluation system, including percentage of incoming water anomaly,rate of change of groundwater depth,precipitation anomaly percentage and relative humidity ofsoil. A single indicator evaluation was conducted on the study areas of the south and the north of the Huai River, and the fuzzy comprehensive evaluation method was used to comprehensively evaluate the drought situation. The evaluation showed that the drought situation in the north of Huaihe River in Anhui Province in late spring and early summer of 2022 was moderate drought. The evaluation showed that the drought situation in the south of Huaihe River in Anhui Province from July 11th to October 1st in 2022 was severe drought. The results can provide reference for drought assessment and disaster prevention and mitigation in Anhui Province.