Which plain is Hefei located in?

Hefei is located at the junction of Huanghuai Plain and the middle and lower reaches of the Yangtze River. Macroscopically, it is the northern boundary of the central plain of Anhui Province, belonging to the middle and lower reaches of the Yangtze River, located in the Huaiyang hills, and is the watershed between the Yangtze River basin and the Huaihe River basin. Specifically, it is located on the alluvial plain of Donghefei River and Nanhefei River.