桐城市地处江淮丘陵,大别山余脉,濒临长江。境内自西北向东南依次为山区、丘陵、平原、圩畈等不同的地形地貌,年平均气温15～16℃,年降雨量1400～1500mm,无霜期230～250天,光照充足,雨水充沛,四季分明。随着“五年消灭荒山,八年绿化安徽”规 Tongcheng City is located in Jianghuai hills, Daba Mountains Mountains, on the brink of the Yangtze River. The territory from the northwest to southeast, followed by mountains, hills, plains, cusps and other different topography, the annual average temperature of 15 ~ 16 ℃, the annual rainfall of 1400 ~ 1500mm, frost-free period of 230 to 250 days, adequate sunshine, abundant rainfall, four seasons . With “five years to eliminate the barren hills, eight years of green Anhui ” regulation