Soil Areas of Tennessee
Soils of the Major Stream Bottoms
This region comprises the bottom land of the Mississippi, Tennessee and Cumberland Rivers and their tributaries and is characterized by flat or nearly flat area of productive soils that range from loamy to clayey. The loamy soils around the streams are mostly well drained. This is the most intensively cultivated area in Tennessee. Soybean, cotton, corn, wheat and hay are the principal crops. Bottom land hard woods occupy the wettest places.
Soils of the Loess Region
Soils of the Coastal Plains Region
The coastal plain region is predominantly hilly. The soils formed mainly in sand and clays deposited by ancient seas. The soils are highly leached, low in fertility, and strongly acidic. Most are moderately or well drain but tract of poorly drained soils is common on the bottoms, terraces and depression areas on the upland. Good quality cropland is maintained on the bottom and terraces which are intensively cropped for soybean, corn, and cotton.
Soils of the Highland Rim
This region consist of predominantly undulating to hilly eastern, northern, and southern parts. The western is more dissected and ranges from hilly to steep except for a few isolated gently rolling plains. The soils are underlain by limestone. The soils on the hills sloped formed from limestone and have clayey and cherty subsoils. on the smooth area and hill cap the soils formed from thin loess and limestone residuum. Forest, hay and pasture are the main uses. Corn, soybean, small grains, nursery, and tobacco are crops commonly grown on the gently sloping land.
Soils of the Outer Part of Nashville Region
The region consist of predominantly hilly and steep with widely scattered tracts of undulating and rolling land. Nearly all of the area is underlain by phosphatic limestone. Outcrops of limestone is evident in some locations. some of the higher hills, especially on the southern part, are capped with cherty limestone. the soils range from shallow to deep over rock and medium to high in phosphorus. Some of the uplands have deep well drained soils and known for their phosphorus content and high productivity. Pasture and forest occupy the largest acreage.
Soils of the Inner Part of Nashville Region
Soils of the Cumberland Plateau and Mountains
The terrain in this region is a gently rolling to hilly highlands marked on each side with a prominent escarpment. The soils in this area are underlain by Pennsylvanian sandstones and shales. The soils formed either directly from these rocks or from materials weathered from them and moved downslope. The dominant soil are about 2-4 feet deep over the rock, well drained, loamy, low in natural fertility. Much of the region is forested. The cleared land is used largely for hay and pasture and small field crops of such as corn, vegetable, soybean, and tobacco.