Microbial Processes > Long-Term Soil Productivity (LTSP) Study > Forest Locations > Central States

The upland oak-hickory forest is the single most extensive forest type in the Nation, south of Alaska. Covering over 114 million acres from central Texas to the Dakotas, and eastward to the Appalachian Mountains, this forest is found in all topographic positions with moist subhumid to dry subhumid climates. Soils often are gravelly and are formed from a variety of materials of glacial and sedimentary origin. LTSP collaboration between the Forest Service's North Central and Northeastern Research Stations and the Eastern Region is underway in Missouri and West Virginia.

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