Primary data sources for this study are the South Dakota Department of Revenue and USDA’s South Dakota Agricultural Statistics Service. Other sources include the U.S. Forest Service, Bureau of Land Management, South Dakota Office of School and Public Lands, and the Western Wood Products Association.
These data are combined to capture in a single group the impacts of industries that produce or utilize agricultural commodities in South Dakota. Similar aggregations of data are made for other industries in the state. Thus, Standard Industry Code groupings have been modified for this study. For example, South Dakota industries that manufacture agricultural items are aggregated with agriculture and not with the manufacturing grouping.
SDSU Cooperative Extension Service
Beutler, Martin, "Impact of South Dakota Agriculture 2002" (2003). SDSU Extension Special Series. 20.