ABSTRACT
Agricultural researchers have tried from the turn of the 20th century to develop data and information bases that when interpreted can be used to improve the management of agricultural systems. Simulations are resources that can be used to supply data, information, and knowledge to decision makers in agriculture. Supplying information to managers involves interfacing between computer output and the people who are the information users. Computer programs including spreadsheets, expert systems, decision support systems, simulations, and similar items can be excellent sources of information for decision support. Increased understanding of ecosystem interactions, as influenced by the environment and management practices, has greatly expanded the potential for decision support systems. Simulations are critically important for addressing all problems associated with erosion, from issues related to sustainable productivity and sustainable agriculture to water quality and associated environmental impact. Erosion simulations are used for conservation planning, engineering design, erosion inventories, and government regulations.
