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    Author(s): Louis. R. Iverson; Paul. G. Risser; Paul. G. Risser
    Date: 1987
    Source: Advances in Space Research. 7(11): 183-194.
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (1.1 MB)


    Geographic information systems and remote sensing techniques are powerful tools in the analysis of long-term changes in vegetation and land use, especially because spatial information from two or more time intervals can be compared more readily than by manual methods. A primary restriction is the paucity of data that has been digitized from earlier periods. The Illinois State GIS has a number of automated data sets containing land-use information, including original land survey plat maps that show the boundaries of forests, prairies, and wetlands as they existed prior to European colonization in the early 1800s. Profound changes have occurred in the Illinois landscape since European settlement, primarily because of conversion to agricultural use; in certain parts of the state, however, urbanization has been the major factor contributing to changes.

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    Iverson, Louis. R.; Risser, Paul. G. 1987. Analyzing long-term changes in vegetation with geographic information system and remotely sensed data. Advances in Space Research. 7(11): 183-194.


    geographic information systems, remote sensing, land-use change, GIS

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