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http://dx.doi.org/10.11108/kagis.2013.16.3.025

Outlook Analysis of Future Discharge According to Land Cover Change Using CA-Markov Technique Based on GIS  

Park, Jin-Hyeog (K-water Institute, Korea Water Resources Corporation)
No, Sun-Hee (Dept. of Civil Engineering, Chungnam University)
Lee, Geun-Sang (Dept. of Cadastre and Real Estate, Vision University of Jeonju)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.16, no.3, 2013 , pp. 25-39 More about this Journal
Abstract
In this study, the change of the discharge according to the land cover change which acts as one of dominant factors for the outlook of future discharge was analyzed using SWAT(Soil and Water Assessment Tool) model for Yongdam and Daecheong Dam Watershed in the Geum River Basin. The land cover maps generated by Landsat TM satellite images in the past 1990 and 1995 were used as observed data to simulate the land cover in 2000 by CA-Markov serial technique and after they were compared and verified, the changes of land cover in 2050 and 2100 in the future were simulated. The discharge before and after the change of land cover by using input data of SWAT model was compared and analyzed under the A1B scenario. As a result of analyzing the trend in the elapses of year on the land cover in the Geum River Basin, the forest and rice paddy class area steadily decreased while the urban, bare ground and grassland classes increased. As a result of analyzing the change of discharge considering the future change of the land cover, it appeared that the discharge considering the change of land cover increases by 1.83~2.87% on the whole compared to the discharge not considering the change of land cover.
Keywords
Land Cover; CA-Markov Technique; Discharge; SWAT Model;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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