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http://dx.doi.org/10.17820/eri.2017.4.2.097

Delineation and Land Use Analysis of the Former Floodplains Isolated by Levees in the Cheongmi-cheon Stream, Korea  

Jin, Seung-Nam (Department of Biological Sciences, Inha University)
Cho, Kang-Hyun (Department of Biological Sciences, Inha University)
Cho, Hyung-Jin (ECOnGEO)
Publication Information
Ecology and Resilient Infrastructure / v.4, no.2, 2017 , pp. 97-104 More about this Journal
Abstract
For the restoration of lateral connectivity between channel and floodplain, it is important to find the former floodplain and to characterize its land use in streams which were channelized by the levee construction for the flood protection. The aim of this study is to map the former floodplains and to assess its land use pattern in the Cheongmi-cheon Stream, Korea. The former floodplains were explored by being overlapped on a digital elevation model (DEM), digital topographic map and design flood level using a geographical information system (GIS) in the Cheongmi-cheon Stream basin. The land use of the identified former floodplains was classified by land-use map. The total number of the former floodplains was 104 and their total area was $11.9km^2$ in the Cheongmi-cheon Stream. The land use pattern of the former floodplains was mostly farmland (87.1%). The former floodplains were usually surrounded by mountain forest in the downstream of the Cheongmi-cheon Stream. These former floodplains are probably suitable for restoration of lateral connectivity because of lower ratio of urban area but higher ratio of farmland. The results of delineation and land use analysis of the former floodplain can be used as a baseline data for planning stream restoration in the Cheongmi-cheon Stream.
Keywords
Geographical information system; Isolated former floodplain; Land use pattern; Lateral connectivity; Stream;
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Times Cited By KSCI : 5  (Citation Analysis)
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