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http://dx.doi.org/10.17820/eri.2019.6.3.154

GIS-based Assessment of the Lateral Connectivity in the Cheongmi-cheon Stream, South Korea  

Jin, Seung-Nam (Survey and Research Team, ECOnGEO)
Cho, Hyunsuk (Korea Research Institute of Bioscience and Biotechnology)
Chu, Yunsoo (Wetland Research Team, National Institute of Ecology)
Cho, Kang-Hyun (Department of Biological Sciences, Inha University)
Publication Information
Ecology and Resilient Infrastructure / v.6, no.3, 2019 , pp. 154-162 More about this Journal
Abstract
Lateral connectivity between the channel and the floodplains has been damaged by the levee construction and channelization in most streams of South Korea. The purpose of this study was to develop a technique for easily and remotely assessing lateral connectivity using GIS in the streams and to evaluate the effectiveness of the assessment method by applying it to Cheongmi-cheon Stream, a representative stream in the central Korean Peninsula. The metrics of the lateral connectivity assessment are composed of (1) existence of remaining wetlands and (2) land use property as a habitat quality of the former floodplain outside the levee and (3) existence of levee barrier, (4) connectivity to the stream and (5) connectivity to the upland natural habitats as a connectivity from the channel through floodplain to the upland forest. According to the result of applying the assessment method to Cheongmi-cheon Stream, the lateral connectivity was severely damaged due to the levee construction and land use change in the former floodplain. The GIS-based assessment of the lateral connectivity developed in this study is expected to be used as a useful tool for identifying limitations of current connectivity in various attempts to restore lateral connectivity in riparian ecosystems.
Keywords
Geographical information system; Isolated floodplain; Land use; Lateral connectivity; Stream;
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Times Cited By KSCI : 4  (Citation Analysis)
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