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A Study of the Geomorphological Process and Vegetation Distribution of Sand-bars on the Tan-cheon River  

Choi, Mi-Kyoung (Dept. of Water Resources and Environment, The Korean Institute of Construction Technology)
Lee, Sam-Hee (Dept. of Water Resources and Environment, The Korean Institute of Construction Technology)
Choi, Jung-Kwon (Dept. of Landscape Architecture, Kyungwon University)
Publication Information
Journal of the Korean Institute of Landscape Architecture / v.37, no.6, 2010 , pp. 96-105 More about this Journal
Abstract
This study identified the dynamic process of sandbar and vegetation distribution of the sandbar on the Tan-cheon River. The study area is located in the lower reaches of the Tan-cheon River that has been managed as an Ecosystem Reserve Area since 2002. For the study, the geomorphological process was analyzed through mapping analysis using a satellite image followed by analysis of the vegetation distribution through an on-site survey. The major findings were as follows : First, In the fluvial geomorphic process, various kinds of sandbars were developed in 1990s, the morphologic characteristics changing continuously. Second, In the distribution of vegetation on the sandbar, the sandbar shore was covered with bare sand substrate or intermittent annual vegetation because of the periodic fluctuation of the water-level due to intensive disturbances. Third, In the relationship between the sandbar formation and vegetation, four types of sandbars were classified: channel-shore stable bar, channel-shore unstable bar, mid-channel stable bar and mid-channel unstable bar, according to the fluvial disturbance & vegetation process. The study verifies that the vegetation distribution is reciprocally related to the geomorphological process. Accordingly, it is meaningful in the selection of plant species and the planting area of the sand bar. However, it is limited to the planting guidelines on river restoration projects. More diverse on-site experimental studies should be conducted.
Keywords
Disturbance; Riparian Vegetation; Spatial and Temporal Scale; Adaptive Management;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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