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Study on Types and Distributional Properties of Abandoned Channels in Korea  

Lee, Gwang-Ryul (Department of Geography Education, Teachers College, Kyungpook National University)
Publication Information
Journal of the Korean Geographical Society / v.46, no.3, 2011 , pp. 304-318 More about this Journal
Abstract
The types, distributional and shape properties of abandoned channels in Korea are classified and examined. There are 409 abandoned channels in Korea and they can be classified into the 6 types such as the incised meander cutoff, stream piracy, distributary, artificial incised meander neck-cutoff, channel straightening of free meander and distributary streams. The abandoned channels by incised meander neck-cutoff showing the most frequency with 266, have the topographical properties of high altitude and steep relief and frequently distribute in Gangwon and Gyeonbuk Province and in the upper reaches of main stream of Nakdong-River, and Dal-River and Pyeongchang-River, tributaries of Namhan-River. The most frequency areas of abandoned channels by distributary, channel straightening of free meander and distributary streams are the lower reaches of Namhan-River and main stream in the lower reaches of Nakdong-River, Mangyeong-River and Yeongsan-River, and Geumho-River, respectively. The abandoned channles by incised meandering neck-cutoff and stream piracy are relatively used as farmlands or forests due to the high altitude and relative altitude from the river bed.
Keywords
paleo-channel; meander neck-cutoff; channel straightening; stream piracy; incised meander; braided channel;
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