| Title |
Characteristics and Reference Information of Riparian Vegetation for Realizing Ecological Restoration Classified by Reach of the River in Korea |
| Authors |
정성희 ( Jung Song Hie ) ; 김아름 ( Kim Areum ) ; 설재원 ( Seol Jaewon ) ; 임봉순 ( Lim Bong Soon ) ; 이창석 ( Lee Chang Seok ) |
| DOI |
https://doi.org/10.15681/KSWE.2018.34.5.447 |
| Keywords |
Integrity; Reference information; Riparian zone; River reach; River restoration |
| Abstract |
To realize river restoration that ecological characteristics of the river are reflected, we classified the river into four reaches of valley stream, upstream, midstream, and downstream based on substrate as well as riverbed gradient obtained from the relationship between distance from the river mouth, and above sea level. Considering that the rivers of Korea have been dominated by various and intense artificial interferences over a lengthy period, we determined cross sectional range of the river based on the geological map and clarified transformation degree by reach. Vegetation profile diagram was prepared by depicting horizontal range and vertical stratification of major vegetation appearing in a belt transect of 10 m breadth installed between weirs constructed in both sides of the river. Restoration models by river reach were prepared based on breadth of waterway, bare ground, herb, shrub, and tree dominated vegetation zones on vegetation profiles wherein a flooding regime was reflected. Species composition information collected from vegetation established in each zone was systematized to use for restoring each reach ecologically. Further, background that longitudinal reaches and horizontal zones were divided, was discussed by comparing with case studies in foreign countries. In addition, necessity of ecological restoration of the river was discussed based on degree of integrity of Korean rivers, ecological significance of riparian vegetation, and importance of reference information for ecological restoration of the river. |