| Title |
Diagnostic Evaluation on the Riparian Vegetation in the Changwon and Nam Streams for Preparing a Restoration Plan |
| Authors |
안지홍 ( Ji Hong An ) ; 임치홍 ( Chi Hong Lim ) ; 정성희 ( Song Hie Jung ) ; 김아름 ( A Reum Kim ) ; 우동민 ( Dong Min Woo ) ; 이창석 ( Chang Seok Lee ) |
| DOI |
https://doi.org/10.15681/KSWE.2016.32.5.475 |
| Keywords |
Diagnostic evaluation; Ecological network; Restoration plan; Riparian vegetation |
| Abstract |
The Changwon and Nam streams that run through the Changwon city were evaluated based on longitudinal and horizontal configurations and vegetation state in order to prepare a restoration plan. Riparian vegetation of the Changwon and Nam streams are normally dominated by herbaceous plants. However, the woody plants, Salix pseudolasiogyne, Rubus parvifolius, Salix koreensis, Robinia pseudoacacia，and Amorpha fruticosa have appeared. Planting to introduce various types of plants for landscape architecture has also been observed. Evaluation of naturalness based on the vegetation state of both Changwon and Nam streams showed very low naturalness of degree 1 or 2, with the exception of a few reaches of the upstream sector. In these few reaches of the upstream sector, Salix koreensis and Salix chaenomeloides showed heights at the subtree level, however, they were located at the position of shrubland close to the waterway. These reaches were, therefore, evaluated as degree 3 rather than degree 4 in naturalness. The result of diagnostic evaluation classified by reach indicated the requirement for active restoration, such as transformation of the channelized stream into a meandering one and a step-type cross section into a pool-type one, introduction of vegetation suitable to the region and site, and creation of an ecological network between the stream and the surrounding terrestrial ecosystems. |