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http://dx.doi.org/10.17820/eri.2015.2.1.054

Flora and Vegetation Structure in a 15-Year-Old Artificial Wetland  

Son, Deokjoo (School of Biological Sciences, Seoul National University)
Lee, Hyohyemi (Department of Eco-safety Research, National Institute of Ecology)
Lee, Eun Ju (School of Biological Sciences, Seoul National University)
Cho, Kang-Hyun (Department of Biological Sciences, Inha University)
Kwon, Dongmin (Assum Ecological System Inc.)
Publication Information
Ecology and Resilient Infrastructure / v.2, no.1, 2015 , pp. 54-63 More about this Journal
Abstract
This study was conducted to investigate the flora and vegetation structure at a 15-year-old artificial wetland for the water purification in Jincheon, Korea. The percentage of species number of obligate wetland plants and facultative wetland plants totaled 40%, whereas that of obligate upland plants and facultative upland plants was 57%. This result showed that the artificial wetland in the study experienced terrestrialization. The number of annual and biennial plants that are pioneer vegetation in a successional stage was lower than that of perennial herbs as a result of the long-term stabilization of vegetation. From the results of DCA (detrended correspondence analysis), water depth played an important role on the classification of vegetation structure in an old artificial wetland. Species diversity was higher in the terrestrialized plant communities such as Iris pseudacorus and Aster koraiensis than in any other wetland communities. Plant communities could be classified according to the wetland indices; obligate upland for A. koraiensis community, facultative wetlands for Carex dispalata var. dispalata and I. pseudacorus community, and obligate wetlands for Nymphoides peltata, Nymphaea tetragona, Phragmites communis, Potamogeton maackianus, and Typha angustifolia community. In conclusion, this result suggests that wetland vegetation should be maintained against terrestrialization through the proper management of sedimentation and hydrological regime in an artificial wetland.
Keywords
Artificial wetland; Terrestrialization; Vegetation; Wetland index;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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