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Distributional Patterns and the Evaluation of Hydrophytic Plants of Urban Wetlands in Seongnam City, Gyunggi-do Province, Korea  

Chun, Seung-Hoon (Dept. of Landscape Architecture, Kyungwon Univ.)
Publication Information
Korean Journal of Environment and Ecology / v.22, no.2, 2008 , pp. 159-172 More about this Journal
Abstract
This study was carried out to obtain ecological information necessary for a conservation plan based on the distributional patterns, wetland types, and hydrophytic characteristics of urban wetlands in Seongnam City, Kyunggi Province where representing the various patterns of land use made by rapid urbanization since 1970s. Total 162 sites of four wetland types were identified as urban wetlands during the first survey. The sites were classified into 55 forested swamps, 4 riverine wetlands, 62 abandoned paddy fields, 37 small ponds, and 4 reservoirs, etc. The second survey targeted 107 sites which were identified as good wetlands. It showed that 42 sites(about 39%) were already degraded due to drainage, landfill, and crop cultivation at 6 months intervals. Both hydrologic conditions and hydrophytic characteristics of 27 good wetlands help maintain current ecological status, but most wetlands have been degraded by artificial impacts. Among 184 species identified, only 75 species(about 40.7%) were hydrophytes. Prevalence Index of hydrophyte based on three categories of OBL(obligatory wetland plant), FAC(facultitative plant), UPL(obligatory upland plant) was 3.7, indicating that vegetation data alone is inadequate to designate as wetlands. This study revealed that as critical habitats for wildlife they playa vital role in ecotone between both terrestrial and aquatic ecosystem with its proper distributional pattern in spite of their small areas compared to the entire geographic region of the City.
Keywords
URBAN WETLAND; WETLANDS TYPES; PREVALENCE INDEX; ECOTONE;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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