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http://dx.doi.org/10.13047/KJEE.2018.32.1.105

Health Condition Assessment Using the Riparian Vegetation Index and Vegetation Analysis of Geumgang mainstream and Mihocheon  

Lee, Seung-Yeon (Dept. of Life Science, Kongju National University)
Jang, Rae-Ha (Task Force for Construction of National Center for Endangered Species Restoration)
Han, Young-Sub (National Institute of Ecology, Division of Ecological Monitoring, Bureau of Ecological Research & Assessment)
Jung, Young-Ho (Dept. of Life Science, Kongju National University)
Lee, Soo-In (Dept. of Life Science, Kongju National University)
Lee, Eung-Pill (Dept. of Life Science, Kongju National University)
You, Young-Han (Dept. of Life Science, Kongju National University)
Publication Information
Korean Journal of Environment and Ecology / v.32, no.1, 2018 , pp. 105-117 More about this Journal
Abstract
This study conducted health assessment and multivariate vegetation analysis using the riparian vegetation index in 30 sites of the Geumgang mainstream and Mihocheon to obtain practical data on the river management of the Geumgang. The result showed that the number of plant communities was 54. The flora was 75 families, 185 genera, 243 species, 2 subspecies, 21 varieties, 2 varieties, and 268 taxa. The riparian vegetation index was 38.3 (3.3; G-D1 ~ 66.7; G-U2, G-U4, and G-M3), and the health of the rivers in this area was evaluated as normal (grade C). The health of rivers was the highest in the upper stream of Geumgang mainstream and lowest in the downstream of Geumgang mainstream. The relationship between riparian vegetation index and chlorophyll-a content was low. The riparian vegetation was divided into five groups of Digitaria ciliaris colony group, Salix gracilistyla colony group, Erigeron annuus colony group, the group dominated by Humulus japonicus, Salix koreensis, Miscanthus sacchariflorus, and Phragmites japonica colonies, and the group dominated by Conyza canadensis and Echinochloa crusgalli var. echinata colonies. They had the similar health conditions. The CCA analysis showed that the environmental factors affecting the distribution of vegetation were physical factors such as vegetation area, artificial structure area, waterway area, branch width, channel width, and bank height and the biological factors such as the number of species. As such, it is necessary to maintain the health condition through continuous monitoring where the health condition is high and to apply active measures such as ecological restoration where the health condition is low.
Keywords
RIPARIAN VEGETATION INDEX; RIVER MANAGEMENT; ORDINATION;
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Times Cited By KSCI : 2  (Citation Analysis)
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