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http://dx.doi.org/10.14397/jals.2014.48.6.21

Analysis of Characteristics of Naturalized Plants in Reservoirs of Gyongsan-si  

Sung, Jung-Won (Department of Landscape Architecture, Graduate School of Yeungnam University)
Kim, Young-Joo (Department of Agricultural Engineering(Insti. of Agri. & Life Sci.), Gyeongsang National University)
Kwon, Jin-Wook (Department of Landscape Architecture, College of Natural Resources, Yeungnam University)
Kim, Keun-Ho (Department of Landscape Architecture, College of Natural Resources, Yeungnam University)
Publication Information
Journal of agriculture & life science / v.48, no.6, 2014 , pp. 21-37 More about this Journal
Abstract
The aim of the research was to analyze characteristics of naturalized plants in reservoirs of Gyongsan-si to provide necessary information for future management of naturalized plants. All plants were identified and recorded by using field surveys. The results showed that 164 taxa in total (62 families, 126 genera, 148 species, 13 varieties and 2 forms) were found and the numbers of naturalized plants was 23 taxa: 9 families, 19 genera, 22 species, 1 varieties. 65%(15 taxa) of the total population were originated from North America, followed by Europe(21.7%(5 taxa)), Africa(8.7%(2 taxa)) and Asia (4.4% (1taxa)). 9 taxa in naturalized plants were invaded during the third period(1964-present). Naturalized Index(NI) and Urbanization Index(UI) were 13.9% and 7.2%, respectively. This result indicated that NI of the study area was higher than the Korean average of NI(10.3%) suggested by Ko(1995). Finally, the research found 14 taxa (Rumex crispus L., Lepidium virginicum L., Trifolium repens L., Oenothera biennis L., Taraxacum officinale Weber, Erigeron annuus (L.) Pers., Ambrosia artemisii folia L., Aster pilosus Willd., Aster subulatus var. sandwicensis A. G. Jones, Bidens frondosa L., Lactuca scariola L., Panicum dichotomiflorum Michx.) that would have a negative impact on reservoir ecosystems. Therefore, the proper management and monitoring for these naturalized plants would be introduced to protect natural species and landscape in reservoirs.
Keywords
Naturalized index; Naturalized plant; Reservoir; Urbanization index;
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Times Cited By KSCI : 5  (Citation Analysis)
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