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Correlation between Biotic Factor and Abiotic Factor - Focus on the Case Streams in Kyonggi District -  

Kim, Hyea-Ju (Institute of Landscape Planning Hyea-Ju Kim)
Kim, Song-Yee (Institute of Landscape Planning Hyea-Ju Kim)
Kim, Chang-Wan (Korea Institute of Construction Technology)
Publication Information
Korean Journal of Environment and Ecology / v.20, no.4, 2006 , pp. 374-390 More about this Journal
Abstract
The analysis of correlation between the 9 element (used as the classification standard of stream typology out of the 25 elements pertinent to the survey of hydromorphological structure) and both emerged benthic macroinvertebrate as well as vegetation indicated that the substrate diversity, curvature, and degree of development of the transverse bar had a high correlation with the species composition. Only COD concentration was found to have the statistically significant correlation with the distribution of benthos among the 12 aquatic and chemical elements. Specifically, the analysis of the biotic and abiotic factors in this study indicated that there was a statistically significant correlation between the sand river and cobble river in the positive(+) and negative(-) aspects, suggesting that there is a distinctive difference between the two types of rivers in terms of hydromorphologlcal structure and ecological characteristics. Therefore, the findings of this study imply that the consideration of a biotop is prerequisite for the evaluation of stream status regarding stream restoration or the ecological topology of streams.
Keywords
HYDROMORPHOLOGICAL STRUCTURE; STREAM TYPOLOGY; CORRELATION ANALYSIS; SUBSTRATE DIVERSITY; TRANSVERSE BAR;
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