우리나라 주요 호소의 수질 변동 경향성 분석 및 유형화

Title
우리나라 주요 호소의 수질 변동 경향성 분석 및 유형화
Author
김백호
Keywords
reservoir; trend analysis; self-organizing map; SOM; classification; hydrogeomorphometry; water quality
Issue Date
2014-09
Publisher
한국하천호수학회, 2014.
Citation
생태와 환경, 2014, 47(30), p.146-158
Abstract
In this study, we evaluated the temporal changes of water quality in the 90 reservoirs in Korea and the relationships between water quality and their environmental factors in the reservoirs for effective management of reservoirs. The majority of study reservoirs were categorized as the eutrophic state based on Carlson’s trophic index. Among 90 reservoirs, more than 55.0% were nutrient-rich based on TSITP in each month, where more than 50.0% were nutrient-rich based on TSIChl-a from June to November. Seasonal Mann- Kendall test was used to analyze temporal variation of water quality in the selected 60 reservoirs using monthly data from 2004 to 2008. The results showed that 27 (45.0%) reservoirs showed the improvement of water quality based on TP and Chl-a concentrations, while 14 (23.3%) and 11 (18.3%) reservoirs displayed the degradation of water quality based on TP and Chl-a concentrations, respectively. Meanwhile, a self-organizing map classified the study reservoirs into five groups based on differences of hydrogeomorphology (altitude, catchment area, bank height, lake age, etc.). Physicochemical factors and land use/cover types showed clear differences among groups. Finally, hydrogeomorphology of reservoirs were related to water quality, indicating that the hydrogeomorphological characters strongly affect water quality of reservoirs.
URI
http://www.jksl.or.kr/journal/article.php?code=18090http://hdl.handle.net/20.500.11754/48224
ISSN
2288-1123; 2288-1115
DOI
10.11614/KSL.2014.47.3.146
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > LIFE SCIENCE(생명과학과) > Articles
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