계절 Mann-Kendall 검정을 이용한 낙동강 유역의 월별 수질 장기 경향성 분석open accessTrend Analysis of Monthly Water Quality Data in Nakdong River Based on Seasonal Mann-Kendall Test
- Other Titles
- Trend Analysis of Monthly Water Quality Data in Nakdong River Based on Seasonal Mann-Kendall Test
- Authors
- 윤정혜; 황세운; 김동현; 김상민
- Issue Date
- Nov-2015
- Publisher
- 한국농공학회
- Keywords
- water quality; Nakdong river; seasonal Mann-Kendall test; trend analysis
- Citation
- 한국농공학회논문집, v.57, no.6, pp 153 - 162
- Pages
- 10
- Indexed
- KCI
- Journal Title
- 한국농공학회논문집
- Volume
- 57
- Number
- 6
- Start Page
- 153
- End Page
- 162
- URI
- https://scholarworks.gnu.ac.kr/handle/sw.gnu/17843
- DOI
- 10.5389/KSAE.2015.57.6.153
- ISSN
- 1738-3692
2093-7709
- Abstract
- In this study, we analyzed the trends of water quality along the main stream in Nakdong river basin using the recent data and seasonal Mann-Kendall test.
Monthly averaged values of DO, BOD, SS, COD, TN, and TP from 1989 to 2014 for 14 stations (including 2 TMDLs stations) were used in the study.
The trend analysis results showed that BOD and TP at most stations has decreasing temporal trend except a few stations while COD and SS showedincreasing trend at most stations. Temporal trends in TN at 8 stations were found to be statistically significant and 5 of them showed increasing temporaltrend. Temporally averaged BOD, COD, TN and TP were generally increasing as going downstream and the worst water quality were found at Goryeongand Hyunpung station. Overall, water quality of Nakdong river especially in COD, SS, and TN getting worse in time at most stations and as goingdownstream.
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Collections - 농업생명과학대학 > Department of Agricultural Engineering, GNU > Journal Articles

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