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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 229 - 240 (12page)
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초록· 키워드
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Rain events are extremely important for phosphorus (P) dynamics in rivers since large portions of annual river P loads can be transported in particulate forms during only a few major events. Despite their importance, a precise estimation of P contribution in river sediments after rainy seasons has rarely been reported. This study estimated the longitudinal variation in the concentrations of different inorganic P fractions in bed sediments of the South Han River over a rainy season, through using the sequential extraction method. Non-apatite P was the dominant form, representing more than 60% of total inorganic P (TIP) content in sediments. Although no significant variation of TIP contents was observed, the proportion of bioavailable P in TIP pools decreased after the rainy season. The concentrations of individual inorganic P fractions (NH₄Cl-P, NH₄F-P, NaOH-P, and H₂SO₄-P) were significantly different across sites and after the rainy season (p < 0.05, two-way ANOVA). NH₄F-P and NaOH-P concentrations in sediments increased in a downstream direction. After the rainy season, NH₄Cl-P concentrations in sediments decreased whereas NH₄F-P and H₂SO₄-P concentrations increased. The redistribution of individual P fractions in sediments observed after rainy seasons were possibly due to the changing contribution of various sources of runoff and the variation in flow related particle size. Current estimation of P in bed sediments of the South Han River suggests a lower potential of internal P loading from sediments after the rainy season.
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참고문헌 (51)
참고문헌 신청
1. [단행본] - Welch EB / 1992 / Ecological effects of wastewater: applied limnology and pollutant effects / CRC Press
2. [학술지(정기간행물)] - Withers PJ / 2008 / Delivery and cycling of phosphorus in rivers: a review / Sci. Total Environ 400 : 379 ~ 395
3. [학술지(정기간행물)] - Pacini N / 1999 / Speciation of riverine particulate phosphorus during rain events / Biogeochemistry 47 : 87 ~ 109
4. [기타자료] - Rickard C / 2003 / River weirs: good practice guide / Environment Agency
5. [학술지(정기간행물)] - Mortimer CH / 1971 / Chemical exchanges between sediments and water in the Great Lakes-speculations on probable regulatory mechanisms / Limnol. Oceanogr 16 : 387 ~ 404
2. [학술지(정기간행물)] - Withers PJ / 2008 / Delivery and cycling of phosphorus in rivers: a review / Sci. Total Environ 400 : 379 ~ 395
3. [학술지(정기간행물)] - Pacini N / 1999 / Speciation of riverine particulate phosphorus during rain events / Biogeochemistry 47 : 87 ~ 109
4. [기타자료] - Rickard C / 2003 / River weirs: good practice guide / Environment Agency
5. [학술지(정기간행물)] - Mortimer CH / 1971 / Chemical exchanges between sediments and water in the Great Lakes-speculations on probable regulatory mechanisms / Limnol. Oceanogr 16 : 387 ~ 404
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UCI(KEPA) : I410-ECN-0101-2017-539-001539169