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한국하천호수학회 / v.42, no.4, 2009년, pp.432-440 
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( Long-term Paradigm Analyses of Chlorophyll a and Water Quality in Reservoir Systems ) |
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| 초 록 |
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| During the period of past fifteen years (1992~2006), variations of chlorophyll a in relation with water quality in freshwater reservoirs were investigated. This study compared total nitrogen (TN), total phosphorus (TP), chlorophyll a, Secchi depth (SD) and total suspended solids (TSS) between terrestrial freshwater reservoir and coastal freshwater reservoir systems based on their location. Regression analyses (linear and non-linear regressions) were applied for all study sites to examine relationship and interaction of these factors in the freshwater systems from in-land to coasts. The results demonstrated that chlorophyll a was significantly correlated to total phosphorus ($R^2=0.94$, P<0.0001) and was remarkably related to TSS increase ($R^2=0.63$, P<0.0001) in the selected reservoirs. The TN : TP ratio in the reservoir systems was higher than Redfield ratio (16 : 1) indicating that the reservoirs are potentially experiencing P limitation. Water quality of coastal freshwater reservoir system was more significantly decreased than the reservoirs located in in-land during the past fifteen years. The strict management of nutrient discharge into freshwater systems should implemented in the coastal reservoirs since the freshwater is introduced into coastal estuarine systems. |
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| 키워드 |
| long-term data;water quality;chlorophyll a;nutrient limitation;coastal estuarine systems; |
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한국하천호수학회지 / v.42, no.4, 2009년, pp.432-440
한국하천호수학회
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912763359599)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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