지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The objective of this study was to determine the effects of N:P ratio on primary productivity measured as chlorophyll-a (CHL) using the approach of In Situ Nutrient Enrichment Bioassays (NEBs) in Daechung Reservoir. The effects of NEBs on the N:P mass ratios were compared with the field data obtained from monthly-chemical monitoring during 2009~2012.
The short-term NEBs showed that the response of primary productivity in the phosphorus spiked treatments (5, 15, 20 and 30 N:P ratios) were greater than the responses in the control (C) and nitrogen spiked treatment (N:P ratio=150, TVI). The response in the nitrogen treatment (N:P ratio=150, TVI) was less compared to control and all five treatments (TI~TVI). The outcomes of the NEBs suggest that phosphorus limited the phytoplankton growth and nitrogen addition inhibited the algal growth. In the analysis of nutrients and CHL from the ambient epilimnetic water in Daechung Reservoir, minimum N:P ratios resulted in maximum concentrations of CHL.
Overall, our results suggest that the N:P ratio was the key factor in regulating the phytoplankton growth in NEB experiments.
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참고문헌 (20)
참고문헌 신청
An KG / 2000 / Temporal and spatial patterns in ionic salinity and suspended solids in a reservoir influenced by the Asian monsoon / Hydrobiologia 436 : 179 ~ 189
Box JD. / 1983 / Temporal variation in algal bioassays of water from two productive lakes / Archive For Hydrobiologie (Supplement) 67 : 81 ~ 103
Forsberg G / 1980 / Eutrophication parameter and trophic state indices in 30 Swedish waste receiving lakes / Arch. Hydrobiol 89 : 189 ~ 207
Hutchinson GE / 1975 / A treatise on limnology. Vol. 1, Geography, Physic and. Chemistry / John Wiley & Son, INC : 10 ~ 15
Kilham SS. / 1976 / Dynamics of Lake Michigan natural phytoplankton communities in continuous cultures along a Si:P loading gradient / Canadian J. fisheries aquatic Sci 43 :
Box JD. / 1983 / Temporal variation in algal bioassays of water from two productive lakes / Archive For Hydrobiologie (Supplement) 67 : 81 ~ 103
Forsberg G / 1980 / Eutrophication parameter and trophic state indices in 30 Swedish waste receiving lakes / Arch. Hydrobiol 89 : 189 ~ 207
Hutchinson GE / 1975 / A treatise on limnology. Vol. 1, Geography, Physic and. Chemistry / John Wiley & Son, INC : 10 ~ 15
Kilham SS. / 1976 / Dynamics of Lake Michigan natural phytoplankton communities in continuous cultures along a Si:P loading gradient / Canadian J. fisheries aquatic Sci 43 :
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