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The Identification of Limiting Nutrients Using Algal Bioassay Experiments (ABEs) in Boryeong Reservoir after the Construction of Water Tunnel KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/364737
The objective of the study was to determine nutrition regime and limitation in the Boryeng Reservoir where there’s a water tunnel between Geum River and the reservoir. Evaluation was conducted through in situ algal bioassay experiments (in situ ABEs) using the cubitainer setting in the reservoirs. For in situ ABEs, we compared and analyzed variations in chlorophyll-a (CHL-a) and phosphorus concentrations in Boryeong Reservoir before and after the water tunnel construction. We then analyzed the nutrient effects on the reservoir. Analysis for nitrogen and phosphorus was done in the three locations of the reservoir and two locations of the ABEs. The in situ ABEs results showed that phosphorous and Nitrogen, the primary limiting nutrient regulating the algal biomass was not limited in the system. The treatments of phosphorus or simultaneous treatments of N+P showed greater algal growth than in the control of nitrate-treatments, indicating a phosphorus deficiency on the phytoplankton growth in the system. The water from the Geum River had 5 times higher total phosphorus (TP) than the water in the reservoir. Efficient management is required as pumping of the river water from Geum River may accelerate the eutrophication of the reservoir.
INTRODUCTION
MATERIALS AND METHODS
1. Description of Sampling Sites and Algal Bioassays
2. In situ Algal Bioassays Experiments (ABEs)
RESULTS AND DISCUSSION
1. In situ Algal Bioassay Experiments (ABEs)
REFERENCES
