일본 기수호 (Lake Obuchi)에서 생태계 모델의 개발과 적용 = Development and Application of the Ecosystem Model in Brackish Lake Obuchi, Japan

다국어 초록 (Multilingual Abstract)

In order to evaluate the water quality (N, P and C) and the biological mass balance of semi-enclosed brackish Lake Obuchi, Japan, an ecosystem model was developed and applied to the lake, using the flow field calculated by a hydrodynamic model. The time series data of the observed tide level, river discharge and meteorological parameters from January 2001 to December 2002 were incorporated as the parameters of the hydrodynamic model. Water quality and biomass balance were estimated by the ecosystem model, and simulated fluctuations in water quality agreed with our observations. The carbon contents of POC, phytoplankton and zooplankton in the lake were calculated by the model at an average 7200, 1500 and 22 ㎏, respectively, which somewhat agreed with our observations of POC (5900 ㎏), phytoplankton (3800 ㎏), and zooplankton (150 ㎏).