CAJ | 학술논문

针对目前三峡库区水力控藻仍然缺乏有效工具的问题，利用2010—2011年大昌和大宁河口实测水文、水质数据，基于EFDC富营养化模块，构建了三峡库区大宁河口三维富营养化模型，并利用双龙和龙门断面实测数据进行了模型参数率定和验证。结果显示水温模拟效果最好，模拟值与实测值高度吻合，各误差统计量也较小，如相对误差均小于10％；总氮和总磷模拟值与实测值有一定偏差，吻合度依然较好，总氮相对误差均小于40％，总磷最大相对误差为67．002％；叶绿素a模拟误差较大，但仍能很好模拟叶绿素a变化趋势。该模型可为后续开展三峡水力调度抑制“水华”爆发提供技术支持。
침대목전삼협고구수력공조잉연결핍유효공구적문제，이용2010—2011년대창화대저하구실측수문、수질수거，기우EFDC부영양화모괴，구건료삼협고구대저하구삼유부영양화모형，병이용쌍룡화룡문단면실측수거진행료모형삼수솔정화험증。결과현시수온모의효과최호，모의치여실측치고도문합，각오차통계량야교소，여상대오차균소우10％；총담화총린모의치여실측치유일정편차，문합도의연교호，총담상대오차균소우40％，총린최대상대오차위67．002％；협록소a모의오차교대，단잉능흔호모의협록소a변화추세。해모형가위후속개전삼협수력조도억제“수화”폭발제공기술지지。
Effective tools of controlling algae bloom by hydraulic regulation are still in lack for the Three Gorges Reservoir Area.In view of this,a 3D eutrophication model based on EFDC (Environmental Fluid Dynamics Code) eutrophication module was built using the meteorological,hydrological and water quality data of 2010 and 201 1 in Dachang section and Daning River estuary.Measured data of Shuanglong and Longmen sections were employed for model calibration and validation.Results show the water temperature modeling works best with the simulated and observed values highly consistent and error statistics small (relative error smaller than 10%).Moreover,the simu-lated and observed values of total nitrogen and total phosphorus are well consistent,nevertheless with some devia-tions:the relative error of total nitrogen is smaller than 40%,and the maximum relative error of total phosphorus is 67.002%.There are large deviations in chlorophyll-a simulation,but the trends of chlorophyll-a variation could still be well reflected.This model provides technical support for controlling algae bloom by hydraulic scheduling.