三峡库区支流富营养化模型开发研究  

Eutrophication model for the branch of Three-Gorges Reservoir

作　　者：李锦秀[1] 禹雪中[1] 幸治国[2] 

机构地区：[1]中国水利水电科学研究院水环境研究所,北京100038 [2]重庆市环境科学研究院,重庆400020

出　　处：《水科学进展》2005年第6期777-783,共7页Advances in Water Science

基　　金：国家自然科学基金重大项目资助"水利工程对重要生物水文与水动力环境的影响"(30490231)~~

摘　　要：为保护三峡库区水环境,应对库区支流富营养化演变态势进行模拟预测。以受三峡水库蓄水影响显著的代表性支流大宁河为例,在考虑营养盐、气候条件(包括水温和光照)对藻类生长速率影响的基础上,针对三峡库区特点,着重研究水动力条件对藻类生长速率的影响规律,进行富营养化模型综合开发研究,并利用三峡水库蓄水后大宁河回水影响区河段实测资料进行模型验证计算。结果表明,该模型能较好地反映三峡水库蓄水后,库区支流水环境条件发生显著变化状态下藻类生长繁衍特点,能够用来进行三峡库区富营养化预测,也可为其他类似水域研究富营养化问题提供参考。To protect the water environment of the Three Gorges Reservoir （TGR）, it is very inportant to predict the change trend of eutrophication of the TGR. This paper mainly introduces an eutrophication model system, which is developed by considering the integration actions, nutrient （ including P, N）, climate （ including temperature and light intensive） and hydrodynamics on the algal growth rate based on the feature of TGR. Takinge the Daning River, a branch largely effected from the storage of TGR, as a case, an empirical formula is presented firstly to describe the effect of hydrodynamics on the algal growth rate in the Daning River. The verification of the formula is conducted with the measurement data from the Darling River. It shows that the formula can simulate better the general feature of the algal growing and decaying in the Daning River after the storages water in TGR.

关 键 词：三峡库区 富营养化 模型开发 长江 

分 类 号：X524[环境科学与工程—环境工程]