摘要
大亚湾位于珠江口东侧,面积约600km^2,是一个山地溺谷型港湾,自然生物丰富。1982—1986年,我们对大亚湾的水化环境进行了多航次的综合调查(调查站位见图1)。著名的大亚湾核电站选址大亚湾的西侧,目前已经开始动工。本文着重讨论核电站热水排放对这一自然生态环境特征的影响。
In recent years, the investigative data for essential factors of water chemistry in the Daya Bay show that one of the natural eco-environmental characteristics is that water is seasonally devided into layers, and there appears lack of dissolved oxygen in bottom layer during April-October. When hot water from the Nuclear Power Station is discharged to the Daya Bay, temperature of the surface layer water will increase and the phenomenon will he more obvious. Accerding to calculation, if water temperature increases 1-2℃, the affected area will widen 3-5 km2, duration of the layer devided will delay 33-67 days, and consumptive rate of dissolved oxygen will increase 14-25%. Finally the authors suggest that if the Power Station draw cooling water from the bottom layer, the primary productivity would increase 2-116% and consumptive rate of dissolved oxygen will decrease 7.7-14%.
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1989年第1期7-12,共6页
Environmental Science
基金
国家自然科学基金
