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中文摘要：
研究了废料转炉钢渣对海洋微藻——赤潮异弯藻生长的影响，探讨其作为“铁肥”材料的可行性．以海水为培养液，考察了不同浓度的转炉钢渣浸出物对赤潮异弯藻生长的影响．结果表明，随着钢渣浓度的增加，对赤潮异弯藻的生长呈现先促进后抑制的趋势．这种作用在无营养盐限制，不添加任何微量元素的大洋水中要比在相同条件的近岸海水中表现得更加明显．当大洋水中钢渣浓度约为248mg／L，近岸海水中约为62mg／L时，微藻生物量相对于空白对照组均有显著提高．
英文摘要：
The effect of waste steelmaking slag, supplied by Iron and Steel Enterprise, on the growth of Heterosigma akashiwo-a typic species of red-tide forming marine microalgae was studied and the feasibility of waste steelmaking slag as ＂iron fertilization＂ was discussed. Heterosigma akashiwo was stimulated under the lower concentration of steelmaking slag while inhibited under the higher concentration. The growth ofHeterosigma akashiwo, which stimulated by steelmaking slag, was more significant in ocean water with the addition of nutrients （no trace elements） than in coastal water under the same condition. Microalgae biomass was significantly increased compared to the control group when the steelmaking slag concentration was about 248mg/L in ocean water and 62mg/L in coastal water.
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