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| 玄武湖蓝藻水华成因探讨 |
| Study on the ReasonsofBlue Algain Xuanwu Lake ofNanjing |
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| DOI： |
| 中文关键词: 蓝藻 水华 富营养 玄武湖 |
| 英文关键词: Blue alga W aterpollution Over-enrichmen t Xuanwu LakeofNanjing |
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| 中文摘要: |
| 为了解南京玄武湖蓝藻水华的成因, 对玄武湖长期监测资料进行了分析和现场调查。结果表明 , 玄武湖鲢鳙急剧减少中断了正常的食物链, 使浮游植物的牧食压力降低, 在东南湖回水的诱因作用下 , 发生了以微囊藻为优势种群的蓝藻水华。 指出, 玄武湖蓝藻水华的发生进程表明, 东南湖回水可能是蓝藻水华发生的诱因, 生态失衡是蓝藻水华发生的主要原因, 蓝藻水华的暴发与富营养化程度无显著相关性, 其暴发加重了玄武湖富营养化程度。 |
| 英文摘要: |
| In orderto find outthe reasonsofblue algain Xuanwu Lake, thisarticle had investigated the long - term monitoringinformation ofXuanwu Lake and the results had shown thatthe mostimportantreason is sharp declineoftwo kindsoffishes, sothatthenormalfood chain wasinterrupted andtheamountofphytoplank tonwasincreasedin shorttime withthereason ofcircle waterin itsEast 2 South par.t Theeruption courseofblue alga hadshown thatitsinducementwasbecauseofcircle waterin its East-South par,t and its main reason was entironmentunbalance. In addition, thereisnorelativity between thepollution ofbluealgaandthe degreeofo ver -enrichmen,t and the eruption ofblue algawillaggravatethelevelofover enrichmentofXuanwu Lake. |
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