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引用本文:刘元波,陈伟民,范成新,季江,高锡芸,陈宇炜.太湖梅梁湾藻类生态模拟与蓝藻水华治理对策分析.湖泊科学,1998,10(4):53-59. DOI:10.18307/1998.0408
Liu Yuan-bo,Chen Wei-min,Fan Cheng-xin,Ji Jiang,Gao Xi-yun,Chen Yu-wei.Ecological Simulation of Blue Algal Bloom in Meiliang Bay, Taihu Lake and Analysis of Its Harness Strategies. J. Lake Sci.1998,10(4):53-59. DOI:10.18307/1998.0408
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太湖梅梁湾藻类生态模拟与蓝藻水华治理对策分析
刘元波, 陈伟民, 范成新, 季江, 高锡芸, 陈宇炜
中国科学院南京地理与湖泊研究所, 南京 210008
摘要:
根据目前对太湖梅梁湖生态环境的认知,建立该湖区藻类生态动力学模型并进行生态模拟,基于模拟结果,对太湖富营养化中最严重的蓝藻水华治理与污染物排放控制和清淤工程进行了分析.结果显示:太湖污染物排放达标将极大改善富营养化水平;但应结合经济分析和效益分析,通过组合各类污染物控制总量来达到最优治理效果.模拟分析表明,单-清淤工程对于富营养化中蓝藻水华治理意义有限.根据最新调查资料,提出清淤工程实施的-些设想,并指出清淤中应注意合理保护水生生物.
关键词:  太湖  富营养化  生态模拟  治理对策
DOI:10.18307/1998.0408
分类号:
基金项目:中国科学院“八五”重点项目,Z091;国家自然科学基金,39500027;“九五”重点项目,KZ952-S1-220
Ecological Simulation of Blue Algal Bloom in Meiliang Bay, Taihu Lake and Analysis of Its Harness Strategies
Liu Yuan-bo, Chen Wei-min, Fan Cheng-xin, Ji Jiang, Gao Xi-yun, Chen Yu-wei
Nanjing Institute of Geography Limnology, Chinese Academy of Sciences, Nanjing 210008
Abstract:
A simple algal ecological model is established based on the current knowledge on the Meiliang Bay, Taihu Lake. Combining with the ecological simulation results and the field data,we analyze the harness ways of blue algal bloom concerning pollution control and dredging engineering.The simulation results show that, the reduction of the total nitrogen and the total phosphorus input will bring out greatly the decreasing of blue algal bloom and the reduction effect of the total phosphorus is greater than that of the total nitrogen. To reduce the bloom, the simulation result shows that it is not an effective way to reduce the sledge releasing rate. Once the water pollution control target is satisfied the level of water bloom will decrease to the very low level. However, to optimize the achievements, it is necessary to consider both the total amounts of nitrogen and phosphorus and their ratio by the use of economical and bcncficial analysis. From the simulation results and the updated investigation data of the sledge distribution in Taihu Lake, we conclude that it is very limited for algal harness to proceed the dredging engineering. Despite of this, some ways are put out to proceed the engineering while the aquatic bio-organism should be protected reasonably.
Key words:  Taihu Lake  eutrophication  ecological simulation  harness strategy
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