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2022, 01, v.37 65-74
2011—2020年太湖水质分析及综合评价研究
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摘要:

采用单项指标污染指数对2011—2020年太湖水体中的氨氮、总氮、总磷、高锰酸盐指数水质指标进行分析,应用属性识别模型进行综合评价及变化趋势分析,并对现有的太湖综合营养状态相关信息进行汇总和分析.结果表明:太湖水体中的氨氮、总氮控制成效显著,指标浓度自2011年以来基本呈下降趋势;高锰酸盐指数、总磷指标浓度呈波动反复态势,是当前太湖水质治理的重点,其中总磷呈波动上升趋势,是当前太湖水质治理的难点.太湖水体综合环境质量水平总体呈上升向好趋势,但是综合营养状态指数在一定范围内反复波动,蓝藻水华聚集现象有上升趋势,说明虽然太湖流域综合治理取得积极成效,但仍存在薄弱环节.

Abstract:

The water quality indexes of ammonia nitrogen, total nitrogen, total phosphorus and permanganate index in Taihu Lake from 2011 to 2020 were analyzed by using single index pollution index. The water quality of Taihu Lake was comprehensively evaluated by using attribute recognition model, and the variations were analyzed. The results showed that the control effect of ammonia nitrogen and total nitrogen was remarkable. The concentration of both had basically declined since2011. The permanganate index and total phosphorus concentration were fluctuating repeatedly, so were the key point of water quality control in Taihu Lake. The total phosphorus concentration was fluctuating and rising, so was the difficulty of water quality control in Taihu Lake. The comprehensive environmental quality level of Taihu Lake was on the rise, but the comprehensive nutritional status index fluctuated repeatedly within a certain range. The number of cyanobacterial blooms has an upward trend, indicating that although the comprehensive management of Taihu Lake Basin had achieved positive results, there were still weak links.

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中图分类号:X824

引用信息:

[1]胡起靖.2011—2020年太湖水质分析及综合评价研究[J].汕头大学学报(自然科学版),2022,37(01):65-74.

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