| 黄华龙.石塘湖溶解氧分布特征及相关因素分析[J].安徽建筑大学学报,2015,23(4):42-46 |
| 石塘湖溶解氧分布特征及相关因素分析 |
| Distribution Characteristics and Analysis of Related Factors of Dissolved Oxygen in Shitang Lake |
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| DOI：10.11921/j.issn.2095-8382.20150409 |
| 中文关键词: 石塘湖 溶解氧 分布特征 相关因素 |
| 英文关键词: Shitang Lake, Dissolved Oxygen, Distribution characteristics, Related factors |
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| 中文摘要: |
| 通过对2014年安庆石塘湖溶解氧DO数据分析，探讨该湖DO的水平和垂直分布特征，以及DO与水温、电导率、高锰酸盐指数的相关性，进一步引申出目前城市浅水湖泊存在的富营养化问题。结果表明:石塘湖表层DO值≥5 mg/L，水质呈优良状态。水平分布特征是深水区点位DO值高于浅水区值，垂直分布特征为水温较低时，表层、中间层和底层DO值差别不大，但在水温较高时，差别较大。7、8月一些深水区点位出现底层厌氧、叶绿素a升高的情况,表层CODmn≥8 mg/L,水质呈富营养化状态。DO与T、电导率、CODmn相关性均呈显著性意义，其中DO与T相关性最好，为非常有显著意义 |
| 英文摘要: |
| The eutrophication problem of shallow lakes in the city was further extended, by analysis of Dissolved Oxygen (DO) data of Anqing Shitang Lake in 2014, investigating the horizontal and vertical distribution characteristics of DO, and the correlation between DO and temperature, conductivity, permanganate index(CODMn). The results showed that DO concentration in Shitang Lake surface was greater than or equal to 5 mg/L, water quality was excellent. Horizontal distribution characteristic of DO was that DO concentration in deep water was greater than that in shallow water. Vertical distribution characteristic of DO was that there was little difference of DO concentration in surface layer, middle layer and bottom layer at lower water temperature. DO concentration had great difference at higher water temperature. Anaerobic condition appeared at bottom in deep water during July and August, and the data of Chlorophyll a went up. The water quality was in eutrophic state when CODMn concentration greater than or equal to 8 mg/L in surface water. The correlation between DO and temperature, conductivity, CODMn was significant, among them, the correlation between DO and temperature was the best, which was very significant. |
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