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浙江大学学报(工学版)
能源与环境工程     
四岭水库蓝绿藻细胞浓度的多时间尺度分析
何俊昱1,2,肖溪1,2,黄皓旻1,施积炎1,徐新华3
1.浙江大学 环境保护研究所,浙江 杭州 310058;2. 浙江大学 海洋学院,浙江 舟山 316021; 3.浙江大学 环境工程研究所,浙江 杭州 310058
Multiple time scales analysis of blue green algal cell density in Siling Reservoir
HE Jun yu1,2, XIAO Xi1,2, HUANG Hao min1, SHI Ji yan1, XU Xin hua3
1.Institute of Environmental Science and Technology, Zhejiang University, Hangzhou 310058, China;2.Ocean College, Zhejiang University, Zhoushan 316021, China; 3.Institute of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
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摘要:

为揭示杭州市四岭水库蓝藻暴发的内在规律、特征并预测未来趋势,以水库2011年11月14日至2012年8月30日水质监测数据为研究对象,采用多元线性回归方法分析影响蓝绿藻细胞密度的因素,引入小波理论对时间序列数据集进行数据补偿、去噪和多时间尺度分析.结果表明,四岭水库蓝绿藻细胞密度变化受自身影响较其余环境因素大,且具有多时间尺度特征;蓝绿藻细胞密度变化在46 d、128 d时间尺度下分别存在主周期,其周期分别为30 d和85 d;预测未来15 d内四岭水库蓝绿藻细胞密度呈现低水平;验证了小波理论能精细分析蓝绿藻细胞密度(日际变化数据集)的特征,为四岭水库的日常管理和藻华防治提供科学依据.

Abstract:

The water quality on line monitoring data was collected from Nov.14, 2011 to Aug. 30, 2012 to reveal the inherent laws, characteristics and to predict the variation trend of algae bloom in Siling Reservoir. Firstly, the multiple linear regression method was used to analyze the main factor that affect the cell density of blue green algae. Subsequently, the wavelet analysis was applied for the pretreatment, de noising and data mining of the dense time serial dataset. Results indicate that, compared to other environmental factors, the cell density of blue green algae is mainly affected by itself. Multiple time scale characteristics exist in the time serial cell density dataset of blue green algae. Two main periods of the cell density dynamics are 30 d and 85 d at the time scales of 46 d and 128 d, respectively. The cell density of blue green algae will probably maintain a low range in the following 15 d. Wavelet theory is verified to be successfully used in analyzing the characteristics of blue green algae density in Siling Reservoir, which can provide scientific evidence to the daily management and algae bloom prevention of Siling Reservoir.

出版日期: 2016-09-18
:  X 524  
基金资助:

国家自然科学基金资助项目(21307106);中国博士后科学基金资助项目(2012M521181);浙江省公益性技术应用研究计划资助项目(2013C33003);齐家国教授千人计划经费.

通讯作者: 肖溪,女,副教授,博士. ORCID:0000 0002 9753 6586.      E-mail: prana@zju.edu.cn
作者简介: 何俊昱(1991-),男,博士生,从事空间数据分析、环境系统模拟与分析、环境污染风险评估与修复研究. ORCID:0000 0003 1873 3125. E-mail:jxgzhejunyu@163.com
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引用本文:

何俊昱,肖溪,黄皓旻,施积炎,徐新华. 四岭水库蓝绿藻细胞浓度的多时间尺度分析[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.03.013.

HE Jun yu, XIAO Xi, HUANG Hao min, SHI Ji yan, XU Xin hua. Multiple time scales analysis of blue green algal cell density in Siling Reservoir. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.03.013.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.03.013        http://www.zjujournals.com/eng/CN/Y2016/V50/I3/491

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