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题名: Spatio-Temporal Distribution Patterns in Environmental Factors, Chlorophyll-a and Microcystins in a Large Shallow Lake, Lake Taihu, China
作者: Ye, Rui1; Shan, Kun2, 3; Gao, Hailong1; Zhang, Ruibin1; Xiong, Wen1; Wang, Yulei1; Qian, Xin1
关键词: eutrophication ; Lake Taihu ; stratification ; spatial-temporal distribution ; microcystin-LR ; microcystin-RR
刊名: INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
发表日期: 2014-05-01
DOI: 10.3390/ijerph110505155
卷: 11, 期:5, 页:5155-5169
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The spatio-temporal distribution of environmental factors, chlorophyll-a (Chl-a), and microcystins (MCs) in a shallow lake, Lake Taihu (China), were investigated from 2009 to 2011 on a monthly basis at nine sampling stations. The annual mean concentration ranges of total nitrogen (TN), total phosphorus (TP), Chl-a, MC-LR and MC-RR were 0.17-10.53 mg/L, 0.027-0.581 mg/L, 0.10-129.75 mu g/L, 0.013-2.019 mu g/L and 0.002-0.794 mu g/L, respectively. The average TN, ammonium (NH4+) and TP concentrations in Meiliang Bay decreased from 3.54 to 2.26 mg/L, 0.63 to 0.31 mg/L and 0.150 to 0.124 mg/L, respectively, when compared with values from 2006-2008, indicating that water quality has improved in severe cyanobacterial bloom areas in recent years. Additionally, the distribution of MCs was northern lake areas > western lake areas > central lake areas > macrophyte-dominated areas. Correlation analysis revealed that nutrients were the most important variable accounting for the variation of extracellular MC-LR concentration in heavy cyanobacterial bloom areas of Lake Taihu. During the study period, the maximum MCs concentration reached 2.75 +/- 0.27 mu g/L in the bloom period in the northern lake areas, which is more than two times the safety limit of 1 mu g/L MCs required for drinking water. However, microcystins decreased gradually as the water quality improved from 2009 to 2011, indicating that the risk of MCs exposure was slightly decreased in Lake Taihu.
关键词[WOS]: PHOSPHATASE INHIBITION ASSAY ; EUTROPHIC LAKE ; SEASONAL-VARIATION ; NATURAL BLOOMS ; MEILIANG BAY ; CYANOBACTERIA ; PHOSPHORUS ; SUCCESSION ; NUTRIENTS ; GROWTH
语种: 英语
WOS记录号: WOS:000337251900037
ISSN号: 1660-4601
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20407
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Ye, Rui; Shan, Kun; Gao, Hailong; Zhang, Ruibin; Xiong, Wen; Wang, Yulei; Qian, Xin.Spatio-Temporal Distribution Patterns in Environmental Factors, Chlorophyll-a and Microcystins in a Large Shallow Lake, Lake Taihu, China,INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2014,():
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