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Spatio-Temporal Distribution Patterns in Environmental Factors, Chlorophyll-a and Microcystins in a Large Shallow Lake, Lake Taihu, China
Ye, Rui1; Shan, Kun2,3; Gao, Hailong1; Zhang, Ruibin1; Xiong, Wen1; Wang, Yulei1; Qian, Xin1
2014-05-01
Source PublicationINTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN1660-4601
Volume11Issue:5Pages:5155-5169
AbstractThe 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.
SubtypeArticle
KeywordEutrophication Lake Taihu Stratification Spatial-temporal Distribution Microcystin-lr Microcystin-rr
DOI10.3390/ijerph110505155
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS KeywordPHOSPHATASE INHIBITION ASSAY ; EUTROPHIC LAKE ; SEASONAL-VARIATION ; NATURAL BLOOMS ; MEILIANG BAY ; CYANOBACTERIA ; PHOSPHORUS ; SUCCESSION ; NUTRIENTS ; GROWTH
WOS IDWOS:000337251900037
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/20407
Collection藻类生物学及应用研究中心
Affiliation1.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
GB/T 7714
Ye, Rui,Shan, Kun,Gao, Hailong,et al. Spatio-Temporal Distribution Patterns in Environmental Factors, Chlorophyll-a and Microcystins in a Large Shallow Lake, Lake Taihu, China[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2014,11(5):5155-5169.
APA Ye, Rui.,Shan, Kun.,Gao, Hailong.,Zhang, Ruibin.,Xiong, Wen.,...&Qian, Xin.(2014).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,11(5),5155-5169.
MLA Ye, Rui,et al."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 11.5(2014):5155-5169.
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