摘要
In this paper, an improved simulation method was developed to investigate the mechanisms of algal growth in Poyang Lake, which is the largest freshwater lake and the most typical river-connected lake in China. In view of its frequent water and sediment exchange with the external rivers, the influences of flow disturbance and suspended sediment concentration on algal growth were quantitatively analyzed based on field investigation and laboratory experiment, and the controlling equations of l(u) and g(S) were established and embedded into the traditional algal growth model for more accurate simulation in Poyang Lake. The improved model was calibrated and validated against the consecutive field monitoring data from March to November in 2012. By simulation, the algal concentration fluctuation in a common-water year and the spatial distribution under two typical current structures: “Gravity Style” and “Jacking Style,” were quantitatively estimated. The results showed that the improved model gave a good approximation of the algal growth processes under the varied water–sediment environment in Poyang Lake. Algal concentrations in the middle area were evidently higher than that in the south and north lake area, while the variation trends were basically the same. Due to the slower current, the algal concentration under “Jacking Style” flow structure was averagely increased by 18.8 % than that under the “Gravity Style.” Keywords Poyang Lake Algal growth Model Current Suspended sediment Page %P Close Plain text Look Inside Reference tools Export citation EndNote (.ENW) JabRef (.BIB) Mendeley (.BIB) Papers (.RIS) Zotero (.RIS) BibTeX (.BIB) Add to Papers Other actions Register for Journal Updates About This Journal Reprints and Permissions Share Share this content on Facebook Share this content on Twitter Share this content on LinkedIn Related Content Supplementary Material (0) References (26) ReferencesChen J (2009) Discussion on protection and utilization of the Yangtze River and river-connecting lakes. Yangtze River Scientific Research Institute Dalian Liaoning China TV213.4Ding W, Chuai XM, Qian X, Hu ZX, Chu ZS, Yang LY (2011) Study of impact factor of forecasting algal bloom in Yanghe reservoir. 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J Hydrodyn 19(1):99–102 About this Article Title Algal growth simulation in fluctuating water–sediment circumstances of the largest river-connected lake in China Journal Environmental Earth Sciences 75:66 Online DateDecember 2015 DOI 10.1007/s12665-015-4802-z Print ISSN 1866-6280 Online ISSN 1866-6299 Publisher Springer Berlin Heidelberg Additional Links Register for Journal Updates Editorial Board About This Journal Manuscript Submission Topics Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences Keywords Poyang Lake Algal growth Model Current Suspended sediment Industry Sectors Materials & Steel Electronics IT & Software Telecommunications Energy, Utilities & Environment Oil, Gas & Geosciences Authors Hua Wang (1) (2) Zhizhang Zhang (1) (2) Yanqing Deng (3) Shigang Wang (4) Chao He (5) Author Affiliations 1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China 2. College of Environment, Hohai University, Nanjing, 210098, China 3. Hydrology Bureau of Jiangxi Province, Nanchang, 330002, China 4. Hydrology Bureau of Poyang Lake, Jiujiang, 332800, China 5. Division of Environmental and Water Resources, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore Continue reading... To view the rest of this content please follow the download PDF link above.