Spatio-temporal variation in phytoplankton community and its influencing factors in Danjiangkou Reservoir

被引：12

作者：

Wang Y. ^{[1
,2
]}

Chen L. ^{[1
]}

Niu Y. ^{[2
]}

Yu H. ^{[2
]}

Luo M. ^{[2
]}

机构：

[1] School of Municipal & Environmental Engineering, Jilin Jianzhu University, Changchun

[2] State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing

来源：

Hupo Kexue/Journal of Lake Sciences | 2016年 / 28卷 / 05期

关键词：

Danjiangkou Reservoir; Phytoplankton; Spatio-temporal variation;

D O I：

10.18307/2016.0516

中图分类号：

学科分类号：

摘要：

In order to explore the spatiotemporal variations in phytoplankton community and its influencing factors in Danjiangkou Reservoir, we conducted a one-year survey from May 2014 to April 2015. Sixty-six species, including 38 genera, 21 families and 7 phyla, were identified in the survey. The average biomass of phytoplankton is 0.35 mg/L, while the average density is 9.08×105 cells/L. Dominant species are Fragilaria spp., Cyclotella spp., Melosira spp., and Scenedesmus spp.. Fragilaria spp. is the most dominant specie, and its average biomass is 0.089 mg/L, making up 25.43% of total biomass. In recent years, high level of nutrient may be the main cause of increasement in Fragilaria biomass in Danjiangkou Reservoir. Chlorophyta and cyanobacteria bloomed in summer, while diatom dominated in spring, autumn and winter. Total phytoplankton biomass in Han Reservoir is greater than that of Dan Reservoir. There were significant differences in phytoplankton composition between these two reservoirs. The dominant phylum of Dan Reservoir is Bacillariophyta, while the dominant phylum of Han Reservoir is Chlorophyta. There was significant correlation of the phytoplankton biomass with phosphorus, pH and dissolved oxygen, respectively. RDA analysis showed that the major environmental factors affecting phytoplankton community were dissolved oxygen, pH, phosphorus and temperature. For preventing the algae blooms, strict measures should be taken to control the input of exogenous nutrient especially phosphorus. This study provides scientific basis for water quality improvement and control of eutrophication at Danjiangkou Reservoir. © 2016 by Journal of Lake Sciences.

引用

页码：1057 / 1065

页数：8

共 35 条

[1]

Zhao W., Aquacultural Ecology and Health Culuture Theory of Sea Cucumber (Aportichopus juponicus Selenka) in Ponds, (2009)

[2]

Huang L., Zhang S., Wang H., Et al., Ecological Environment and Biological Resources in Sanya Bay, (2007)

[3]

Fang T., Li D., Yu L., Et al., Effect of irradiance and phosphate on growth of nanophytoplankton and picophytoplankton, Acta Ecologica Sinica, 26, 9, pp. 2783-2790, (2006)

[4]

Shen P.P., Shi Q., Hua Z.C., Et al., Analysis of microcystins in cyanobacteria blooms and surface water samples from Meiliang Bay, Taihu Lake, China, Environment International, 29, 5, pp. 641-647, (2003)

[5]

Schindler D., Evolution of phosphorus limitation in lakes, Science, 195, 4275, pp. 260-262, (1977)

[6]

Zhang X., Xie P., Chen F.Z., Et al., Present status and changes of the phytoplankton community after invasion of Neosalanx taihuensis since 1982 in a deep oligotrophic plateau lake, Lake Fuxian in the subtropical China, Journal of Environmental Sciences, 17, 3, pp. 389-394, (2005)

[7]

Reynolds C.S., The ecology of planktonic blue-green algae in the NorthShrop shire Meres, Field Studies, 3, 2, pp. 409-431, (1971)

[8]

Straskraba M., Tundisi J.G., Duncan A., State of the Art of Reservoir Limnology and Water Quality Management, pp. 213-288, (1993)

[9]

Wu H., Peng J., Han D., Composition and ecological chances of phytoplankton in Dan Jiang Kou Reservoir, J Lake Sci, 8, 1, pp. 43-50, (1996)

[10]

Tan X., Xia X., Cheng X., Et al., Temporal and spatial pattern of phytoplankton community and its biodiversity indices in the Danjiangkou Reservoir, Environmental Science, 32, 10, pp. 2875-2882, (2011)

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