Spatio-temporal Evolution and Relationship of Water Environment Quality and Phytoplankton Community in Wenyu River

被引：3

作者：

Zhu L.-Y. ^{[1
,2
]}

Chen Y.-Y. ^{[2
,3
]}

Liu J. ^{[4
]}

Wang Y.-W. ^{[2
]}

Wang C.-R. ^{[1
]}

Wei Y.-S. ^{[2
,5
,6
]}

Zhang Y.-X. ^{[4
]}

机构：

[1] School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing

[2] . State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing

[3] School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou

[4] State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing

[5] Laboratory of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing

[6] University of Chinese Academy of Sciences, Beijing

来源：

Huanjing Kexue/Environmental Science | 2020年 / 41卷 / 02期

关键词：

Biodiversity indices; Phytoplankton; Spatio-temporal dynamic; Water environment quality; Wenyu River;

D O I：

10.13227/j.hjkx.201906207

中图分类号：

学科分类号：

摘要：

The Wenyu River is an important ecological corridor of Beijing. In this study, the spatio-temporal dynamics of water quality and phytoplankton community in the Wenyu River in 2006, 2011, and 2018, as well as their relationship were thoroughly analyzed by historical data analysis and field surveys. Results show that the water quality in the Wenyu River improved significantly from serious pollution owing to pollution containment. The major water pollutant has shifted from ammonia nitrogen (NH4 +-N) to total nitrogen (TN). Compared with 2011, the average multiple of NH4 +-N and total nitrogen TN exceeding the national standard were reduced by factors of 0.29-0.33 and 2.77-2.39, respectively, in 2018. The average concentration of NH4 +-N and TN decreased from 15.52-19.16 mg•L-1 and 20.21-19.58 mg•L-1 in 2011 to 1.93-2.66 mg•L-1 and 5.66-6.79 mg•L-1 in 2018. Moreover, dissolved oxygen (DO) and NH4 +-N concentrations in the Wenyu River and its tributaries, the Qinghe River, almost met requirements of their water function zoning target. Corresponding with the water quality improvement, the phytoplankton and community species increased dramatically. Phytoplankton species increased from 6 to 8 phyla, as well as community species. The dominant species changed from Chlorophyta in 2006 to the Cyanophyta in 2011, then to Bacillariophyta in 2018. The Shannon-Wiener diversity index (H') and evenness Pielou index (J) had improved. However, the major dominant species such as Cyclotella and Melosira persisted, and the Wenyu River was still in the eutrophication state in 2018. Statistical analysis results indicated that Cyanophyta, Bacillariophyta, and other algae abundance were significantly correlated with DO, pH, NH4 +-N, TN, and TP. © 2020, Science Press. All right reserved.

引用

页码：702 / 712

页数：10

共 34 条

[1] Yu D.W., Yu M., Wei Y.S., Et al., Spatio-temporal evolution of water environment quality in Wenyu River during 1980-2010, Acta Scientiae Circumstantiae, 32, 11, pp. 2803-2813, (2012)
[2] Jindal R., Thakur R.K., Singh U.B., Et al., Phytoplankton dynamics and water quality of Prashar Lake, Himachal Pradesh, India, Sustainability of Water Quality and Ecology, 3-4, pp. 101-113, (2014)
[3] Safonova T.A., Shaulo S.P., Phytoplankton of the Karasuk River (West Siberia) as an indicator of water quality, Contemporary Problems of Ecology, 2, 6, pp. 570-575, (2009)
[4] Vajravelu M., Martin Y., Ayyappan S., Et al., Seasonal influence of physico-chemical parameters on phytoplankton diversity, community structure and abundance at Parangipettai coastal waters, Bay of Bengal, South East Coast of India, Oceanologia, 60, 2, pp. 114-127, (2018)
[5] Wang G., Qi J., Pan T., Et al., Assessment of emission reduction measures of the main pollutants in the North Canal River (Beijing section), Environmental Pollution and Control, 38, 6, pp. 39-45, (2016)
[6] Liu M.Y., Hua L., Analysis on water environment capacity of Wenyu River, Journal of Capital Normal University (Natural Science Edition), 29, 3, (2008)
[7] Ji L.N., Sun F.G., Fu C.M., Et al., Comparative analysis of flooding process of "2012.7. 21" And"2016.7.20" Rain Storm in North Canal of Beijing, China Flood & Drought Management, 29, 2, (2019)
[8] Shi H.M., Mathematical model of flow and water quality in Wenyuhe basin, pp. 26-50, (2009)
[9] Wang Y.W., Du X.Q., Yu D.W., Et al., Assessment of ammonia nitrogen pollution control in Wenyu River by QUAL2K simulation, Acta Scientiae Circumstantiae, 33, 2, pp. 479-486, (2013)
[10] Sun W., Wang L.M., Liu J.B., Et al., Nutrients distribution and its sources analysis of sediments in Shahe reservoir of northern canal, Acta Scientiae Circumstantiae, 39, 5, pp. 1581-1589, (2019)

← 1 2 3 4 →