Correlation Analysis of Water Quality Between Lake Inflow and Outflow: A Case Study of Poyang Lake

被引：4
|
作者：
Huang D.-L. [1 ,2 ]
Ni Z.-K. [2 ]
Zhao S. [2 ]
Zhang B.-T. [2 ]
Feng M.-L. [3 ]
Chen H.-W. [3 ]
Li X.-X. [1 ]
Wang S.-R. [2 ,4 ]
机构：
[1] College of Resource Environment and Tourism, Capital Normal University, Beijing
[2] Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing
[3] Jiangxi Academy of Environmental Science, Nanchang
[4] College of Hydraulic & Environmental Engineering, Three Gorges University, Yichang
来源：
Huanjing Kexue/Environmental Science | 2019年 / 40卷 / 10期
关键词：
Correlation; Evolution; Inflow/outflow river; Influencing factors; Poyang Lake;
D O I：
10.13227/j.hjkx.201902103
中图分类号：
学科分类号：
摘要：
The relationships between inflow and outflow water quality data for Poyang Lake from 1996 to 2016 are discussed and the main influencing factors are identified. TN and TP were the main factors causing a decline in water quality in Poyang Lake during the study period. The water quality of both the inflow and outflow rivers was generally good between 1996 and 2003; however, water quality declined over the study period, which is attributed to an increase in nutrients loads in the watershed. From 2004 to 2011, the water quality of the "Five Rivers" decreased significantly, which caused the water quality of Poyang Lake to decline. Due to the high purification capacity of Poyang Lake, the water quality of the outflow during this period was relatively good. A decline in water quality after this point was affected by pollution loads and hydrological conditions. Specifically, from 2012 to 2016, water quality in Poyang Lake and of the inflow water declined further. This was combined with a decrease in the water-purification capacity of the lake due to changes in the hydrological conditions, resulting in lower water quality at the outflow. Overall, the water quality of the inflow river has been closely related to the water quality in Poyang Lake. The concentrations of TN were significantly higher in the southern and eastern areas of Poyang Lake compared to the western areas. Higher nutrient loading from the Ganjiang River and the Xinjiang River has been an important driver. The concentrations of TP in the southern area of the lake have been significantly higher than in the eastern and western areas. This is attributed to comparatively high TP loads in the Ganjiang River and the Fuhe River. Compared to the changes in hydrological conditions, variations in nutrient loading have had a greater effect on water quality in the lake. © 2019, Science Press. All right reserved.
引用
收藏
页码：4450 / 4460
页数：10
相关论文
共 40 条
  • [11] Howarth R., Swaney D., Billen G., Et al., Nitrogen fluxes from the landscape are controlled by net anthropogenic nitrogen inputs and by climate, Frontiers in Ecology and the Environment, 10, 1, pp. 37-43, (2012)
  • [12] Hong B., Swaney D.P., Et al., Evaluating regional variation of net anthropogenic nitrogen and phosphorus inputs (NANI/NAPI), major drivers, nutrient retention pattern and management implications in the multinational areas of Baltic Sea basin, Ecological Modelling, 227, pp. 117-135, (2012)
  • [13] Duan W.L., He B., Nover D., Et al., Water quality assessment and pollution source identification of the eastern Poyang Lake Basin using multivariate statistical methods, Sustainability, 8, 2, (2016)
  • [14] Wu Z.S., Cai Y.J., Liu X., Et al., Temporal and spatial variability of phytoplankton in Lake Poyang: the largest freshwater lake in China, Journal of Great Lakes Research, 39, 3, pp. 476-483, (2013)
  • [15] Dudagula, He J., Lu C.W., Et al., Distribution of heavy metals in water-sediment system of Hulun Lake, China, Journal of Agro-Environment Science, 34, 1, pp. 118-223, (2015)
  • [16] Shen H.Y., Zhang M.M., Ni Z.K., Et al., Distribution of transferable nitrogen in Poyang Lake sediments and its response to the variation of river-lake relationship, Environmental Science, 36, 1, pp. 87-93, (2015)
  • [17] Li B., Yang G.S., Wan R.R., Et al., Hydrodynamic and water quality modeling of a large floodplain lake (Poyang Lake) in China, Environmental Science and Pollution Research, 25, 35, pp. 35084-35098, (2018)
  • [18] Zhang Z.X., Chen X., Xu C.Y., Et al., Examining the influence of river-lake interaction on the drought and water resources in the Poyang Lake basin, Journal of Hydrology, 522, pp. 510-521, (2015)
  • [19] Liu X., Xue Y., Ji Y.P., Et al., An assessment of water quality in the Yellow River estuary and its adjacent waters based on principal component analysis, China Environmental Science, 35, 10, pp. 3187-3192, (2015)
  • [20] Shrestha S., Kazama F., Assessment of surface water quality using multivariate statistical techniques: a case study of the Fuji river basin, Japan, Environmental Modelling & Software, 22, 4, pp. 464-475, (2007)
1234