Spatial and temporal variation characteristics of water quality in Tanjiang River and its driving factors

被引：0
|
作者：
Su C. [1 ,2 ]
Chen X. [3 ]
Tan Y. [2 ]
Ouyang W. [2 ]
机构：
[1] The National Demonstration Center for Postdoctoral Innovation(Jiangmen), Jiangmen
[2] Jiangmen Bureau of Ecological Environment, Jiangmen
[3] Center for Water Resources and Environment, Sun Yat-sen University, Guangzhou
来源：
Water Resources Protection | 2021年 / 37卷 / 04期
关键词：
Comprehensive pollution index; Driving factors; Principal component analysis; Spatial and temporal variation; Tanjiang River; Trend test; Water quality parameters;
D O I：
10.3880/j.issn.1004-6933.2021.04.016
中图分类号：
学科分类号：
摘要：
To master the variation characteristics of water quality in Tanjiang River(TJR), the Mann-Kendall test and water quality comprehensive pollution index were adopted to analyze the interannual variation characteristics of water quality in TJR from 2001 to 2019. The principal component analysis method was employed to identify the dominant water quality parameters influencing the water quality variation in TJR. The main driving factors influencing the water quality change were analyzed by correlation model. The results show that the water quality in the upper reaches of TJR was the best but it had a certain tendency of deterioration. The water quality in the lower reaches in TJR took second place and the tendency of deterioration was not obvious. The water quality in the middle reaches in TJR was the worst and the tendency of deterioration was the most significant. The water quality parameters dominating the water quality variation were COD and BOD5 in the upper reaches and TN and NH3−N in the middle reaches as well as TN, NH3−N and TP in the lower reaches of TJR. Population and forest coverage rate were the main driving factors influencing the water quality variation in the upper reaches of TJR, while GDP and water temperature were also the driving factors influencing the water quality variation in the middle and lower reaches of TJR besides population and forest coverage rate. Additionally, the relationship between the water quality change and natural driving factors were changed due to the impact of human factors. © 2021, Editorial Board of Water Resources Protection. All rights reserved.
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页码：109 / 116
页数：7
相关论文
共 30 条
  • [1] NOVOTNY V., Water quality: Diffuse pollution and watershed management, (2002)
  • [2] YU Songyan, XU Zongxue, WU Wei, Et al., Spatial variation of water quality and its response to landuse in the Beiluo River Basin, Acta Scientiae Circumstantiae, 34, 5, pp. 1309-1315, (2014)
  • [3] ZIELIN'SKI M, DOPIERALSKA J, BELKA Z, Et al., Sr isotope tracing of multiple water sources in a complex river system, Notec' River, central Poland, Science of the Total Environment, 548, 549, pp. 307-316, (2016)
  • [4] ROEBELING P C, CUNHA M C, ARROJA L, Et al., Abatement vs. treatment for efficient diffuse source water pollution management in terrestrial-marine systems, Water Science & Technology, 72, 5, pp. 730-737, (2015)
  • [5] CHEN Q, MEI K, DAHLGREN R A, Et al., Impacts of land use and population density on seasonal surface water quality using a modified geographically weighted regression, Science of the Total Environment, 572, pp. 450-466, (2016)
  • [6] CHEN D, HU M, GUO Y, Et al., Modeling forest/agricultural and residential nitrogen budgets and riverine export dynamics in catchments with contrasting anthropogenic impacts in eastern China between 1980-2010, Agriculture Ecosystems & Environment, 221, pp. 145-155, (2016)
  • [7] VANE C H, BERIRO D J, TURNER G H., Rise and fall of mercury(Hg)pollution in sediment cores of the Thames Estuary, London, UK, Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 105, pp. 285-296, (2015)
  • [8] FULAZZAKY M A., Water quality evaluation system to assess the status and the suitability of the Citarum River water to different uses, Environmental Monitoring and Assessment, 168, 1, pp. 669-684, (2010)
  • [9] KANNAN K, SINHA R K, TANABE S, Et al., Heavy metals and organochlorine residues in Ganges River dolphins from India, Marine Pollution Bulletin, 26, 3, pp. 159-162, (1993)
  • [10] ZHANG Longjun, XIA Bin, GUI Zusheng, Et al., Contaminative conditions evaluation of sixteen main rivers flowing into sea around Bohai Sea, in Summer of 2005, Environmental Science, 28, 11, pp. 2409-2415, (2007)
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