References

  1. B. Liu, L.Y. Jiang, The importance of water resources protection based on the status quo of water resources, Sci. Technol. Guidelines, 27 (2019) 135.
  2. K.P. Singh, A. Malik, S. Sinha, Water quality assessment and apportionment of pollution sources of Gomti river (India) using multivariate statistical techniques-a case study, Anal. Chim. Acta, 538 (2005) 355–374.
  3. R.P. Kannel, S. Lee, S.R. Kanel, S.P. Khan, Chemometric application in classification and assessment of monitoring locations of an urban river system, Anal. Chim. Acta, 582 (2007) 390–399.
  4. Y. Ouyang, P. Nkedi-Kizza, Q.T. Wu, D. Shinde, C.H. Huang, Assessment of seasonal variations in surface water quality, Water Res., 40 (2006) 3800–3810.
  5. F. Zhou, G.H. Huang, H. Guo, W. Zhang, Z. Hao, Spatiotemporal patterns and source apportionment of coastal water pollution in eastern Hong Kong, Water Res., 41 (2007) 3429–3439.
  6. J. Wang, L. Da, K. Song, B.L. Li, Temporal variations of surface water quality in urban, suburban and rural areas during rapid urbanization in Shanghai, China, Environ. Pollut., 152 (2008) 387–393.
  7. T.M. Qian, Multivariate statistical analysis of water quality in main and tributary stream of Qiantangjiang River in Hangzhou, Environ. Monit. China, 31 (2015) 74–77.
  8. C. Solidoro, R. Pastres, G. Cossarini, S. Ciavatta, Seasonal and spatial variability of water quality parameters in the lagoon of Venice, J. Mar. Syst., 51 (2004) 7–18.
  9. H.M. Bu, X.A. Tan, S.Y. Li, Q.F. Zhang, Temporal and spatial variations of water quality in the Jinshui River of the South Qinling Mts. China, Ecotoxicol. Environ. Saf., 73 (2010) 907–913.
  10. D.A. Wunderlin, M.P. Diaz, M.V. Ame, S.F. Pesce, A.C. Hued, M.A. Bistoni, Pattern recognition techniques for the evaluation of spatial and temporal variations in water quality. A case study: Suquia river basin (Cordoba, Argentina), Water Res., 35 (2001) 2881–2894.
  11. V.G. Caccia, J.N. Boyer, Spatial patterning of water quality in Biscayne Bay, Florida as a function of land use and water management, Mar. Pollut. Bull., 50 (2005) 1416–1429.
  12. S. Shrestha, F. Kazama, Assessment of surface water quality using multivariate statistical techniques: a case study of the Fuji river basin, Japan, Environ. Modell. Software, 22 (2007) 464–475.
  13. Y.H. Chen, Yalong River Hydropower Development and Sustainable Utilization, Ertan Hydropower Development Co., Ltd., 2004, pp. 1624–1633.
  14. H. Pan, Z. Jian, Panzhihua City Surface Water Quality Monitoring Monthly Report, Panzhihua City Environmental Monitoring Station, 2018.
  15. M. Yang, Evaluation and analysis of coordinated development of ecological environment and economy in Sichuan Province, Sichuan Environ., 37 (2018) 153–161.
  16. Q. Zeng, L. Chen, Analysis of runoff changes in the Yalong River Basin, Shanxi Archit., 44 (2018) 199–201.
  17. X.Z. Xu, J.Z. Liu, An Analysis of the Environmental Development of the Yalong River Basin in the Next Decade, Yangtze River Water Resources Protection Research Institute, 2018.
  18. Y. Kang, Post-evaluation of Social and Environmental Impacts of Hydropower Development in the Middle and Lower Reaches of the Yalong River in Sichuan Province, Southwest Jiaotong University, 2017.
  19. J. Han, Z.Z. Shen, S.L. Shi, P.H. Peng, Comparison of vegetation species diversity in the dry valleys of the Yalong River and the Dadu River: impacts of climate, terrain and space, Biodiversity, 24 (2016) 421–430.
  20. Y.Q. Zhang, B. Jiang, Y.J. Li, X.M. Yin, F.F. Hui, Analysis of climatic characteristics of short-term heavy precipitation in Panzhihua. Meteorological bureau of Panzhihua City, Sichuan Province, 33 (2013) 36–40.
  21. Y. Chen, W.S. Wang, C.H. Tao, F. Zhao, Analysis of the impact of climate change on runoff in the Yalong River basin, People Yangtze River, 43 (2012) 24–29.
  22. Y.J. Ye, G.X. Xiang, L.Z. Wang, Climate and governance development of Panzhihua, Panzhihua Sci. Technol., 2 (2001) 23–29.
  23. G. Papatheodorou, G. Demopoulou, N. Lambrakis, A long-term study of temporal hydrochemical data in a shallow lake using multivariate statistical techniques, Ecol. Modell., 193 (2006) 759–776.
  24. N. Cliff, Analyzing multivariate data, Technometrics, 46 (2003) 254–255.
  25. R. Johnson, Applied multivariate statistical analysis, Technometrics, 25 (1982) 385–386.
  26. GB3838-2002, Regional Water Environmental Quality Standards of the People’s Republic of China, China, 2002.
  27. K.P. Singh, A. Malik, V.K. Singh, D. Mohan, S. Sinha, Chemometric analysis of groundwater quality data of alluvial aquifer of Gangetic plain, North India, Anal. Chim. Acta, 550 (2005) 82–91.
  28. D.Q. Liu, H.B. Han, Nonparametric Test of Water Quality Change Trend, Lanzhou University of Finance and Economics, 2015.
  29. C.E. Brown, Applied Multivariate Statistics in Geohydrology and Related Sciences, Springer Science & Business Media, Berlin, Heidelberg, 2012.
  30. F. Zhou, Z.J. Hao, H.C. Guo, Temporal and spatial distribution patters of marine water quality in Eastern Hong Kong, Acta Sci. Circumstantiae, 27 (2007) 1517–1524.
  31. H.M. Zou, L.F. Jiang, F.R. Li, Water quality and cluster analysis of Huaihe River Basin in 2004, Water Resour. Prot., 23 (2007) 60–62.
  32. Y.X. Yao, Water Environment Monitoring, Chemical Industry Press, China, 2015.
  33. L.P. Meng, Based on cluster analysis and discriminant analysis method, Environ. Dev., 2 (2012) 193–194.
  34. F. Zhou, H. Guo, L. Liu, Quantitative identification and source apportionment of anthropogenic heavy metals in marine sediment of Hong Kong, Environ. Geol., 53 (2007) 295–305.
  35. K. Xiao, J. Yang, Y. Li, Q. Quan, Temporal and spatial variations in water quality of Changjiang River Basin in Luzhou, China based on multivariate statistical techniques, Desal. Water Treat., 145 (2019) 151–159.
  36. D.H. Yan, W. Deng, Y. He, Characteristics of pH change in Tumen River natural water body and analysis of its causes, Agric. Environ. Prot., 20 (2001) 4–6.
  37. Z.B. Feng, Research on pH Characteristics and Change Mechanism of Main Lakes in Dianchi Lake, Yunnan Normal University, Kunming, 2018.
  38. L.L. Lü, Z.X. Li, C.Y. Cui, Study on the change law of dissolved oxygen in plateau rivers, Environ. Sci. Technol., 41 (2003) 133–140.
  39. H.D. Liu, Numerical Simulation of Dissolved Oxygen in Heavily Polluted Rivers in Mountainous Cities, Chongqing University, 2014.
  40. H.F. Yang, L. Wang, J.L. Guan, J.M. Duan, Evaluation of water quality in the western Xianxian section of the Weihe River based on multivariate statistical analysis, Chin. J. Environ. Eng., 10 (2016) 1560–1565.
  41. J.X. Wang, L. Li, M.M. Chen, X. Feng, C.H. Qin, G.G. Tang, L.X. Jing, Study on the emission of total nitrogen and total phosphorus from key pollution sources in China, Environ. Pollut. Control, 10 (2015) 99–110.
  42. Z.G. Yan, W. Meng, Z.G. Liu, R.Z. Yu, Study on the baseline of ammonia nitrogen in freshwater organisms in China, Environ. Sci., 32 (2011) 1564–1570.