References
- Benny, B., M. Schwientek, and L. Gunnar. 2013. Understanding processes governing water quality in catchments using principal component scores. Journal of Hydrology, 486:31–38.
- Chan, H. J. 2001. Effect of land use and urbanization on hydrochemistry and contamination of groundwater from Taejon area. Korea. Journal of Hydrology, 253:194–210.
- Chandrasekara, C. M. K. N. K., K. D. N. Weerasinghe, P. U. K. Ranjana, and S. Pathirana. 2012. Spatial and temporal analyses of land use and land cover changes in Negombo lagoon-Muthurajawela marsh areas. In Proceedings of the international symposium on agriculture and environment , eds. W. M. M. P. Wijerathne, N. S. B. M. Atapattu, L. Nugaliyadde, N. W. De Silva, S. D. Wanniarachchi, C. Rupasinghe, K. L. Kumara Wasantha, D. Rathnasekara and L. M. Abeywickrama, 102–105. Kamburupitiya, Sri Lanka: University of Ruhuna.
- Edmunds, W. M., P. Shand, P. Hart, and R. S. Ward. 2003. The natural (baseline) quality of groundwater: A UK pilot study. The Science of the Total Environment, 310:25–35.
- Environmental profile of Muthurajawela and Negombo lagoon. 1991. Amsterdam: Greater Colombo Economic Commission, EUROCONSULT.
- Jiang, Y., Y. Wu, C. Groves, D. Yuan, and P. Kambesis. 2009. Natural and anthropogenic factors affecting the groundwater quality in the Nandong karst underground river system in Yunan, China. Journal of Contaminant Hydrology, 109:49–61.
- Karim, B., and M. F. Taha. 2003. Using principal component analysis to monitor spatial and temporal changes in water quality. Journal of Hazardous Materials, 100:179–95.
- Liu, C. W., K. H. Lin, and Y. M. Kuo. 2003. Application of factor analysis in the assessment of groundwater quality in a blackfoot disease area in Taiwan. The Science of the Total Environment, 313:77–89.
- The national atlas of Sri Lanka. 2007. 2nd ed. Colombo, Sri Lanka: Survey Department.
- Ranjan Priyantha, S. 2005. Assessment of groundwater vulnerability in Walawe river basin, Sri Lanka. Journal of the Institute of Engineers Sri Lanka, 38:25–31.
- Masahiko, S., T. Yusuke, and N. Kei. 2012. Numerical study on sea water intrusion in non-uniform aquifers, Journal of Hydroscience and Hydraulic Engineering, 30:77–86.
- Swan, B. 1983. An introduction to the coastal geomorphology of Sri Lanka. Colombo, Sri Lanka: National Museums of Sri Lanka.
- Tu, J. 2011. Spatially varying relationships between land use and water quality across an urbanization gradient explored by geographically weighted regression. Applied Geography, 31:376–92.
- Werner, D. A., M. Bakker, E. A. Post, A. Vandenbohede, C. H. Lu, B. Ataie-Ashtiani, S. T. Craig, and D. A. Barry. 2013. Seawater intrusion processes: Investigation and management: Recent advances and future challenges. Advances in Water Resources, 51:3–26.
- Wijesekara, R. S., and C. Kudahetti. 2011. Water quality study in the shallow aquifer system of the Attanagalu oya basin. In Proceedings of the workshop on challenges in ground water management in Sri Lanka eds. M. U. A. Tennakoon, D. C. S. Elakanda, R. S. Wijesekara, R. Boals, S. De Silva and J. Weerakoon, 5–18. Sri Lanka: Ministry of Irrigation and Water Resource Management, Water Resource Board and Dam Safety and Water Resource Planning Project.