Spatial and Seasonal Dynamics of Total Suspended Sediment, Total Dissolved Solids and Turbidity of a Lacustrine Reservoir in the Magoye Catchment, Southern Zambia



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Submitted Nov 30, 2021
Published Dec 22, 2021
10.24018/ejgeo.2021.2.6.227

Abstract viewed = 428 times

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Dissolved and suspended sediment that form part of the Total Sediment Load (TSL) affects the quality of water making it unsuitable for selected aquatic invertebrates and livestock. The study aimed at determining spatial and seasonal dynamics in the concentration levels and distribution of selected physical parameters in a small lacustrine system whose main problem was punctuated by rapid deposition of clastic and none-clastic sediment. Water sampling was done during the rainy and cool-dry seasons across the reservoir using sampling bottles and DGPS. Laboratory analysis was done to determine variations in concentration levels of the parameters over time and space. Distributions of selected parameters across the reservoir were analysed using 3D Spatial Analysts Tool, Inverse Distance Weighted (IDW) in ArcGIS 10.2. Using paired T-Test at 0.05 level of significance, the study found statistically significant differences (p<0.001) in the concentration of TDS, TSS, and turbidity between the rainy season and cool-dry season. With exception of TDS, TSS and turbidity were higher in the rainy season than in the cool-dry season. Rainfall was the main control variable regarding seasonality influence on TDS, TSS, and turbidity. The study concluded that although lacustrine reservoirs may be closed systems, they still experience variations spatially and temporally in terms of concentration of TDS, TSS and turbidity. The study recommends implementation of integrated catchment-wide management of anthropogenic activities so as to minimize excess generation, transportation and deposition of sediment, which punctuate elevated levels of TDS, TSS and turbidity.

Keywords: Invertebral biodiversity, Lacustrine Reservoir, Livestock, SDG14, Total Dissolved Solids, Total Suspended Sediment, Turbidity, Water Quality

References

  1. Sichingabula H.M. The Problem of Sedimentation in Small Dams in Zambia. Proceedings of the IAHS, 1997.
     Google Scholar
  2. Enhui J. Sedimentation Bears on the Life of Reservoirs. http://www.tcsr-icold.com/Detail/46 (28/4/2014), 2012.
     Google Scholar
  3. Kithiia S.M. and Mutua F.M. Impacts of land-use changes on sediment yields and Water quality within the Nairobi River sub-basins, Kenya; In: Sediment Dynamics and the Hydromorphology of Fluvial Systems. Nairobi: Hyslop, 2006.
     Google Scholar
  4. Mudyazhezha S. and Kanhukamwe R. Environmental Monitoring of the Effects of Conventional and Artisanal Gold Mining on Water Quality in Ngwabalozi River, Southern Zimbabwe. International Journal of Environmental Monitoring and Analysis. 2014; 2; 123-127.
     Google Scholar
  5. Sracek B., Bohdan K., Mihaljevič M., Majer V., František V., Zbyněk V. and Nyambe I. Mining-Related Contamination of Surface Water and Sediments of the Kafue River Drainage System in the Copperbelt District, Zambia: An Example of a High Neutralization Capacity System. Journal of Geochemical Exploration. 2012; 112:174–188.
     Google Scholar
  6. Dawson EJ, Macklin MG. Speciation of heavy metals on suspended sediment under high flow conditions in the River Aire, West Yorkshire, UK, Hydrol. Process, 12, 1483 1494, 1998.
     Google Scholar
  7. Naden P., Old G., Quinton J.N., Smith B., Worsfold P.J. Processes affecting transfer of sediment and colloids, with associated phosphorus, from intensively farmed grasslands: an overview of key issues, Hydrological Process, 20, 2006.
     Google Scholar
  8. Muchanga M. Determination of Sediment and Water Quality and Quantity for SWAT Modelling of Sedimentation in the Magoye Reservoir, Southern Zambia. Lusaka: University of Zambia, 2020.
     Google Scholar
  9. Zambia Meteorological Department (ZMD). Weather and Climate Data. Lusaka: ZMD, 2014.
     Google Scholar
  10. FAO. Guidelines Sheet of Water Quality Standards for Livestock. New York: FAO, 1978.
     Google Scholar
  11. Storr, A.E.G. (ed.). Know Your Trees. Lusaka: Zambia Forest Department Publishing, 1995.
     Google Scholar
  12. Central Statistical Office (CSO). National Census of Housing and Population. Lusaka: CSO, 2010.
     Google Scholar
  13. Ministry of Livestock and Fisheries (MLF). Livestock Census Report 2015. Monze: MLF, 2016.
     Google Scholar
  14. Castillo J.J. Snowball Sampling. Experiment Resources. http://www.experiment-resources.com/snowball-sampling.html. (16/02/2016), 2009.
     Google Scholar
  15. Bryman A. Social Research Methods. New York: Oxford University, 2008.
     Google Scholar
  16. Harder C. The ArcGIS Book. California: ESRI Press, 2017.
     Google Scholar
  17. Xun Z., Hua Z., Liang Z., Ye S., Xia Y., Rui L. and Li Z. Some factors affecting TDS and pH values in groundwater of the Beihai coastal area in southern Guangxi, China. Environ Geol, 2007; 53:317–323 (2007). https://doi.org/10.1007/s00254-007-0647-4.
     Google Scholar
  18. de Winter J.C.F. Using the Student‘s t-test with extremely small sample sizes. Practical Assessment, Research & Evaluation, 2013; 18(10). Available online: http://pareonline.net/getvn.asp?v=18&n=10. (Accessed: 25/2/2018).
     Google Scholar
  19. Olson J.R. and Hawkins C.P. Effects of Total Dissolved Solids on Growth and Mortality Predict Distributions of Stream Macro invertebrates. Freshwater Biology, 2017; 62:779-791.
     Google Scholar
  20. Muchanga M., Sichingabula H. M., Obando J., Chomba I.C., Sikazwe H. and Chisola M. Bathymetry of the Makoye Reservoir and its Implications on Water Security within the Catchment. International Journal of Geography and Geology. 2019; 8(3):93-109.
     Google Scholar
  21. Sichingabula M. H. Clastic Sediment Flux into Indian and Pacific Oceans by Rivers in Central Southern Africa and Western Canada. Manaus99- Hydrological and Geochemical Processes in Large Scale River Basins. 2000, p. 15- 19. Manaus, Brazil.
     Google Scholar
  22. Serajuddin M., Chowdhury A.I., Haque M and Haque E. Using Turbidity to Determine Total Suspended Solids in an Urban Stream: A Case Study. 2nd International Conference on Water and Environmental Engineering 19-22 Jan 2019, Dhaka.
     Google Scholar
  23. Butler, B.A. and Ford, R.G. Evaluating relationships between total dissolved solids (TDS) and total suspended solids (TSS) in a mining-influenced watershed. Mine Water Environ. 2018 March 31; 2019; 37(1): 18–30. Doi: 10.1007/s10230-017-0484-y.
     Google Scholar
  24. Hern T. K., Hin L. S., Ibrahim S., Sulaiman N. M. N., Sharifi M., & Abe S. Impact of Fine Sediment on TSS and Turbidity in Retention Structure. Journal of Geoscience and Environment Protection, 2014; 2:1-8. http://dx.doi.org/10.4236/gep.2014.24001.
     Google Scholar
  25. Ziegler A.C. Issues Related to use of Turbidity Measurements as a Surrogate for Suspended Sediment. Turbidity and Other Sediment Surrogates Workshop, April 30 – May 2, 2002. http://ks.water.usgs.gov/Kansas/rtqw/ (17/3/2017).
     Google Scholar
  26. Muchanga, M. A Survey of Public Participation in Planning for Climate Change Adaptation among Selected areas of Lusaka Province. American International Journal of Contemporary Research. 2012; 2:81-90. ISSN 2162-139. www.aijcrnet.com/journals/Vol_2_No_8_August_2012/8.pdf.
     Google Scholar