Comparison Between Future Water Potential And Future Water Demand For Tanzania Water Basins
Volume 3 - Issue 9, September 2019 Edition
[Download Full Paper]
Swilla L. M, Tendwa S. M, Lufega S
Surface Water Potential; Ground Water Potential; Water basins; Comparison; Tanzania
Surface and ground water sources are the main water sources in Tanzania. In this study Comparison between water potential and water demand up to 2035 for Tanzania water Basins will be presented. The data for Surface water potential, Ground water potential and water demand for all nine major water basins in Tanzania for 2015, 2025 and 2035 were corrected. The Water demand considered were Rural and Urban Water demand, Irrigation, Livestock and Industrial water demand, Mining, Hydropower generation and Environmental Water Requirements. The total water potential (Surface and Ground Water) was calculated, thereafter the percentage of total water demand to total water potential was estimated for 2015, 2025 and 2035. In 2015 the percentage of total water demand to total water potential was 48.83 %, in 2025 is expected to be 56.24 % and in 2035 is expected to be 58.4 %, this implies that the country will face a water stress situation in coming years. The water potential is expected to increase by 0.92% from 2015 to 2025 and 0.071% from 2025 to 2035; this implies that the water potential is diminishing however there is slightly increase of surface water potential.
. M. Abdullahi and Iliyasu Garba, ‘‘Effect of Rainfall on Groundwater Level Fluctuation in Terengganu’’, Journal of Remote Sensing & GIS, 4:142. doi:10.4172/2469-4134.1000142, 2015
. Qi Peng, G. Zhang, Y. Jun Xu, Lei Wang, Changchun Ding and Chunyang Cheng, ‘‘Assessing the Influence of Precipitation on Shallow Groundwater Table Response Using a Combination of Singular Value Decomposition and Cross-Wavelet Approaches’’, Journal/water 10, 598; doi:10.3390/w10050598 2018, 2018.
. Bhaskar Narjary, Satyendra Kumar, S. K. Kamra, D. S. Bundela and D. K. Sharma, ‘‘Impact of rainfall variability on groundwater resources and opportunities of artificial recharge structure to reduce its exploitation in fresh groundwater zones of Haryana, Division of Irrigation and Drainage Engineering, Central Soil Salinity Research Institute’’, Journal of Current Science, VOL. 107, NO. 8, India, 2014
. D. O. Valerie Kotchoni1, Jean-Michel Vouillamoz, Fabrice M. A. Lawson1, Philippe Adjomayi, Moussa Boukari and Richard G. Taylor, ‘‘Relationships between rainfall and groundwater recharge in seasonally humid Benin: a comparative analysis of long-term hydrographs in sedimentary and crystalline aquifers’’, Hydrogeology Journal (2019) 27:447–457, 2018
. Chyan-Deng Jan, Tsung-Hsien Chen and Wei-Cheng Lo, ‘‘Effect of rainfall intensity and distribution on groundwater level fluctuations’’, Journal of Hydrology (2007) 332, 348– 360, Taiwan, 2006
. J. Kashaigili, Final report on ‘‘Assessment of ground water availability and its current and potential use and impacts in Tanzania’’, Morogoro, Tanzania, 2010
. Stacey Noel, ‘‘The economics of climate change in Tanzania, Water resources, Stockholm Environment Institute, SEI-Africa Centre; Institute of Resource Assessment, University of Dar es Salaam, 2012
. UNICEF and Tanzania Water, Sanitation and Hygiene budget brief report, 2018
. United Republic of Tanzania, National Water Policy, Ministry of Water and Livestock Development, 2002
. Integrated Water Resources Management and Development Plan Reports for Tanzania Water Basins, Ministry of Water and Irrigation, 2015