Abstract
Groundwater, in many parts of the world, is under risk as a result of excessive withdrawal, mismanagement and contamination. A number of studies have been carried out in this respect, but most of them have not predicted groundwater quality concerning anthropogenic stress. As opposed to this, in this study, groundwater fluctuation with respect to human pressure was investigated in Hormat-Golina Sub-basin of the Golina-Basin of Ethiopia. Visual MODFLOW Flex 5.1 model was used to simulate groundwater flow in response to different stress periods in the study area. The study showed that the initial concentration values were measured in each nutrient chemical species. The impacts of climate change and human pressure on groundwater have been the greatest threats in those supply wells. Decreased in pumping rate with increased recharge rate has accomplished to restore and protect the groundwater resources which is the best option for groundwater restoration and monitoring. Anthropogenic pressures including the application of fertilizers were a considerable cause of degraded groundwater quality in relation to Nitrate and Phosphate concentration with series of time. The groundwater quality has deteriorating with the applied Urea and DAP fertilizes in the selected wells of Hormat-Golina Sub-basin. Farmers have encouraged using practices that minimize the risk of groundwater pollution by carefully controlling and timing of the use of fertilizers to avoid over application.
Highlights
Groundwater, in many parts of the world, is under risk because of excessive extraction, mismanagement and contamination as a result of anthropogenic factors in addition to natural causes such as climate change [2, 4,5,6,7]
The anthropogenic pressures including, application of fertilizers can cause a pollution of groundwater sources and the progressive deterioration of groundwater quality in relation to Nitrate and Phosphate concentration
All previous studies had not been explored the predicted groundwater flow dynamics concerning to anthropogenic stress, but this study has developed on the groundwater quality fluctuation with respect to human pressure
Summary
Groundwater, in many parts of the world, is under risk because of excessive extraction, mismanagement and contamination as a result of anthropogenic factors in addition to natural causes such as climate change [2, 4,5,6,7]. The anthropogenic pressures including, application of fertilizers can cause a pollution of groundwater sources and the progressive deterioration of groundwater quality in relation to Nitrate and Phosphate concentration. All previous studies had not been explored the predicted groundwater flow dynamics concerning to anthropogenic stress, but this study has developed on the groundwater quality fluctuation with respect to human pressure. In this Sub-basin since the establishment of the project, scientific studies had not been conducted in related to the effect of chemical fertilizers on groundwater quality. The present study has initiated to quantify the groundwater head and its respected drawdown level in before and after irrigation season
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
