Management approaches for Nigeria's water resources

Oteze, G. E.

doi:10.4314/jmg.v42i1.18840

Cited by 9 publications

(12 citation statements)

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“…Groundwater is considered as a vital resource for developing countries, because of the prime source for irrigation, industrial use and domestic uses (Hoque et al 2007). Groundwater resource development and management is related to population growth, which has a signifi cant impact on the changing depth of groundwater level (Oteze 2006).…”

Section: Introductionmentioning

confidence: 99%

Groundwater depletion scenario in the north-eastern and south eastern part of Bangladesh

Kutub¹

2015

Journal of Nepal Geological Society

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Groundwater is one of the most important freshwater sources in Bangladesh which is used for drinking, household chores and irrigation. Due to high population pressure and excessive withdrawal, this important resource is under a lot of pressure. This study is designed to assess the present groundwater condition of the entire eastern region of Bangladesh. Groundwater depth data of 271 wells from 21 districts were collected from Bangladesh Water Development Board (BWDB) and analyzed in ArcGIS and Microsoft Excel software. During the pre-monsoon period, the groundwater lies beneath 2 to 14 meters of sediment. In the dry season, the groundwater remains between 4 and 12 meters in the northeastern part of Bangladesh. The larger values are mostly associated with urban areas. In case of southeastern part, groundwater level ranges from 2 to 8 meters. But the urbanized areas have groundwater levels in ranges in between 6 and 12. Compared to northern part, groundwater is found closer to surface in the southern part of the study area, Comilla, Mymensingh and Kishorganj. During monsoon season, there is a wide disparity of groundwater condition in the northeastern part, but southeaster part shows homogeneity. So, signifi cant variation in groundwater depth (seasonal as well as spatial) is seen throughout the study area. The impact of urbanization is seen clearly which leads to lowering of groundwater level that can cause catastrophic events like earthquake, subsidence and pollution.

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Section: Introductionmentioning

confidence: 99%

Groundwater depletion scenario in the north-eastern and south eastern part of Bangladesh

Kutub¹

2015

Journal of Nepal Geological Society

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“…Njaba River in the Niger Delta Basin is precisely located within Latitudes 5˚44' and 5˚47' North and Longitudes 6˚49' and 7˚03' East (Figures 1 and 2). The river has a shoreline length of 26.5 km, mean depth of 4.5m and an average specific discharge of about 1700 m 3 /hour, [1].…”

Section: Introductionmentioning

confidence: 99%

“…The water resources master plan prepared by the Japan International Cooperation Agency (JICA) indicates an estimated surface water resource of 2.67 × 10 11 m 3 /year and an underground storage of about 0.52 × 10 11 m 3 /year hour, [1] in Nigeria. These figures greatly outweigh the country's total water demand of about 0.40 × 10 11 m 3 /year.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Assessment of the Physico-Chemical and Microbial Trends in Njaba River, Niger Delta Basin, Southeastern Nigeria

Ahiarakwem¹,

Onyekuru²

2011

JWARP

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Water quality monitoring at five (5) different gauge stations on the course of Njaba River was undertaken to understand the variability of the physico-chemical and microbial contents of the river water within a specified period of time (2003-2008). Collected water samples were analyzed using Atomic Absorption Spectrophotometer (AAS), Digital Meters and Standard Plate Counts. Results of the analyses indicated that average pH, electrical conductivity and the Total Dissolved Solids (TDS) of the Njaba River in 2003 were 6.3, 22 µS/cm and 13.5 mg/l, respectively. Mean values in 2008 for the same parameters were 6.4, 24.4µS/cm and 14.7 mg/l, respectively. Mean concentrations of analyzed cations (Ca2+, Mg2+, Na+ and K+) in 2003 were 4.10, 0.15, 5.00 and 1.20 mg/l, respectively, and that obtained for same parameters in 2008 were 4.40, 0.18, 6.40 and 1.30 mg/l, respectively. The mean concentrations of analyzed anions (HCO3 - , SO4 2-, Cl- and NO3 - ) in 2003 were 20.0, 4.0, 1.30 and 0.20 mg/l, respectively and in 2008 the mean concentrations were 24.5, 4.20, 1.60 and 0.22 mg/l, respectively. Characterization of the river water followed the trend: Na+ > Ca2+ > K+ > Mg2+ (for the cations) and HCO3 - > SO4 2- > Cl- > NO3 - (for anions), showing the Njaba River is NaHCO3 water. Mean concentrations of Dissolved Oxygen (DO) and Biochemical Oxygen Demand (BOD) of the river water were 7.2 and 2.2 mg/l, respectively in 2003, and 8.0 and 4.0 mg/l respectively, in 2008. Total Coliform Counts of the river water in 2003 ranged from 70 - 90 cfu/100ml with a mean value of 80 cfu/100ml, while the counts in 2008 ranged from 100 - 120 cfu/100ml with a mean value of 110 cfu/100 ml. Calculated Pollution Index (PI) slightly increased from 0.72 in 2003 to 0.73 in 2008. These water quality determinants revealed gradual rise in the concentrations of the respective physico-chemical parameters and bacteriological constituents of the Njaba River water. Sodium Adsorption Ratio (SAR) of 1.37 in 2003 and 1.54 in 2008, however, indicated that the river remained excellent for irrigation purposes. Except for the observed low pH and poor bacteriological quality, all other measured parameters of the Njaba River water conformed to the World Health Organization (WHO) standards for safe drinking water. The generally decreasing low pH value and progressively increasing Coliform Counts and nutrient contents (although still low) were the major environmental problems observed in the Njaba River water. These problems are essent...

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“…Despite the huge water resources, water resources development has not been able to keep pace with the phenomenal population growth (Oteze, 2006). With rising population, water resources represent a major prerequisite and driver of socio-economic development.…”

Section: Introductionmentioning

confidence: 99%

Problems and Options of Integrated Water Resources Management in Nigeria: Administrative Constraints and Policy Strategies

Nwankwoala

2014

ILNS

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Nigeria has greater challenges when it comes to water development and management. The current water resources development and supply status is unacceptably low and needs a major transformation. With the rapid growth in population, urbanization, industrialization and competition for economic development, water resource has become vulnerable to depletion and degradation. Management of this valuable resource is determined by its acceptability and utilization in terms of quantity and quality. Due to imbalance between demand and availability, management approaches are facing various ethical dilemas. This paper therefore considers the water supply and sanitation situation in the country and the challenges facing the sector. The paper calls for institutional reforms and review of policy targets, define key elements for the development of action and investment plans as well as provide some guidelines in order to minimize duplication and maximize effectiveness. The paper also suggested strategies and viable framework/agenda for sustainable water supply and emphasizes that the machinery of water resources development and management needs an urgent overhauling with the aim of streamlining the overlapping functions of the various agencies that have operated the system up till now. More importantly, the paper suggested integrated approaches/strategies for sustainable management as well as offers relevant policy recommendations for water resources management in Nigeria.

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Management approaches for Nigeria's water resources

Cited by 9 publications

References 0 publications

Groundwater depletion scenario in the north-eastern and south eastern part of Bangladesh

Groundwater depletion scenario in the north-eastern and south eastern part of Bangladesh

A Comparative Assessment of the Physico-Chemical and Microbial Trends in Njaba River, Niger Delta Basin, Southeastern Nigeria

Problems and Options of Integrated Water Resources Management in Nigeria: Administrative Constraints and Policy Strategies

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