Effect of Slope and Runoff Trends on the Hydrological Response of River Kaduna
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Abstract
A monotonic upward/downward trends of hydrological variables was used to test the null hypothesis that slope and runoff trends have a significant impact on land use and land. The Mann-Kendall (M-K) and P- values statistical measurement were used to validate the null hypothesis against the observed data Relationships between gradients and climatic parameters for the hydrological response of Kaduna River was developed using geographic information tools (GIS). GIS maps of runoff, Digital Elevation Model (DEM), Land Use and Land were established Mann-Kendall (M-K) trend analysis was used to identify trends in climate parameters. The data used are precipitation, evapotranspiration, runoff, and temperature over a 30-year period from 1992 to 2021 obtained from the Kaduna State Water Authority and the Nigerian Meteorological Service. Results of the trend analysis of annual runoff and rainfall indicates the same M-K and P-values of 0.094 and 0.475which are all greeter than 0.05 significant level but the magnitude of Seen slope for rainfall and runoff are 5.130 and 0.016 demonstrating that rainfall is the major driving variable foe runoff generation. The annual evapotranspiration has M-K and P-values of 0.126 and 0.335 while the values for average annual temperature are 0.138 and 0.292. Land use in parts of the study area exhibits unstable ecosystems and vulnerable hilly terrain, suggesting that seasonal runoff and corresponding hydrological responses of rivers are dominated by changes in precipitation.
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References
Evans, R. (1980). Mechanisms of Water erosion and their Spatial and Temporal Control; an Empirical Viewpoint in Kirkby. Soil erosion, 109-128.
Wischmeier, W.H. (1959). A Rainfall Erosion Index for a Universal Soil- Loss equation. Soil Science Society of American Journal 23(3), 246-249.
Hibbert (1967). Factors affecting the Response of Small Watersheds to Precipitation of Humid areas. Forest hydrology.
Shulze, R.E. (2000). Modelling Hydrological Response to Land use and Climate Change; A Southern African Perspective. Ambio 12-22.
Iqbal, M., Wen, J., Masood M, U. & Adam, M. (2022). Impacts of Climate and Land use Changes on Hydrological Processes of the source Region of Yellow River, China. Sustainability.
Alemu, M.G., Wubneh, M.A., Workut, A. (2022). Impact of Climate Change on Hydrological Response of Mojo River Catchment, Awash River Basin, Ethiopia. Grocerto International, 2152497.
Mann, H.B. (1945) Non parametric test against trend.Econometrica, 13, 245.
Kendel, M.G. Rank (1955). Correlation methods London. Charles Griftin,
Haruna, G. & Udeme, U.U. (2023). Analysis of Trend in Meteorological and Hydrological Time Series Using Mann-Kendel and Sen’s Slope Estimator Test in Akwa Ibom State, Nigeria. International Journal of Environment and Climate Change 13(10), 1017-1035.
Tabari, H. & Talaee, P.H. (2011). Aanlysis of trends in temperature data in arid and semi-arid regions of Iran, Global and Planetary Change.79(1-2), 1-10.
Ashaw, A., Simane, B. Hassen, A. & Bantider, A. (2018). Variability and time series trend analysis of rainfall and temperature in non-central Ethiopia; Acase study in Woleka Sub Basin; Weather and Climate Extremes 19, 29-41.
Garba, H., Ismail, A., Batagarawa, R.L., Ahmed, S. & Ibrahim, A. (2013). Climate change Impact on Sub-Surface Hydrology of Kaduna River Catchment. Open Journal of Modern Hydrology (3), 115-121. http://dx.doi.org//10.4236/ojmh.2013.32010.
Fang, K. & Shen, C. (2017). Full Flow Regime Storage Stream Flow Correlation Pattern Provide Insight into Hydrologic Functioning Over the Continental US. Water Resources Research. 53(9), 8064-8083
Hamed, K.H & Rao, A.R. (1998). A Modified Mann- Kendell Trend Test for Auto correlated Data. Journal of Hydrology, 204, 182-196
Chew, W.S. (2004). Study of Sensitivity Analysis of the Flood Plain River Basin Parameter. International Conference on Water Sensitive Urban Design.
Santos, J.C.N., Andrade, E.M. (2017). Effect of Rainfall Characteristics on Runoff and Water Erosion for different Land uses in Tropical Semiarid Region. Water Resources Management, 173-185.
Yadav, R., Tripalhi, S.K., Granuth, H.I. & Dubey, S.K. (2014). Trend Analysis by Mann- Kendall’s for Precipitation and Temperature for thirteen districts of Uttarakh and. Journal of Agrometeorology 16(12)
Pal, A.B., Khare, D., Mishra, P.K. & Singh, L. (2017). Trend Analysis of Rainfall, Temperature and runoff data: A case study of Rangood Water shed in Nepal. International Journal of Students Research Technology and Management.
El-Nesr, M., Alazba, A. & Zreig, M.A. (2010). Analysis of Evapotranspiration Variability and Trends in the Arabian Peninsula. American Journal of Environmental Sciences, 6(6), 535-547.