Assessing the Impacts of Land use/cover Change on the Hydrological Response of Temcha watershed, upper Blue Nile basin, Ethiopia
Keywords:
ARC GIS, land use /cover, SWAT, Temcha WatershedAbstract
Information on the relationship between hydrologic response and land use /cover change was vital for the proper management of water resources and land use planning across the world. The main objective of this study was to assess the impacts of land use/cover change on the hydrological response of Temcha watershed. ARC GIS did the hydrological modeling with an extension of ARC SWAT model and the model calibration and validation by SWAT CUP. The result in the calibration and validation period showed a good agreement between the observed and simulated data, both in the calibration and validation period respectively. the land use/ cover change had a significant impact on modeled watershed hydrologic response due to the transition from forest, grass, and shrub land to cultivated land areas resulted in annual and seasonal water yield, total aquifer recharge and surface runoff potential. These results demonstrate the usefulness of integrating remote sensing and distributed hydrologic models using GIS for assessing watershed conditions and the relative impacts of land cover transition on the hydrologic response continuous.
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References
ABEBE, S. 2005. Land-Use and land-Cover Change in Headstream of Abbay Watershed. Blue Nile River Basin.
ARNOLD, J. G., MORIASI, D. N., GASSMAN, P. W., ABBASPOUR, K. C., WHITE, M. J., SRINIVASAN, R., SANTHI, C., HARMEL, R., VAN GRIENSVEN, A. & VAN LIEW, M. W. 2012. SWAT: Model use, calibration, and validation. Transactions of the ASABE, 55, 1491-1508.
BEWKET, W. 2003. Towards integrated watershed management in highland Ethiopia: the Chemoga watershed case study.
CHOI, W. & DEAL, B. M. 2008. Assessing hydrological impact of potential land use change through hydrological and land use change modeling for the Kishwaukee River basin (USA). Journal of Environmental Management, 88, 1119-1130.
CSA 2007. Summary and statistical report of the 2007 population and Housing
census: population size by age and sex. Addis Ababa. Federal Democratic
Republic of Ethiopia Population Census Commission.
DESSIE, G. & KLEMAN, J. 2007. Ecological and human spatial boundaries and their impact on forest management and forest decline in Wondo Genet, Ethiopia.
KOCH, F. J., VAN GRIENSVEN, A., UHLENBROOK, S., TEKLEAB, S. & TEFERI, E. 2012. The Effects of land use change on hydrological responses in the choke mountain range (Ethiopia)-a new approach addressing land use dynamics in the model SWAT.
MENGISTU, K. T. 2009. Watershed hydrological responses to changes in land use and land cover, and management practices at Hare Watershed, Ethiopia.
MÛELENAERE, S., FRANKL, A., HAILE, M., POESEN, J., DECKERS, J., MUNRO, N., VERAVERBEKE, S. & NYSSEN, J. 2014. Historical landscape photographs for calibration of Landsat land use/cover in the Northern Ethiopian highlands. Land Degradation & Development, 25, 319-335.
PRICE, K. 2011. Effects of watershed topography, soils, land use, and climate on baseflow hydrology in humid regions: A review. Progress in physical geography, 35, 465-492.
TESFAHUNEGN, G. B., VLEK, P. L. & TAMENE, L. 2012. Management strategies for reducing soil degradation through modeling in a GIS environment in northern Ethiopia catchment. Nutrient cycling in agroecosystems, 92, 255-272.
VÖRÖSMARTY, C. J., MCINTYRE, P. B., GESSNER, M. O., DUDGEON, D., PRUSEVICH, A., GREEN, P., GLIDDEN, S., BUNN, S. E., SULLIVAN, C. A. & LIERMANN, C. R. 2010. Global threats to human water security and river biodiversity. Nature, 467, 555.
WACKERNAGEL, M. & REES, W. 1998. Our ecological footprint: reducing human impact on the earth, New Society Publishers.
ZELEKE, G. & HURNI, H. 2001. Implications of land use and land cover dynamics for mountain resource degradation in the Northwestern Ethiopian highlands. Mountain research and development, 21, 184-191.
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