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Browsing Research and Innovation Unit ETDs by Author "Woyessa, Y.E."

Now showing items 1-7 of 7

Climate change and ecological systems : a conceptual framework for the understanding of socio-hydrological dynamics

Woyessa, Y.E.; Welderufael, W.A. (Interim : Interdisciplinary Journal, Vol 10 , Issue 1: Central University of Technology Free State Bloemfontein, 2011)

A functioning ecological system results in ecosystem goods and services which are of direct value to human beings. Ecosystem services are the conditions and processes which sustain and fulfill human life, and maintain ...
Comparison between two meteorological drought indices in the central region of South Africa

Edossa, D.C.; Woyessa, Y.E.; Welderufael, W.A. (Interim : Interdisciplinary Journal, Vol 13, Issue 3: Central University of Technology Free State Bloemfontein, 2013)

The objective of this study was to characterize meteorological droughts in the Central Region of South Africa, Modder River Basin, C52A quaternary catchment using two popular drought indices: Standardized Precipitation ...
Evaluation of the SWAT model in simulating catchment hydrology : case study of the Modder River Basin

Tetsoane, S.T.; Woyessa, Y.E.; Welderufael, W.A. (Interim : Interdisciplinary Journal, Vol 13, Issue 3: Central University of Technology Free State Bloemfontein, 2013)

This paper presents the set-up and the performance of the SWAT model in the Modder River Basin. Two techniques widely used, namely quantitative statistics and graphical techniques, in evaluating hydrological models were ...
Evolving assessment strategies in engineering education : perceptions and practices

Woyessa, Y.E.; Van Tonder, S.P.; Van Jaarsveldt, D. (Interim : Interdisciplinary Journal, Vol 13, Issue 3: Central University of Technology Free State Bloemfontein, 2013)

In the actual learning situation, students develop context specific strategies for learning in response to their own perceptions of the requirements for learning. Among all the contextual factors, assessment has been ...
Impact of land use on water resources of the Modder River basin in central South Africa

Welderufael, W.A.; Woyessa, Y.E. (Interim : Interdisciplinary Journal: Vol 9, Issue 2: Central University of Technology Free State Bloemfontein, 2010)

Along the path of water flowing in a river basin are many water-related human interventions that modify the natural systems. Rainwater harvesting is one such intervention that involves abstraction of water in the upstream ...
Runoff and soil loss under different tillage and cropping system practices at Ginchi Vertsol in Ethiopia

Welderufael, W.A.; Woyessa, Y.E. (Interim : Interdisciplinary Journal, Vol 13, Issue 3: Central University of Technology Free State Bloemfontein, 2013)

To assess and predict runoff and soil loss on different tillage methods coupled with alternative cropping systems in the central highland vertisols of Ethiopia, a study was carried out at Ginchi, Agricultural Research ...
Stream flow analysis and comparison of methods for base flow separation : case study of the Modder River basin in central South Africa

Welderufael, W.A.; Woyessa, Y.E. (Interim : Interdisciplinary Journal, Vol 8, Issue 2: Central University of Technology Free State Bloemfontein, 2009)

A stream flow at an outlet of a catchment can be entirely a base flow or direct flow or a combination of both. The base flow component of a stream is mainly contributed from the ground water storage which often is an open ...

Browsing Research and Innovation Unit ETDs by Author "Woyessa, Y.E."

Browsing Research and Innovation Unit ETDs by Author "Woyessa, Y.E."

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