Application of Methodologies for Environmental Flow Determination in an Andean and a Mediterranean Basin: Two Case Studies of the Pance River (Colombia) and Wadi River (Palestine) Basin

Yesid Carvajal-Escobar, Ziad Mimi, Saed Khayat, Saleh Sulieman, Wilson Garces and Guillermo Cespedes
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Yesid Carvajal-Escobar: Universidad del Valle, Colombia
Ziad Mimi: Birzeit University, Palestine
Saed Khayat: Palestine Technical University- Tulkarm, Palestine
Saleh Sulieman: Birzeit University, Palestine
Wilson Garces: Universidad del Valle, Colombia
Guillermo Cespedes: Universidad del Valle, Colombia

International Journal of Social Ecology and Sustainable Development (IJSESD), 2011, vol. 2, issue 4, 26-43

Abstract: The demand for sustainable water management has promoted the development of methodologies for estimating environmental flows (EF). In this paper, the EF in an Andean river (Pance, Colombia) for conservation and a Mediterranean river (Wadi-Zomar, Palestine) for restoration purposes is made. Different methodologies are applied given the objectives for each river. The authors used hydrological indices proposed for watersheds with different water regimes and adaptations and validations were made to the local context. These methods allow for estimating the EF at various points in the river and the assessment of disruption scenarios for decision-making. In the Wadi Zomar River, three sampling points were selected. The water samples were then examined for the presence of pathogens. No one indicator or simple hydrological parameter is entirely suitable for all environmental systems and pathogens. In the base flow conditions, the amount of pollutant load varied temporally according to the amount of load from point sources along the Wadi, and spatially with distance from the same sources. Significant variation was observed in response to the hydrological behavior of the catchment. The assessment for the water quality in the Zomar reflects a potentially serious threat to the environment. The results emphasize the need for regulating the seepage effluent from industries and sewage system along the stream.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:igg:jsesd0:v:2:y:2011:i:4:p:26-43

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