The Impact of forest and non‐forest cover on drinking water treatment costs: panel evidence from Ethiopia

Peer Reviewed
11 December 2020

Dawit W. Mulatu, Amare Fentie, Juha Siikamäki

Abstract

An empirical assessment of relationships between land use and land cover and drinking water chemical treatment cost is lacking in developing countries. This study is conducted to assess the impact of forest and non‐forest cover on water purification chemical costs in Ethiopia. A panel fixed effects regression model was applied and analyzed at the watershed, upstream parts of the watershed, and different buffer distances ranging from 2.5 to 30 kilometers. Findings indicated that forest cover both at watershed and upstream level has a significant effect on water treatment chemical cost. Results showed that watershed forest cover contributes significantly to the reduction of treatment chemical costs as compared to non‐forest cover, but the contribution to the reduction of treatment cost declines as the buffer distance increases. Thus, the findings highlighted that protecting forests enhances water quality and reduces the chemical costs incurred to treat potable water.

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Mulatu, D. W., Fentie, A., & Siikamäki, J. (2020). The Impact of forest and non‐forest cover on drinking water treatment costs: panel evidence from Ethiopia. Water and Environment Journal. doi:10.1111/wej.12669

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Publication | 14 December 2020