Abebe Chukalla

Abebe Chukalla
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Email: a.chukalla@un-ihe.org
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I am an irrigation engineer and expert in water footprint assessment. Currently, I am lecturer/researcher in Remote Sensing and Crop Water Productivity at IHE Delft. My research and project work contribute to addressing water and food security challenges. I am interested in integrating remote sensing data and human interaction to models to understanding the interaction of water and nutrient in crop production at field, irrigation scheme and river basin scales; identifying the effectiveness of management measures in closing productivity gap and improving irrigation performances within a safe and just space for society.
During my PhD at the University of Twente, I examine the effect of irrigation and agronomic measures on the green and blue water-balance components, N fluxes and yield using AquaCrop, APEX and shadow-water-balance models. Further, I assess the cost-effectiveness of management strategies for reducing the consumptive and degradative water uses in crop production; examine the trade-offs between the blue and grey water footprint (WF); and explore the scope for minimising green, blue and grey WF using WF assessment tool written in Python. As a postdoc in Wageningen University, I work on a project: Checks and Balances for RUE assessment: reducing yield gaps while accounting for nutrient- and water fluxes across spatiotemporal scales.

Selected publications

Chukalla, A.D., Krol , M.S. & Hoekstra, A.Y. (2018) Grey water footprint reduction in irrigated crop production: effect of nitrogen application rate, nitrogen form, tillage practice and irrigation strategy, Hydrology and Earth System Sciences, 22(6): 3245-3259. Find it here

Chukalla, A.D., Krol, M.S. & Hoekstra, A.Y. (2018) Trade-off between blue and grey water footprint of crop production at different nitrogen application rates under various field management practices, Science of the Total Environment, 626: 962-970. Find it here

Chukalla, A.D., Krol , M.S. and Hoekstra, A.Y. (2017) Marginal cost curves for water footprint reduction in irrigated agriculture: Guiding a cost-effective reduction of crop water consumption to a permit or benchmark level, Hydrology and Earth System Sciences, 21: 3507-3524. Find it here

Chukalla, A.D., Krol , M.S. & Hoekstra, A.Y. (2015) Green and blue water footprint reduction in irrigated agriculture: Effect of irrigation techniques, irrigation strategies and mulching, Hydrology and Earth System Sciences, 19(12): 4877–4891. Find it here