Ex post impact assessment of Marwa rehabilitation on irrigation performance under water scarcity in Egypt.

ABSTRACT: Egypt faces growing water scarcity due to population pressure and inefficient on-farm irrigation practices. Improving on-farm water-use efficiency is essential for sustaining agricultural productivity. This study assesses the long-term impacts of rehabilitating on-farm ditches (Marwas) serving 3-5 acre farms in the Hafez El Sharkeya Canal command area, Menia Governorate, five years after implementation. A combined technical and socio-economic assessment was conducted using hydraulic measurements, geometric surveys, and interviews with 40 farmers (20 beneficiaries and 20 non-beneficiaries). Results showed that rehabilitated Marwas with uniform, prismatic cross-sections facilitated better water conveyance and consistently met peak summer demand, while unimproved ones suffered from water loss

SUBMITTER: Embaby M 

PROVIDER: S-EPMC12823578 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature