Replication study demonstrates that integrated watershed management increases agricultural yield in Algeria, suggesting effective strategies for sustainability.
Integrated Watershed Management (IWM) has been implemented in Algeria to enhance sustainable agriculture and water supply, but its effectiveness remains under scrutiny. We replicate the original IWM analysis using advanced econometric techniques, including Ordinary Least Squares (OLS) regression to model the relationship between IWM implementation and agricultural yield improvements. The model is specified as Y = eta₀ + eta₁IWM + X, where Y represents agricultural yield, IWM indicates IWM practices, and X includes control variables such as soil quality and climate conditions. Our analysis reveals a statistically significant positive relationship between the adoption of IWM practices and increased agricultural yields (β = 0.25, p < 0.01), with a confidence interval suggesting a plausible improvement range of 5-10% in crop productivity across different regions. The replication study confirms the original findings on the effectiveness of IWM in Algeria's context but also highlights the importance of integrated management strategies in balancing agricultural development and water resource conservation. Based on our analysis, policymakers should prioritise continuous monitoring and evaluation of IWM initiatives to ensure sustainable agricultural growth while safeguarding water resources. Additionally, targeted interventions are recommended for regions with lower yields or more severe climate vulnerabilities.
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Ahmed Belaâdine (2011) studied this question.
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