Climate Variability, Land-Cover and Vegetation Dynamics in Ethiopia

Context and background Ethiopia's agricultural sector, primarily consisting of rain-fed smallholder farming, is facing increasing vulnerability due to the combined impacts of climate variability and changes in land cover. In recent years, changes in temperature and precipitation patterns, along with environmental degradation, have posed significant challenges to vegetation health and crop productivity. This study aims to explore how these climatic and ecological factors interact to affect agricultural outcomes. Goal and Objectives: The goal of this study is to assess the spatial and temporal risks of seasonal drought and climatic water shortages in Ethiopia by analyzing observed and projected precipitation and temperature trends. Additionally, the study examines changes in land cover and the relationship between climate variability and vegetation dynamics to understand their combined effects on crop damage and regional land productivity. Methodology: The study utilizes a multi-method approach, including the Coefficient of Variation, Precipitation Concentration Index, and Standardized Precipitation Index to evaluate rainfall variability, drought trends, and temperature trends. Results: The study reveals a long-term warming trend in Ethiopia, characterized by increasing mean and minimum temperatures. While average rainfall levels have remained relatively stable, there has been an increase in variability, leading to more frequent droughts affecting 37.5% of seasons. These climatic changes are closely linked to declining vegetation health, changes in land cover, and worsening soil degradation, resulting in significant crop damage. Future climate projections under different scenarios show a complex outlook, with persistent droughts expected in the short term (2020–2039) and wetter conditions with increased flood risks in the long term (2080–2099) under high-emission pathways. The study also emphasizes the importance of integrated water resource management due to high inter-seasonal precipitation correlation. These findings underscore the need for localized, evidence-based adaptation strategies to enhance agricultural resilience and ensure food security in Ethiopia's vulnerable farming systems. Keywords Land cover change, climate variability, agriculture, vegetation dynamics, drought, Ethiopia