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Accueil du site → Doctorat → Pays-Bas → 2014 → Vulnerability and adaptation to climate variability and change in smallholder farming systems in Zimbabwe

Wageningen University (2014)

Vulnerability and adaptation to climate variability and change in smallholder farming systems in Zimbabwe

Rurinda, J.

Titre : Vulnerability and adaptation to climate variability and change in smallholder farming systems in Zimbabwe

Auteur : Rurinda, J.

Université de soutenance : Wageningen University

Grade : Doctor of Philosophy (PhD) Thesis 2014

Résumé partiel
Climate change and increased climate variability are currently seen as the major constraints to the already stressed smallholder farming livelihood system in southern Africa. The main objectives of this study were first to understand the nature and sources of vulnerability of smallholder farmers to climate variability and change, and second to use this knowledge to evaluate possible farm-level management options that can enhance the adaptive capacity of smallholder farmers in the face of increased climate variability and long-term change in climate. The study was conducted in Makoni and Hwedza districts in eastern Zimbabwe. Local famers’ and expert empirical knowledge were combined using research tools that mainly included detailed field observations and surveys, systems analysis and field experimentation, and simulation modelling (the Agricultural Production Systems Simulator (APSIM)). To understand the nature and sources of vulnerability, long term climate data were analysed and farmers were interviewed individually and in groups. On-farm experimentation and simulation modelling were conducted to evaluate the impacts and interactions of adaptation options namely maize cultivar choice, staggered planting dates, and variable fertilizer rates, on maize yield under both short-term climate variability and long-term climate change. Another on-farm experiment was conducted to assess whether small grains (finger millet and sorghum) perform as well as maize under variable soil and rainfall conditions.

Mots clés : climatic change - small farms - farming systems - climate adaptation - adaptation - climate - crop yield - Zimbabwe

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Page publiée le 18 novembre 2014, mise à jour le 20 décembre 2021