Effect of Livelihood Interactions on Farmers' Adaptive Capacity to Climate Change: Insight from Medenine Governorate, Southeast Tunisia

Abstract

The Sustainable Livelihood Approach (SLA) assumes that all capitals are complementary and that more capital assets would lead to greater adaptive capacity. However, the SLA neglects the interactions and transformations between different livelihood capitals. This paper suggests a methodological approach to understand how different capitals may be structured, transformed, and used to improve the farm households’ adaptive capacity to climatic stresses. Data for this study were gathered by means of a questionnaire survey during 2018 from 100 farm households representing the main farming systems of Medenine governorate, Southeast of Tunisia. The analyses were carried out using three tools following a stepwise approach. First, to understand the interactions that exist between the different capitals, a Principal Component Analysis (PCA) was carried out. Then, the adaptive capacity was calculated using the PCA results. Finally, using the Pearson's correlation index, the impact of livelihood assets on adaptive capacity was tested. The results demonstrated that households are trying to compensate for the lack of certain assets through interactions with others in order to improve their adaptive capacity. Moreover, human, natural and financial capital seem to better influence the adaptive capacity of farmers, while the impacts of physical and social capital are relatively less important. These results have improved our comprehension of the livelihood capital purpose for strengthening the existing approaches that enhance the adaptive capacity. Finally, this study has demonstrated that exploring the interactions between livelihood capitals is a first concern, which should be incorporated into adaptive capacity planning and policy development.