Since the 1970s, the Kebili region southern Tunisia has undergone significant territorial changes due to the expansion of date palm plantations based on illicit boreholes tapping the underlying deep aquifers. These private initiatives, called “extensions”, have developed on collective unfarmed areas, outside historical oases and have raised sustainability concerns. To address the groundwater sustainability, local actors need to build a joint vision of on-going dynamics. The objective of this study is: (i) to analyse the trajectories of the oasis extensions, (ii) to give an overview of the socio-economic and the environmental drivers and (iii) to assess how local actors assess these extensions. The study builds on spatial analysis, on surveys and participatory workshops with actors of the region. The development of extensions was triggered by economic factors and based on innovative ways of accessing water, land, and energy. Extensions, that were first created on lands in proximity of ancient oases then spread further-out to other areas, can be described as spontaneous. Other were developed on lands located far from ancient oases, with the support of local councils in charge of land management. Actors have identified the overexploitation of groundwater as the main threat to the sustainability of the region, but no discussion has been initiated yet on how to deal with this threat. Results derived from this study could support discussions about the future of these areas.
Operating irrigation systems when water supplies are insecure is a critical challenge for both farmers and managers. The aim of this paper is to analyse how farmers adapt to water scarcity and to investigate to what extent individual farmers' practices affected the management of a community‐managed irrigation system in an area with perennial citrus orchards in northern Tunisia. Results revealed a wide range of farmers' strategies and practices aimed at maximizing their access to surface water and groundwater according to their ability. But this resulted in increasing inequity, because the biggest farmers managed to access groundwater or practised drip irrigation, while the vulnerability of small farmers increased. In this context the introduction of drip irrigation has not led to water saving. These findings should encourage the adoption of fair collective rules that account for water scarcity and farmers' diversity. Copyright © 2017 John Wiley & Sons, Ltd.
Groundwater resources became a recognized enabler of important rural and socio-economic development in Mediterranean countries. However, the development of this groundwater economy is currently associated with an increased pressure on the available resource and negative implications on the socio-ecological system. Managing complex socio-ecological systems, such as those that occur in water resource management, is a multi-actor, multi-scale and dynamic decision-making process. This study aims to build a collective learning and collaborative construction tool through the territory game method. It was implemented in the Haouaria Plain, in Northern Tunisia, where farmers are currently dependent upon groundwater use for their livelihood and food security. After the diagnosis of the territorial issues, the drivers of change and a common spatial representation of the future trend of the territory, we dive into the dimensions that hinder or facilitate the implementation of scenarios and the pathways of actions. Thereafter, we analyzed these dimensions together again and reflect on the interactions among actors at different levels to transform the local territory. From the perspective of evolution scenarios for the Haouaria plain, the participants indicated the conditions that hinder or facilitate their implementation and they proposed twenty-three possible actions to be carried out in order to achieve the desired trends. They indicated how these propositions can be achieved, by whom, and where. The local stakeholders coordinate actors, activities and spaces on their territory. Spaces such as El Garâa basin, littoral forest or food processing companies are at stake to develop an integrated response to territorial issues.
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