1. Scheme of the territory

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Following the analysis of the issues summarized in the diagram above, three major cross-cutting issues—intersecting the dimensions of water, energy, food, and ecosystems—were identified during workshops (November 17, 2025, and January 6, 2026):

The strategic sharing and allocation of water among different sectors (drinking water, agriculture, food, industry, fire risk, navigation, hydropower, river and lagoon fisheries, recreation, etc.), as this resource is already under strain. Solidarity becomes all the more necessary given that by 2065, the flow of the Aude River could decrease by an average of 10% from March to September, and by up to 50% from May to June. Thus, what prospects are desirable for sectors that already have little water, will have less and less, or even have none or no longer have any?

The sustainability and profitability of agricultural activity. The economic and agronomic challenges of wine production are already leading to a decline in cultivated areas and make it urgent to work on the adaptability and sustainability of the systems in question. The role to be given to locally valued food production is also a complex issue, given its current low share and the fragile purchasing power of many households in the Grand Narbonne community of municipalities. Finally, how can we envision diversification in viticulture and harness the potential of new food crops in the region?

Land allocation at the regional level, particularly agricultural land. The growing prevalence of brownfield sites and the diverse perspectives on them mean that their future—and in particular their potential for redevelopment—must be examined as a multisectoral issue (what uses, what strategies, what regional and political coordination, etc.). The pressures associated with agrivoltaic projects under the 2023 Renewable Energy Acceleration Act add the challenge of objectively evaluating and supporting applications within the Regional Nature Park (PNR). How should we approach the link between diversification and the pressures of agrivoltaics? Finally, while land access may be complex for certain projects given their specific characteristics (pastoralism, market gardening), project developers should be supported with a regional perspective.

2. A network of stakeholders at the intersection of water, energy, food, and ecosystems

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