The site is located within Finca La Llanada, a rice-growing property in the Ebro Delta managed under conventional farming practices. An eddy covariance tower was installed on May 7th, 2026 to continuously monitor ecosystem–atmosphere exchanges of greenhouse gas fluxes associated with rice cultivation. The site was established through a collaboration with the CLIMSES unit at Eurecat in Amposta, with the aim of advancing research on carbon dynamics and climate mitigation opportunities in Mediterranean rice agroecosystems. Like in Riet Vell, the field is flooded with freshwater through flood irrigation after rice is sown in the spring (May). In early autumn (October), the field is drained, the rice is harvested, and the site is left fallow until the next planting season.

The Alfacada Reserve is a 175,82 ha wetland located on the right bank of the Ebro River, near the area known as the Migjorn Gorge. This natural space had lost surface area to rice fields, the Delta’s dominant crop. However, this trend has been reversed thanks to the acquisition and management of the area by Fundació Catalunya-La Pedrera. They manage the wetland reserve in collaboration with Picampall and the Ebro Delta Natural Park. The site is part of the Natura 2000 Network. The site was originally a diked wetland maintained as a freshwater system. However, in the winter of 2024, the dike was removed as part of the EU REST-COAST project to restore its natural hydrological connectivity. Currently, the site is separated from the Mediterranean Sea by a coastal sand dune and only receives marine water during storm surges. On its eastern side, the wetland is connected to the Migjorn River branch.

With funding from the Net-Zero and C-BLUES projects, a flux tower was installed in April 2025 to monitor energy, H₂O, CO₂, and CH₄ fluxes. The tower’s footprint covers a marsh area dominated by emergent vegetation, primarily Phragmites and Juncus species.

The Riet Vell site is a commercial rice field owned and managed by SEO/BirdLife, located on a 52-hectare farm dedicated to organic rice cultivation. An eddy covariance tower was installed on December 20, 2024, to monitor ecosystem fluxes, with funding provided by the Net-Zero project. Each year, the field is flooded with freshwater through flood irrigation after rice is sown by drilling in the spring (May). In early autumn (October), the field is drained, the rice is harvested, and the site is left fallow until the next planting season.