RT Conference Proceedings
T1 Saltpan as carbon sink.
A1 Warren-Jiménez, Paula
A1 Ledesma-Hernández, Guillermo
A1 Sánchez de Pedro Crespo, Raquel
A1 Ruiz Nieto, Miriam
A1 Rodríguez-Gómez, Sofía
A1 Montes-Pérez, Jorge Juan
A1 Conejo-Orosa, Teresa
A1 Gil Gil, Teresa
A1 Mancebo-Romero, Lidia
A1 Moreno-Ostos, Enrique
K1 Carbono - Fijación
K1 Salinas
K1 Biogeoquímica
AB Part of the Marchamalo saltpans (Murcia, Spain) has been abandoned for 28 years. Theproject “RESALAR” aims to restore 8 ha of this saltpan to extract salt in a traditional waywhile preserving biodiversity and historical heritage. The principal primary producers inhypersaline wetlands are microorganisms such as cyanobacteria and chlorophytes. Once themicroorganism’s biomass becomes part of the decomposing sediment organic matter, the highsediment salinity and moisture levels leads to an anoxic environment, allowing it to be buriedin the sediments. In this context, our study, previous to the restoration, aims to assess thecarbon stock accumulated during the period of disuse as well as measure the carbon dioxide(CO2) efflux from the saltpan to the atmosphere and the effect of various physicochemicalvariables on soil CO2 emissions. To determine the carbon stock in the first 0.5 m we extracteda core from every tank, analyzed the bulk density, organic carbon, inorganic carbon andsalinity in 5 cm sections. CO2 fluxes were measured using a soil respiration chamberconnected to an infrared gas analyzer, and samples were taken from the first 10 cm of soil toanalyze physicochemical variables. Our preliminary results shows that mean carbon stockvalue was 1349.71±251.39 Mg ha-1 and mean CO2 flux was 0.55±0.84 g m-2 h-1. Temperaturewas the main CO2 flux driver, while sediment moisture was the main carbon burial driver.Our results will be used to suggest management strategies to make the salt extractioncompatible with carbon burial
YR 2024
FD 2024
LK https://hdl.handle.net/10630/32092
UL https://hdl.handle.net/10630/32092
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026