Impact and evaluation of potential implications of coastal plains on soil greenhouse gas emissions: Insights from the Sibari Coastal Plain (Calabria, Southern Italy)

• DOI: 10.1016/j.scitotenv.2025.178611
• Publication Date: 2025-01-24T08:38:48Z
• Authors: C. Apollaro; G. Vespasiano; I. Fuoco; M. Taussi; R. De Rosa; M.F. La Russa; A. Guido; D. Di Curzio; A. Renzulli; L. Russo; F. Ciniglia; F. D'Amico; M. Cipriani; G. Maruca; G. Virgili; A. Bloise
• Keywords: Coastal plain

The work aims to estimate natural greenhouse gas emissions from soils in the Sibari Coastal Plain (Southern Italy), understand (i) contribution terms of total amount CO2 and CH4 emitted non-volcanic areas, (ii) relationship among gas, land use, organic matter tectonic structures, (iii) their potential environmental implications. Data were elaborated with statistical geostatistical methods separate different populations obtain prediction probability maps. Methane fluxes had values consistently below detection limit (0.032 g ∙ m-2 d-1) except for three measurement points randomly distributed along plain. Statistical allowed discriminate main flux populations: high-flux population (Pop. B - mean value 63.65 d-1), located near mouth Crati River related massive presence buried form peat; medium-flux A2 8.37 which is result soil respiration, low-flux A1 1.85 due areas where low permeability or increases saturated aquifer thickness may control overall flux. In study area, a emission about 2671 t d-1 was calculated, which, if compared average expected simple respiration (1284 represents non-negligible Carbon balance. Finally, comparison representative normalized volcanic confirms critical role coastal plains atmospheric emissions. proposed approach can be applied comparable geological climatic settings trace release atmosphere.