Dynamics and drivers of carbon sequestration and storage capacity in Phragmites australis-dominated wetlands

• DOI: 10.1016/j.ecss.2024.108640
• Publication Date: 2024-01-28T06:44:37Z
• Authors: Giulia Silan; Alessandro Buosi; Camilla Bertolini; Adriano Sfriso
• Keywords: Phragmites; Soil carbon

Coastal wetlands represent important ecosystems performing several functions leading to services. Out of those, the estimation carbon sequestration and storage capacity is receiving increasing attention for emissions abatement climate mitigation. Phragmites australis - dominated have sequester large amounts given biomass formed annually, however depends on various factors including environmental conditions that are site-specific. The aim this study was develop a method could be used quantify capacity, from site-specific plant growth drivers (temperature, light, soil nutrients) attributes (e.g., particle size soil). This achieved with combination sampling (above- below-ground biomass, nutrients content, at different depths) across whole Venice Lagoon area where P. forms habitats under conditions, using PCA approach link biotic abiotic variables. To upscale results, modelling in two steps used, taking first consideration nutrient availabilities then simulating fate (likelihood material remaining area, its decomposition rate, burial efficiency results confirmed positive effect availability, mediated by moisture, alignment model results. Soil type one main driver storage. knowledge dynamics can useful support management order mitigate change. Our model, calibration has potential predict enabling it as tool ecosystems.