Net CO2 emissions from dry inland waters persist in the presence of vegetation

Résumé fourni par la source

This protocol outlines a standardized methodology for measuring CO2 fluxes from bare and vegetated dry sediments under both light and dark conditions. It provides a step-by-step procedure for estimating CO2 fluxes as well as sediment and vegetation characteristics in dry inland water bodies. The protocol describes methods and techniques for collecting and measuring sediment variables, including sediment temperature, moisture, total inorganic matter, organic matter, electrical conductivity, texture, pH, vegetation cover, and above-ground biomass. This work is part of the DRYFLUX-II initiative, supported by the Global Lake Ecological Monitoring Network (GLEON). The accompanying dataset provides an overview of the dry inland water bodies investigated to assess the influence of vegetation on CO2 emissions from dry beds. The study includes 164 inland water bodies, encompassing lakes, ponds, reservoirs, streams, and wetlands across a broad range of climatic regions, including tropical, arid, temperate, boreal, and polar zones. The dataset includes both in situ variables (e.g., sediment temperature, vegetation cover, mean annual temperature, and precipitation) and ex situ variables (e.g., sediment moisture, pH, electrical conductivity, and sediment texture). Additional metadata include the sampling country, water body type, weather conditions during sampling, dry-regime classification (chronically dry, ephemeral dry, intermittently dry, or temporarily dry), and the type of device used for CO2 measurements. Note: For questions or clarifications, please contact the corresponding authors. If this protocol or dataset is used for research purposes, please cite the dataset using the DOI provided by Zenodo.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.