Greenhouse gas emissions from Baltic coastal lakes
نویسندگان
چکیده
Coastal lakes (CL) act as limnetic–?-oligohaline systems located on non-tidal coastlines in fresh and salt water mixing zone. Owing to considerable terrestrial nutrient input a high autochthonous productivity CLs release greenhouse gases (GHG) the ambient atmosphere, however, neither emission from system was assessed nor controls were recognized so far. In this study we attempted quantify diffusive emissions of CH4, CO2 N2O based data collected seven south coast Baltic Sea Poland. Lake samples with quarterly resolution along salinity, depth wind fetch gradients. From our it emerged that concentrations GHGs determined by temperature. CH4 showed dependence lake fetch. controlled dissolved O2 NO3? largely related It also appeared influenced input. The mean fluxes for whole 21.7 mg·m?2·d?1, 12.7 g·m?2·d?1 0.74 respectively which equivalent 7.9 g CH4·m?2·y?1, 4.6 kg CO2·m?2·y?1 269 mg N2O·m?2·y?1. released throughout year predominantly emitted during winter. We relationships surface area well ratio catchment (CA/LA). would benefit further extension higher analyses over longer timescales quantification ebullitive GHG (CH4 particular).
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ژورنال
عنوان ژورنال: Science of The Total Environment
سال: 2021
ISSN: ['0048-9697', '1879-1026']
DOI: https://doi.org/10.1016/j.scitotenv.2020.143500