Spatial and Temporal Variability of Methane Emissions and Environmental Conditions in a Hyper-Eutrophic Fishpond
| العنوان: | Spatial and Temporal Variability of Methane Emissions and Environmental Conditions in a Hyper-Eutrophic Fishpond |
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| المؤلفون: | Petr Znachor, Jiří Nedoma, Vojtech Kolar, Anna Matoušů |
| المصدر: | SSRN Electronic Journal. |
| بيانات النشر: | Elsevier BV, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | History, Polymers and Plastics, Business and International Management, Industrial and Manufacturing Engineering |
| الوصف: | Estimations of methane (CH4) emissions are often based on point measurements using either flux chambers or a transfer coefficient method which may lead to strong underestimation of the total CH4 fluxes. In order to demonstrate more precise measurements of the CH4 fluxes from an aquaculture pond, using higher resolution sampling approach we examined the spatiotemporal variability of CH4 concentration in the water, related fluxes (diffusive and ebullitive) and relevant environmental conditions (temperature, oxygen, chlorophyll-a) during three diurnal campaigns in a hyper-eutrophic fishpond. Our data show remarkable variance spanning several orders of magnitude while diffusive fluxes accounted for only a minor fraction of total CH4 fluxes (4.1–18.5 %). Linear mixed-effects models identified water depth as the only significant predictor of CH4 fluxes. Our findings necessitate complex sampling strategies involving temporal and spatial variability for reliable estimates of the role of fishponds in a global methane budget. |
| وصف الملف: | application/pdf |
| تدمد: | 1556-5068 1726-4189 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7cfcd14d381045f7b93c23c231f05a4 https://doi.org/10.2139/ssrn.4133429 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c7cfcd14d381045f7b93c23c231f05a4 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15565068 17264189 |
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