Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 551058
Title Seasonal and diel variation in greenhouse gas emissions from an urban pond and its major drivers
Author(s) Bergen, Tamara van; Barros, Nathan O.; Mendonça, Raquel; Aben, Ralf; Althuizen, Inge H.J.; Moraes Huszar, Vera Lúcia de; Lamers, Leon P.M.; Lurling, M.F.L.L.W.; Roland, Fabio; Kosten, Sarian
Source Limnology and Oceanography 64 (2019)5. - ISSN 0024-3590 - p. 2129 - 2139.
Department(s) WIMEK
Aquatic Ecology and Water Quality Management
Publication type Refereed Article in a scientific journal
Publication year 2019
Abstract Small water systems are important hotspots of greenhouse gas (GHG) emission, but estimates are poorly constrained as data are scarce. Small ponds are often constructed in urban areas, where they receive large amounts
of nutrients and therefore tend to be highly productive. Here, we investigated GHG emissions, seasonal and diel
variation, and net ecosystem production (NEP) from an urban pond. In monthly 24-h field campaigns during
11 months, diffusive water–atmosphere methane (CH4) and carbon dioxide (CO2) fluxes and CH4 ebullition
and oxidation were quantified. With oxygen (O2) measurements, NEP was assessed. The pond was a net GHG
source the entire year, with an emission of 3.4 kg CO2 eq m−2 yr−1
. The dominant GHG emission pathway was
CH4 ebullition (bubble flux, 50%), followed by diffusive emissions of CO2 (38%) and CH4 (12%). Sediment CH4
release was primarily driven by temperature and especially ebullition increased exponentially above a temperature threshold of 15C. The pond’s atmospheric CO2 exchange was not related to NEP or temperature but likely
to a high allochthonous carbon (C) input via runoff and anaerobic mineralization of C. We expect urban ponds
to show a large increase in GHG emission with increasing temperature, which should be considered carefully
when constructing ponds in urban areas. Emissions may partly be counteracted by pond management focusing
on a reduction of nutrient and organic matter input.
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