气候变化领域集成服务门户(CCPortal): Greenhouse gas emissions from urban ponds in Denmark

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DOI	10.1080/20442041.2020.1730680
	Greenhouse gas emissions from urban ponds in Denmark
	Audet J.; Carstensen M.V.; Hoffmann C.C.; Lavaux L.; Thiemer K.; Davidson T.A.
发表日期	2020
ISSN	20442041
起始页码	373
结束页码	385
卷号	10 期号:3
英文摘要	Ponds are increasingly recognized as significant sources of greenhouse gases (GHGs) emitted to the atmosphere. Concomitant with increasing urbanization, more urban ponds are created, many with the aim of buffering peak runoff and improving water quality in downstream waterbodies. However, the impact of urban ponds on GHG emissions is poorly elucidated. In this study, we measured the dissolved concentrations of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) 4 times over a year in 37 ponds located in the city of Silkeborg, Denmark. The results show that the ponds generally acted as a source of GHG with CO2-C concentrations (standard deviation) of 1938 (2208) µg L−1, CH4-C of 44 (198) µg L−1, and N2O-N of 0.8 (1.8) µg L−1. Boosted regression tree models show that vegetation cover, water temperature, and nitrate concentration were the main drivers of CO2, CH4, and N2O concentrations, respectively. Upscaling of the results to the Danish national level showed that urban ponds emit about 38 × 109 g CO2-equivalents per year, suggesting that urban ponds are significant sources of GHG in urban landscapes. © 2020 International Society of Limnology (SIL).
英文关键词	carbon dioxide; greenhouse gas; methane; nitrous oxide; ponds; stormwater
来源期刊	Inland Waters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176867
作者单位	Department of Bioscience, Aarhus University, Silkeborg, Denmark; Norwegian Institute for Water Research (NIVA), Oslo, Norway
推荐引用方式 GB/T 7714	Audet J.,Carstensen M.V.,Hoffmann C.C.,et al. Greenhouse gas emissions from urban ponds in Denmark[J],2020,10(3).
APA	Audet J.,Carstensen M.V.,Hoffmann C.C.,Lavaux L.,Thiemer K.,&Davidson T.A..(2020).Greenhouse gas emissions from urban ponds in Denmark.Inland Waters,10(3).
MLA	Audet J.,et al."Greenhouse gas emissions from urban ponds in Denmark".Inland Waters 10.3(2020).