Rising methane emissions from boreal lakes due to increasing ice-free days
Bibliographic Data
| ID | 15548668 |
|---|---|
| Authors | Mingyang Guo (0000-0002-3087-453X, Purdue University West Lafayette), Qianlai Zhuang (0000-0002-4536-9851, Purdue University West Lafayette, corresponding author), Zeli Tan (0000-0001-5958-2584, Pacific Northwest National Laboratory), Narasinha Shurpali (0000-0003-1052-4396, University of Eastern Finland), Sari Juutinen (0000-0002-7752-1950, University of Helsinki), Pirkko Kortelainen (0000-0002-1448-0688, Finnish Environment Institute), Pertti J Martikainen (0000-0003-0415-8449, University of Eastern Finland) |
| Year | 2020 |
| Volume | 15 |
| Issue | 6 |
| Pages | 064008-064008 |
| Publication date | 2020-03-23 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/ab8254 |
| OpenAlex | W3012808107 |
| Language | EN |
| Citations received | 2 |
| References cited | 50 |
Lakes account for about 10% of the boreal landscape and are responsible for approximately 30% of biogenic methane emissions that have been found to increase under changing climate. However, the quantification of this climate-sensitive methane source is fraught with large uncertainty under warming climate conditions. Only a few studies have addressed the mechanism of climate impact on the increase of northern lake methane emissions. This study uses a large observational dataset of lake methane concentrations in Finland to constrain methane emissions with an extant process-based lake biogeochemical model. We found that the total current diffusive emission from Finnish lakes is 0.12 ± 0.03 Tg CH 4 yr −1 and will increase by 26%–59% by the end of this century depending on different warming scenarios. We discover that while warming lake water and sediment temperature plays an important role, the climate impact on ice-on periods is a key indicator of future emissions. We conclude that these boreal lakes remain a significant methane source under the warming climate within this century
Atmospheric sciences · Biogeochemical cycle · Boreal · Climate change · Climatology · Global warming · Greenhouse gas · Methane · Arctic and Antarctic ice dynamics · Atmospheric and Environmental Gas Dynamics · Chemistry · Climate change and permafrost · Environmental Science · Ecology · Environmental Chemistry · Geology · Oceanography
| Citations per year | 0.33 |
|---|---|
| Citation span | 2020 - 2024 (5) |
| Highly cited | No |