Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13902 |
CO2 evasion from boreal lakes: Revised estimate, drivers of spatial variability, and future projections | |
Hastie, Adam1; Lauerwald, Ronny1,2; Weyhenmeyer, Gesa3; Sobek, Sebastian3; Verpoorter, Charles3,4; Regnier, Pierre1 | |
2018-02-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:2页码:711-728 |
文章类型 | Article |
语种 | 英语 |
国家 | Belgium; England; Sweden; France |
英文摘要 | Lakes (including reservoirs) are an important component of the global carbon (C) cycle, as acknowledged by the fifth assessment report of the IPCC. In the context of lakes, the boreal region is disproportionately important contributing to 27% of the worldwide lake area, despite representing just 14% of global land surface area. In this study, we used a statistical approach to derive a prediction equationfor the partial pressure of CO2 (pCO(2)) in lakes as a function of lake area, terrestrial net primary productivity (NPP), and precipitation (r(2)=.56), and to create the first high-resolution, circumboreal map (0.5 degrees) of lake pCO(2). The map of pCO(2) was combined with lake area from the recently published GLOWABO database and three different estimates of the gas transfer velocity k to produce a resulting map of CO2 evasion (FCO2). For the boreal region, we estimate an average, lake area weighted, pCO(2) of 966 (678-1,325) atm and a total FCO2 of 189 (74-347) Tg C year(-1), and evaluate the corresponding uncertainties based on Monte Carlo simulation. Our estimate of FCO2 is approximately twofold greater than previous estimates, as a result of methodological and data source differences. We use our results along with published estimates of the other C fluxes through inland waters to derive a C budget for the boreal region, and find that FCO2 from lakes is the most significant flux of the land-ocean aquatic continuum, and of a similar magnitude as emissions from forest fires. Using the model and applying it to spatially resolved projections of terrestrial NPP and precipitation while keeping everything else constant, we predict a 107% increase in boreal lake FCO2 under emission scenario RCP8.5 by 2100. Our projections are largely driven by increases in terrestrial NPP over the same period, showing the very close connection between the terrestrial and aquatic C cycle. |
英文关键词 | boreal carbon budget climate change CO2 future projections lake precipitation terrestrial NPP |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423994700043 |
WOS关键词 | CARBON-DIOXIDE SUPERSATURATION ; DISSOLVED ORGANIC-CARBON ; NORTH TEMPERATE ; SURFACE WATERS ; PATTERNS ; CLIMATE ; PCO(2) ; LAND ; EMISSIONS ; FLUXES |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17519 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Libre Bruxelles, Dept Geosci Environm & Soc, Biogeochem & Earth Syst Modelling, Brussels, Belgium; 2.Univ Exeter, Coll Engn Math & Phys Sci, Exeter, Devon, England; 3.Uppsala Univ, Dept Ecol & Genet Limnol, Uppsala, Sweden; 4.Univ Lille, Univ Littoral Cole Opale, CNRS, LOG,UMR 8187, Wimereux, France |
推荐引用方式 GB/T 7714 | Hastie, Adam,Lauerwald, Ronny,Weyhenmeyer, Gesa,et al. CO2 evasion from boreal lakes: Revised estimate, drivers of spatial variability, and future projections[J]. GLOBAL CHANGE BIOLOGY,2018,24(2):711-728. |
APA | Hastie, Adam,Lauerwald, Ronny,Weyhenmeyer, Gesa,Sobek, Sebastian,Verpoorter, Charles,&Regnier, Pierre.(2018).CO2 evasion from boreal lakes: Revised estimate, drivers of spatial variability, and future projections.GLOBAL CHANGE BIOLOGY,24(2),711-728. |
MLA | Hastie, Adam,et al."CO2 evasion from boreal lakes: Revised estimate, drivers of spatial variability, and future projections".GLOBAL CHANGE BIOLOGY 24.2(2018):711-728. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论