globalchange  > 全球变化的国际研究计划
DOI: 10.1029/2019GL083424
WOS记录号: WOS:000483812500030
论文题名:
Alpine Glacier Shrinkage Drives Shift in Dissolved Organic Carbon Export From Quasi-Chemostasis to Transport Limitation
作者: Canadell, Marta Boix1; Escoffier, Nicolas1,2; Ulseth, Amber J.1,3; Lane, Stuart N.2; Battin, Tom J.1
通讯作者: Battin, Tom J.
刊名: GEOPHYSICAL RESEARCH LETTERS
ISSN: 0094-8276
EISSN: 1944-8007
出版年: 2019
卷: 46, 期:15, 页码:8872-8881
语种: 英语
WOS关键词: DOM FLUORESCENCE ; MATTER ; CLIMATE ; CATCHMENT ; NUTRIENTS ; FLUXES ; WATER ; RIVER ; FLOW ; TEMPERATURE
WOS学科分类: Geosciences, Multidisciplinary
WOS研究方向: Geology
英文摘要:

The export of dissolved organic carbon (DOC) from catchments is considered as an important energy flux through streams and a major connection between terrestrial and aquatic systems. However, the impact that predicted hydrological changes due to glacier retreat and reduction in snow cover changes will have on DOC export from high-mountain streams remains unclear. In this study, we measured daily runoff and DOC yield during 1 year in Alpine streams draining catchments with different levels of glacier coverage. DOC yield showed a varied response to runoff across the catchments and varied seasonally as a function of the degree of glaciation and vegetation cover. Using space-for-time substitution, our results indicate that the controls on DOC yield from Alpine catchments change from chemostasis to transport limitation as glaciers shrink.


Plain Language Summary: Mountain glaciers are shrinking owing to climate change. Despite this unprecedented environmental change, the consequences for downstream biogeochemistry are poorly understood at present. We measured every 10 min during 1 year the concentration of dissolved organic carbon and discharge in 12 high-alpine streams under various influences of shrinking glaciers. Our data suggest that the drivers of the export of dissolved organic carbon from the catchments shift from chemostasis to hydrological transport limitation as glaciers shrink. This finding is critical to better understand the carbon balance at catchment scale in the future of mountains without glaciers.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/145556
Appears in Collections:全球变化的国际研究计划

Files in This Item:

There are no files associated with this item.


作者单位: 1.Ecole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn, Stream Biofilm & Ecosyst Res Lab, Lausanne, Switzerland
2.Univ Lausanne, Inst Earth Surface Dynam IDYST, Lausanne, Switzerland
3.Sam Houston State Univ, Dept Biol Sci, Huntsville, TX 77340 USA

Recommended Citation:
Canadell, Marta Boix,Escoffier, Nicolas,Ulseth, Amber J.,et al. Alpine Glacier Shrinkage Drives Shift in Dissolved Organic Carbon Export From Quasi-Chemostasis to Transport Limitation[J]. GEOPHYSICAL RESEARCH LETTERS,2019-01-01,46(15):8872-8881
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Canadell, Marta Boix]'s Articles
[Escoffier, Nicolas]'s Articles
[Ulseth, Amber J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Canadell, Marta Boix]'s Articles
[Escoffier, Nicolas]'s Articles
[Ulseth, Amber J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Canadell, Marta Boix]‘s Articles
[Escoffier, Nicolas]‘s Articles
[Ulseth, Amber J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.