Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.aeolia.2014.01.002 |
The characterization and role of aeolian deposition on water quality, McMurdo Dry Valleys, Antarctica | |
Deuerling, K. M.; Lyons, W. B.; Welch, S. A.; Welch, K. A. | |
通讯作者 | Deuerling, K. M. |
来源期刊 | AEOLIAN RESEARCH
![]() |
ISSN | 1875-9637 |
EISSN | 2212-1684 |
出版年 | 2014 |
卷号 | 13页码:7-17 |
英文摘要 | The connection of ecosystems by wind-driven transport of material has become a topic of increasing interest and importance. Less than 1% of dust transported worldwide is exported to the Southern Ocean and Antarctic cryosphere; however, aeolian transport on the Antarctic continent is predominantly locally derived from the abrasion of bedrock. The deposition of the aeolian material is integral to nutrient and solute dispersal in the Antarctic ecosystem. This is particularly true in the ice-free areas of Antarctica, such as the McMurdo Dry Valleys (MDV), where aeolian material deposited in the aquatic system is solubilized during the melt season. The material is predominantly locally-derived from the abrasion of bedrock. In this study, a two-step leaching experiment simulates the melt season and we quantify the flux of solutes and nutrients to the aquatic ecosystem. Soluble salts were removed from the aeolian material first during cold water leaching followed by an increase in carbonate and silicate dissolution during freezethaw. Major ion fluxes on glaciers and lakes are at least two orders of magnitude greater than nutrient fluxes. However, the fluxes derived from these experiments are less than the estimated flux from streams to lakes and probably represent minima. Aeolian redistribution of local soils is important because they are the only source of new solutes and nutrients to the aquatic ecosystem of the MDV. (C) 2014 Elsevier B.V. All rights reserved. |
英文关键词 | Aeolian transport Dust Cryosphere Antarctica Dissolution |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000338811900002 |
WOS关键词 | SOUTHERN VICTORIA LAND ; TAYLOR VALLEY ; POLAR-DESERT ; MELTWATER STREAMS ; EOLIAN SEDIMENT ; SAND TRANSPORT ; LAKE HOARE ; CLIMATE ; IRON ; EVOLUTION |
WOS类目 | Geography, Physical |
WOS研究方向 | Physical Geography |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/180424 |
作者单位 | Ohio State Univ, Byrd Polar Res Ctr, Columbus, OH 43210 USA |
推荐引用方式 GB/T 7714 | Deuerling, K. M.,Lyons, W. B.,Welch, S. A.,et al. The characterization and role of aeolian deposition on water quality, McMurdo Dry Valleys, Antarctica[J],2014,13:7-17. |
APA | Deuerling, K. M.,Lyons, W. B.,Welch, S. A.,&Welch, K. A..(2014).The characterization and role of aeolian deposition on water quality, McMurdo Dry Valleys, Antarctica.AEOLIAN RESEARCH,13,7-17. |
MLA | Deuerling, K. M.,et al."The characterization and role of aeolian deposition on water quality, McMurdo Dry Valleys, Antarctica".AEOLIAN RESEARCH 13(2014):7-17. |
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。