Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3402/polar.v30i0.14555 |
Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert | |
Ball, Becky A.1,2; Barrett, J. E.3; Gooseff, Mike N.4; Virginia, Ross A.2; Wall, Diana H.5,6 | |
通讯作者 | Ball, Becky A. |
来源期刊 | POLAR RESEARCH
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ISSN | 0800-0395 |
EISSN | 1751-8369 |
出版年 | 2011 |
卷号 | 30 |
英文摘要 | The McMurdo Dry Valleys are one of the most arid environments on Earth. Over the soil landscape for the majority of the year, biological and ecosystem processes in the dry valleys are constrained by the low temperatures and limited availability of water. The prevalence of these physical limitations in controlling biological and ecosystem processes makes the dry valleys a climate-sensitive system, poised to experience substantial changes following projected future warming. Short-duration increases in summer temperatures are associated with pulses of water from melting ice reserves, including glaciers, snow and permafrost. Such pulses alter soil geochemistry by mobilizing and redistributing soil salts (via enhanced weathering, solubility and mobility), which can alter habitat suitability for soil organisms. Resulting changes in soil community composition or distribution may alter the biogeochemical processes in which they take part. Here, we review the potential impacts of meltwater pulses and present new field data documenting instances of meltwater pulse events that result from different water sources and hydrological patterns, and discuss their potential influence on soil biology and biogeochemistry. We use these examples to discuss the potential impacts of future climate change on the McMurdo Dry Valley soil ecosystem. |
英文关键词 | Water pulse climate change polar desert International Polar Year discrete warming events soil biogeochemistry |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000312499600001 |
WOS关键词 | MCMURDO DRY VALLEYS ; SCOTTNEMA-LINDSAYAE NEMATODA ; TAYLOR VALLEY ; COMMUNITY STRUCTURE ; BIOTIC INTERACTIONS ; ANTARCTIC SOILS ; CLIMATE-CHANGE ; TERRESTRIAL ; ECOSYSTEM ; BIODIVERSITY |
WOS类目 | Ecology ; Geosciences, Multidisciplinary ; Oceanography |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Oceanography |
来源机构 | Colorado State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/170111 |
作者单位 | 1.Arizona State Univ, Div Math & Nat Sci, Glendale, AZ 85306 USA; 2.Dartmouth Coll, Environm Studies Program, Hanover, NH 03755 USA; 3.Virginia Polytech Inst & State Univ, Dept Biol Sci, Blacksburg, VA 24061 USA; 4.Penn State Univ, Dept Civil & Environm Engn, University Pk, PA 16802 USA; 5.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA; 6.Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Ball, Becky A.,Barrett, J. E.,Gooseff, Mike N.,et al. Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert[J]. Colorado State University,2011,30. |
APA | Ball, Becky A.,Barrett, J. E.,Gooseff, Mike N.,Virginia, Ross A.,&Wall, Diana H..(2011).Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert.POLAR RESEARCH,30. |
MLA | Ball, Becky A.,et al."Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert".POLAR RESEARCH 30(2011). |
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