干旱区生态环境知识资源中心(Arid): On the development of a magnetic susceptibility-based tracer for aeolian sediment transport research

Arid

DOI	10.1002/esp.4536
	On the development of a magnetic susceptibility-based tracer for aeolian sediment transport research
	Ravi, Sujith 1; Gonzales, Howell B.1; Buynevich, Ilya V.1; Li, Junran 2; Sankey, Joel B.3; Dukes, David 1; Wang, Guan 2
通讯作者	Ravi, Sujith
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2019
卷号	44 期号:2 页码:672-678
英文摘要	Aeolian processes - the erosion, transport, and deposition of sediment by wind - play important geomorphological and ecological roles in drylands. These processes are known to impact the spatial patterns of soil, nutrients, plant-available water, and vegetation in many dryland ecosystems. Tracers, such as rare earth elements and stable isotopes have been successfully used to quantify the transport and redistribution of sediment by aeolian processes in these ecosystems. However, many of the existing tracer techniques are labor-intensive and cost-prohibitive, and hence simpler alternative approaches are needed to track aeolian redistribution of sediments. To address this methodological gap, we test the applicability of a novel metal tracer-based methodology for estimating post-fire aeolian sediment redistribution, using spatio-temporal measurements of low-field magnetic susceptibility (MS). We applied magnetic metal tracers on soil microsites beneath shrub vegetation in recently burned and in control treatments in a heterogeneous landscape in the Chihuahuan desert (New Mexico, USA). Our results indicate a spatially homogeneous distribution of the magnetic tracers on the landscape after post-burn wind erosion events. MS decreased after wind erosion events on the burned shrub microsites, indicating that these areas functioned as sediment sources following the wildfire, whereas they are known to be sediment sinks in the undisturbed (e.g. not recently burned) ecosystem. This experiment represents the first step toward the development of a cost-effective and non-destructive tracer-based approach to estimate the transport and redistribution of sediment by aeolian processes. (c) 2018 John Wiley & Sons, Ltd.
英文关键词	sediment tracers magnetic susceptibility wind erosion aeolian processes
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000458932500020
WOS关键词	WIND EROSION ; CHIHUAHUAN DESERT ; SAGEBRUSH STEPPE ; FIRE ; GRASSLAND ; VEGETATION ; HEAVY ; PM10 ; POLLUTION ; WILDFIRE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215085
作者单位	1.Temple Univ, Dept Earth & Environm Sci, 1901 N 13th St, Philadelphia, PA 19122 USA; 2.Univ Tulsa, Dept Geosci, Tulsa, OK 74104 USA; 3.US Geol Survey, Southwest Biol Sci Ctr, Grand Canyon Monitoring & Res Ctr, Flagstaff, AZ 86001 USA
推荐引用方式 GB/T 7714	Ravi, Sujith,Gonzales, Howell B.,Buynevich, Ilya V.,et al. On the development of a magnetic susceptibility-based tracer for aeolian sediment transport research[J]. United States Geological Survey,2019,44(2):672-678.
APA	Ravi, Sujith.,Gonzales, Howell B..,Buynevich, Ilya V..,Li, Junran.,Sankey, Joel B..,...&Wang, Guan.(2019).On the development of a magnetic susceptibility-based tracer for aeolian sediment transport research.EARTH SURFACE PROCESSES AND LANDFORMS,44(2),672-678.
MLA	Ravi, Sujith,et al."On the development of a magnetic susceptibility-based tracer for aeolian sediment transport research".EARTH SURFACE PROCESSES AND LANDFORMS 44.2(2019):672-678.