Application of sediment tracers to discriminate sediment sources following wildfire

被引：0

作者：

Smith, Hugh G. ^{[1
]}

Blake, William H. ^{[1
]}

Owens, Philip N. ^{[2
]}

机构：

[1] Univ Plymouth, Sch Geog Earth & Environm Sci, Plymouth PL4 8AA, Devon, England

[2] Univ British Columbia, Environm Sci Program & Quesnel River Res Ctr, Prince George, BC V2N 4Z9, Canada

来源：

WILDFIRE AND WATER QUALITY: PROCESSES, IMPACTS AND CHALLENGES | 2012年 / 354卷

关键词：

wildfire; sediment tracing; sediment sources; fallout radionuclides; river basins; TRACING SUSPENDED SEDIMENT; ENVIRONMENTAL MAGNETISM; FALLOUT CS-137; FOREST SOILS; FIRE; REDISTRIBUTION; CATCHMENTS; RIVER; TRANSPORT; EROSION;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Wildfire can cause the main sources of fine sediment transported within burned basins to change. Sediment tracing techniques offer an approach to quantify this sediment source response to burning. In this paper, we review the application of various sediment tracers to discriminate sediment sources following wildfire. This includes studies examining changes in fallout radionuclide, geochemical and mineral magnetic properties of burned soil to identify possible fire-related effects on tracer properties and behaviour. Previous work suggests that fallout radionuclides (Cs-137, excess Pb-210, Be-7, (PU)-P-239,240) may provide the most effective tracers for post-fire sediment source and budgeting studies. Other tracer properties seem to be overly susceptible to burn effects and might provide a less consistent basis for post-fire source discrimination. The final selection of tracer properties for use in sediment tracing applications should reflect the likely controls of individual tracer concentrations in different sources and their potential response to burning.

引用

页码：81 / +

页数：3

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