Applicability of rare earth element oxides as a sediment tracer for coarse-textured soils

被引:49
作者
Kimoto, A
Nearing, MA
Zhang, XC
Powell, DM
机构
[1] USDA, ARS, SW Watershed Res Ctr, Tucson, AZ 85719 USA
[2] USDA ARS, Grazinglands Res Lab, El Reno, OK 73036 USA
[3] Univ Leicester, Leicester LE1 7RH, Leics, England
关键词
rare earth element oxides; coarse-textured soils; soil erosion; estimation of soil loss; non-uniform binding of the REE oxides; particle size groups;
D O I
10.1016/j.catena.2005.10.002
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A leaching experiment using a mixture of five REE oxides and gravelly, sandy loam soils was conducted to examine the applicability of the REE oxides as a sediment tracer for coarse-textured soils. The experiment showed little leaching of the oxides and an enrichment of various size classes of soil particles with the oxides, which reflected the strong binding capability of the REE oxides with the gravelly, sandy loam soils. It also showed that the REE oxides preferentially bound with small size classes of soil particles. The preferential binding of the REE oxides with fine materials will cause the overestimation of the soil loss from a given area (i.e., tagged with a given REE) if aggregates are broken down during sediment transport and clay materials are preferentially delivered, and if the soil loss is computed by analyzing the REE concentrations in the whole sediment. To address the non-uniform binding issue, the method based on measuring the REE concentrations for four particle size groups was tested. The potential error of the method was evaluated by comparing the soil loss that would be computed in the case that the particle size distribution was shifted to the smallest particle size class within a particle size group and in the case that no sediment sorting occurred. The result showed that the method would produce a potential error of approximately 4% in the estimation of the total soil loss when sediment sorting occurred. The non-uniform binding of the oxides does not preclude the use of the REE oxides on the coarse-textured soils in the presence of non-uniform binding of the oxides, but adjustments in the technique are required for an accurate estimation of soil loss using the REE technique. (c) 2005 Elsevier B.V. All rights reserved.
引用
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页码:214 / 221
页数:8
相关论文
共 17 条
[1]  
[Anonymous], 1995, TEST METHODS EVALUAT, V3rd
[2]   Interpreting particle size effects in the adsorption of Cs-137 and unsupported Pb-210 by mineral soils and sediments [J].
He, Q ;
Walling, DE .
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 1996, 30 (02) :117-137
[3]   Stable rare earth element tracers to evaluate soil erosion [J].
Liu, PL ;
Tian, JL ;
Zhou, PH ;
Yang, MY ;
Shi, H .
SOIL & TILLAGE RESEARCH, 2004, 76 (02) :147-155
[4]   PHYSICOCHEMICAL CONTROLS ON ARTIFICIAL RADIONUCLIDES IN SOIL [J].
LIVENS, FR ;
RIMMER, DL .
SOIL USE AND MANAGEMENT, 1988, 4 (03) :63-69
[5]   Estimating erosion rates on sloping agricultural land in the Yangtze Three Gorges, China, from caesium-137 measurements [J].
Lu, XX ;
Higgitt, DL .
CATENA, 2000, 39 (01) :33-51
[6]   Lanthanide-labeled clay: A new method for tracing sediment transport in karst [J].
Mahler, BJ ;
Bennett, PC ;
Zimmerman, M .
GROUND WATER, 1998, 36 (05) :835-843
[7]   Transport of rare earth element-tagged soil particles in response to thunderstorm runoff [J].
Matisoff, G ;
Ketterer, ME ;
Wilson, CG ;
Layman, R ;
Whiting, PJ .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2001, 35 (16) :3356-3362
[8]   Tracking sediment redistribution in a small watershed: Implications for agro-landscape evolution [J].
Polyakov, VO ;
Nearing, MA ;
Shipitalo, MJ .
EARTH SURFACE PROCESSES AND LANDFORMS, 2004, 29 (10) :1275-1291
[9]   Rare earth element oxides for tracing sediment movement [J].
Polyakov, VO ;
Nearing, MA .
CATENA, 2004, 55 (03) :255-276
[10]   Rates and patterns of tillage and water erosion on terraces and contour strips: evidence from caesium-137 measurements [J].
Quine, TA ;
Walling, DE ;
Chakela, QK ;
Mandiringana, OT ;
Zhang, X .
CATENA, 1999, 36 (1-2) :115-142