[1]ZHANG Jiaqiong,SHANG Yueting,BAI Ruru,et al.Application of Rare Earth Element Tracer in the Research of Soil Erosion and Sediment Source[J].Research of Soil and Water Conservation,2023,30(03):55-61.[doi:10.13869/j.cnki.rswc.2023.03.022]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 03
Page number:
55-61
Column:
Public date:
2023-04-10
- Title:
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Application of Rare Earth Element Tracer in the Research of Soil Erosion and Sediment Source
- Author(s):
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ZHANG Jiaqiong1,2, SHANG Yueting1, BAI Ruru1, YIN Minfeng1, DANG Zhen2,3, YANG Mingyi1,2, XIAO Hai4,5
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(1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Institute of Soil and Water Conservation,Northwest A&F University,Yangling,Shaanxi 712100,China;2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and ministry of Water Resources,Yangling,Shaanxi 712100,China;3.University of Chinese Academy of Sciences,Beijing 100864,China;4.Key Laboratory of Geological Hazards on Three Gorges Reservoir Area,ministry of Education,Yichang,Hubei 443002......)
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- Keywords:
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rare earth element tracing; soil erosion; sediment source; erosion tracing; particle size effect
- CLC:
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S157.1
- DOI:
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10.13869/j.cnki.rswc.2023.03.022
- Abstract:
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[Objective]Understanding the tracing approach of rare earth elements(REE)in soil erosion and sediment source identification, and clarifying their uncertainties are important to obtain robust quantification results of soil erosion and sediment source. [Methods] The soil erosion technical route using REE and its application progress in water and wind erosion quantification, and sediment source identification were summarized based on previous results, as well as the deficiencies of REE tracing. [Results] REEs are considered as the ideal elements used to trace soil erosion, however, there are still key aspects that affect the accuracy of erosion and sediment source estimation results from REE tracing, including the combination methods and mechanisms of REE to soil particles, REE transport through leaching and runoff and plant absorption and utilization in long term studies. Therefore, key aspects that researchers should focus on in the future were proposed. It is also urgent to clarify the impact of massively released REE on the health of soils, plants and environments. Additionally, sediment source identification combined with the optimal fingerprinting approach should be further explored. [Conclusion] The results of this study are valuable for improving the accuracy of the REE tracing technique, expanding application of REE tracing technique to other erosion types in addition to water erosion, and using REE tracing technique in combination with the composite fingerprinting approach to identify sediment source in relatively large areas.