Quantitative Transformation Pathways of Soil Aggregate Breakdown Using Rare Earth Element (REE) Tracer Method

ZHANG Wenlong; WANG Bin; WANG Yunqi; WANG Yujie; WANG Chenfeng; LIANG Chunlin and JIANG Chunxiao

doi:10.13870/j.cnki.stbcxb.2020.01.023

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Quantitative Transformation Pathways of Soil Aggregate Breakdown Using Rare Earth Element (REE) Tracer Method

更新时间：2025-03-12

- Quantitative Transformation Pathways of Soil Aggregate Breakdown Using Rare Earth Element (REE) Tracer Method
- Vol. 34, Issue 1, Pages: 154-161(2020)
- 作者机构：
  
  1. 北京林业大学水土保持学院重庆三峡库区森林生态系统教育部野外科学观测研究站,北京,100083
  2. 北京林业大学水土保持学院重庆缙云山三峡库区森林生态系统国家定位观测研究站,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.01.023
  CLC： S157
- Published：2020
- 稿件说明：
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ZHANG Wenlong, WANG Bin, WANG Yunqi, et al. Quantitative Transformation Pathways of Soil Aggregate Breakdown Using Rare Earth Element (REE) Tracer Method[J]. 2020, 34(1): 154-161.
DOI：

ZHANG Wenlong, WANG Bin, WANG Yunqi, et al. Quantitative Transformation Pathways of Soil Aggregate Breakdown Using Rare Earth Element (REE) Tracer Method[J]. 2020, 34(1): 154-161. DOI： 10.13870/j.cnki.stbcxb.2020.01.023.

摘要

土壤团聚体破碎转化路径是坡面侵蚀过程研究的难点问题之-。目前团聚体破碎转化路径的定量表征仍不明晰，-定程度上限制了土壤侵蚀过程中泥沙分选搬运机制的深入研究。基于大样带调查选取6种不同质地的典型农耕地土壤为研究对象，结合稀土元素（Rare Earth Elements，REE）示踪方法，综合分析不同粒径土壤团聚体（5~2，2~1，1~0.5，0.5~0.25，<0.25 mm）和不同径流扰动周期（24 h，7天）对REE吸附和解吸能力的影响，探究REE示踪不同粒径土壤团聚体破碎转化的可行性，定量表征了土壤团聚体破碎转化路径。结果表明：REE与土壤团聚体的实际吸附浓度低于施放浓度，2~1，1~0.5，0.5~0.25，<0.25 mm土壤团聚体的REE吸附浓度与黏粒含量呈显著正相关（P<0.05）；径流扰动影响对吸附于土壤团聚体的REE解吸作用十分微弱，解吸浓度仅占REE实际吸附浓度的0.001%~0.139%。5~2，2~1，1~0.5，05~0.25，<0.25 mm土壤团聚体经过湿筛后向各粒径转化的路径基本相同，向<0.25 mm微团聚体转化为土壤团聚体破碎的主要路径。相较于粉粒、黏粒含量较高的土壤团聚体，砂粒含量较高的土壤团聚体向1~0.5，0.5~0.25 mm粒径的转化贡献率整体偏低。基于REE示踪得到的>0.25 mm各粒径团聚体质量整体被低估，低估范围为-27.96%~-11.08%；而<0.25 mm团聚体质量则被高估，高估范围为3.65%~22.73%。基于各粒径土壤团聚体的REE量化值建立了校正关系，可将计算相对误差降低至0.04%~16.24%。

Abstract

Soil aggregation and transformation play an important role in soil erosion and vice versa. The quantifiably breakdown and transformation pathways of soil aggregate have not been clarified. The limitation hampers the in-depth study of sediment separation and transport mechanism of soil erosion processes. Recently

137Cs

210Pb

7Be and magnetite tracer methods have been widely applied to soil erosion research at slope and small watershed scales. However

those methods are not suitable for tracking multiple erosion processes simultaneously. Six typical agricultural soils with different texture from Loess Plateau and black soil region in China were selected in this study. Rare earth elements (REE) tracer method was applied to quantify the transformation pathways of five soil aggregate fractions (5~2

2~1

1~0.5

0.5~0.25

< 0.25 mm). The adsorption and desorption capacity of REE on different aggregates were analyzed with the simulated runoff disturbance cycles. Results showed that the actual adsorption concentration of REE and soil aggregates were lower than that of the application concentration. REE adsorption concentration of soil aggregates at 2~1

1~0.5

0.5~0.25 and < 0.25 mm were significantly positively correlated with the clay content (P<0.05). The effect of runoff disturbance on the desorption of REE adsorbed on soil aggregates was very weak

and the desorption concentration only accounted for 0.001%~0.139% of the actual adsorption concentration of REE. The transformation pathways among the 5~2

2~1

1~0.5

0.5~0.25 and < 0.25 mm soil aggregates fractions were basically the same

converting to < 0.25 mm microaggregates was the main pathway. The transformation rate of soil aggregates with high sand content to 1~0.5 and 0.5~0.25 mm fractions was generally lower

compared with soil aggregates with high content of silt and clay. The REE tracer method underestimated the labeled > 0.25 mm aggregates

which ranged from -27.96% to -11.08%. However

< 0.25 mm aggregates was overestimated by 3.65%~22.73%. Based on the REE quantification values of soil aggregates of various particle sizes

a correction relationship was established

which could reduce the calculated relative error to 0.04%~16.24%.

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references

Hu F N, Xu C Y, Li H, et al. Particles interaction forces and their effects on soil aggregates breakdown[J]. Soil and Tillage Research,2015,147(5):1-9.

Lu J, Zheng F L, Li G F, et al. The effects of raindrop impact and runoff detachment on hillslope soil erosion and soil aggregate loss in the Mollisol region of Northeast China[J]. Soil and Tillage Research,2016,161:79-85.

Leguedois S, Bissonnais Y L. Size fractions resulting from an aggregate stability test, interrill detachment and transport[J]. Earth Surface Processes and Landforms,2004,29(9):1117-1129.

Walling D E, Quine T A. Use of

137

Cs measurements to investigate soil erosion on arable fields in the UK:Potential applications and limitations[J]. European Journal of Soil Science,2010,42(1):147-165.

Gaspar L, Navas A, Machín J, et al. Using

210

measurements to quantify soil redistribution along two complex toposequences in Mediterranean agroecosystems, northern Spain[J]. Soil and Tillage Research,2013,130:81-90.

Walling D E. Beryllium-7:The Cinderella of fallout radionuclide sediment tracers?[J]. Hydrological Processes,2013,27(6):830-844.

Yu Y, Zhang K L, Liu L, et al. Estimating long-term erosion and sedimentation rate on farmland using magnetic susceptibility in northeast China[J]. Soil and Tillage Research,2019,187:41-49.

Zhang X C, Liu G, Zheng F L, et al. Understanding erosion processes using rare earth element tracers in a preformed interrill-rill system[J]. Science of The Total Environment,2018,625:920-927.

Zhang X C, Nearing M A, Garbrecht J D, et al. Gaining insights into interrill erosion processes using rare earth element tracers[J]. Geoderma,2017,299:63-72.

Zhang Q W, Lei T W, Huang X S, et al. Quantifying the sediment transport capacity in eroding rills using a REE tracing method[J]. Land Degradation & Development,2017,28(2):591-601.

Zhang X C, Friedrich J M, Nearing M A, et al. Potential use of rare earth oxides as traces for soil erosion and aggregation studies[J]. Soil Science Society of America Journal,2001,65(5):1508-1515.

肖海,刘刚,许文年,等.土壤颗粒组成对REE吸附量及侵蚀示踪精度的影响[J].中国稀土学报,2013,31(5):627-635.

Kimoto A, Nearing M A, Zhang X C, et al. Applicability of rare earth element oxides as a sediment tracer for coarse-textured soils[J]. Catena,2006,65:214-221.

Liu G, Xiao H, Liu P L, et al. An improved method for tracing soil erosion using rare earth elements[J]. Journal of Soils and Sediments,2016,16(5):1670-1679.

Zhang X C, Liu G, Zheng F L. A simple enrichment correction factor for improving erosion estimation by rare earth oxide Tracers[J]. Vadose Zone Journal,2017,16(12):e345.

Oades J M. The role of biology in the formation, stabilization and degradation of soil structure[J]. Geoderma,1993,56:377-400.

Six J, Bossuyt H, Degryze S, et al. A history of research on the link between (micro)aggregates, soil biota, and soil organic matter dynamics[J]. Soil and Tillage Research,2004,79(1):7-31.

Peng X H, Zhu Q H, Zhang Z B, et al. Combined turnover of carbon and soil aggregates using rare earth oxides and isotopically labelled carbon as tracers[J]. Soil Biology and Biochemistry,2017,109:81-94.

中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科技出版社,1978.

肖海.稀土元素定量监测坡面浅沟产生及发育过程[D].陕西杨凌:西北农林科技大学,2017.

刘普灵,田均良,周佩华,等.土壤侵蚀稀土元素示踪法实验研究[J].稀土,2001(2):37-40.

Song W, Liu P L, Yang M Y, et al. Using REE tracers to measure sheet erosion changing to rill erosion[J]. Journal of Rare Earths,2003,21(5):587-590.

Liu S, Guo Z C, Pan Y, et al. Rare earth oxides for labelling soil aggregate turnover: Impacts of soil properties, labelling method and aggregate structure[J]. Geoderma,2019,351:36-48.

Spencer K L, Suzuki K, Hillier S. The development of rare earth element-labelled potassium-depleted clays for use as cohesive sediment tracers in aquatic environments[J]. Journal of Soils and Sediments,2011,11(6):1052-1061.

耿韧,张光辉,洪大林,等.黄土高原农地草地林地土壤团聚体稳定性沿降水梯度的变化特征[J].农业工程学报,2019,35(3):141-148.

范云涛,雷廷武,蔡强国.湿润速度对土壤表面强度和土壤团聚体结构的影响[J].农业工程学报,2008,24(5):46-50.

邵明安,王全九,黄明斌,等.土壤物理学[M].北京:高等教育出版社,2006.

卢金伟,李占斌.土壤团聚体研究进展[J].水土保持研究,2002,9(1):81-85.

王清奎,汪思龙.土壤团聚体形成与稳定机制及影响因素[J].土壤通报,2005,36(3):415-421.

雷廷武,张晴雯,赵军.细沟水蚀动态过程的稳定性稀土元素示踪研究[J].水利学报,2004,35(12):84-91.

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