Feasibility of magnetite powder as an erosion tracer for main soils across China

Feasibility of magnetite powder as an erosion tracer for main soils across China
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磁铁矿粉作为中国主要土壤侵蚀示踪剂的可行性

DOI:
10.1007/s11368-020-02574-7
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发表时间:
2020-02
影响因子:
3.6
通讯作者:
Huang Mingbin
Huang Mingbin
中科院分区:
农林科学3区
文献类型:
--
作者:
Liu Liang;Liu Hongyuan;Fu Suhua;Zhang Keli;Wen Meili;Yu Yue;Huang Mingbin

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目的:本研究旨在探讨磁铁矿粉作为侵蚀示踪剂用于中国全国范围土壤侵蚀监测的潜在可行性。材料和方法:本研究评估了粉粒大小的磁铁矿粉(磁侵蚀示踪剂)在中国四种具有不同质地(从砂壤土到粉质粘土)的代表性侵蚀土壤中的有效性。根据干骨料分析,不同磁性示踪剂标记的骨料尺寸范围(> 0.05 mm)的 χlf 值相似。结果与讨论:模拟长期淋洗试验表明示踪剂在土壤剖面中的迁移率较低。在地表流冲刷条件下示踪剂与测试土壤的同时分离表明示踪剂与不同土壤表现出良好的结合能力。结论:这些结果表明磁铁矿粉适合中国的侵蚀监测。这种方法可能会推广到世界其他地区。
Purpose: This study aimed to explore the potential feasibility of magnetite powder as an erosion tracer for national-scale soil erosion monitoring in China..Materials and methods: This study evaluated the effectiveness of silt-sized magnetite powder, a magnetic erosion tracer, in four representative erodible soils in China with distinct textures (from sandy loam to silty clay). The χlf values of different magnetic tracer-tagged aggregate size ranges (> 0.05 mm) were similar based on dry aggregate analysis..Results and discussion: Simulated long-term leaching tests showed that the tracer had low mobility in soil profiles. The simultaneous separation of the tracer and tested soils under surface flow scouring conditions indicates that the tracer exhibited good bonding ability with different soils..Conclusions: These findings indicate that magnetite powder is suitable for erosion monitoring in China. This method may be extended to other regions over the world.
DOI: 10.1016/s0341-8162(00)00149-1
发表时间: 2001-05
期刊: Catena
影响因子: 6.2
作者:
E. Ventura;M. Nearing;L.Darrell Norton
通讯作者: E. Ventura;M. Nearing;L.Darrell Norton
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