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土壤联合粒径与密度的分离研究

JoVE Journal
Ambiente

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JoVE Journal Ambiente

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

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土壤联合粒径与密度的分离研究

DOI:

10.3791/58927-v

•

08:38 min

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February 15, 2019

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Fanny Viret, Stephanie Grand

¹Faculty of Geosciences and Environment,University of Lausanne

Capitoli

00:04Titolo
00:38Light Fraction (LF) Separation
04:13Separation of the hFs According to Particle Size
04:54Separation of the Two Size Fractions According to Density
06:31Results: Distribution of Materials Between Fractions as a Function of Soil Mineralogy for Two Horizons at Three Sites
07:37Conclusion

Summary

Traduzione automatica

结合大小和密度分馏 (csdf) 是一种将土壤物理分离为纹理 (粒径) 和矿物学 (密度) 不同的分数的方法。目的是分离对土壤有机质 (som) 进行不同反应的分数, 以便更好地了解有机矿物相互作用和 som 动力学。

Tags

Keywords: Organo-mineral Interactions Soil Organic Matter Physical Fractionation Carbon Sequestration Sodium Polytungstate Centrifugation Vacuum Ultrafiltration Free Light Fraction

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