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Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools
JoVE 신문
환경과학
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JoVE 신문 환경과학
Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools
DOI:

09:19 min

December 16, 2022

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Chapters

  • 00:04Introduction
  • 01:04Dissolution of Soil in Sodium Polytungstate (SPT)
  • 02:04Performing Coarse Soil Fractionation
  • 04:40Washing and Collection of the Heavy-Fraction Material
  • 05:46Washing, Collection, and Weighing of the Light-Fraction Material
  • 06:49Results: Analyzing Soil Carbon Pools After Soil Density Fractionation
  • 08:20Conclusion

Summary

자동 번역

Soil density fractionation separates soil organic matter into distinct pools with differing stabilization mechanisms, chemistries, and turnover times. Sodium polytungstate solutions with specific densities allow the separation of free particulate organic matter and mineral-associated organic matter, resulting in organic matter fractions suitable for describing the soil response to management and climate change.

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