Washing and Collection of the Heavy-Fraction Material
5:46
Washing, Collection, and Weighing of the Light-Fraction Material
6:49
Results: Analyzing Soil Carbon Pools After Soil Density Fractionation
8:20
Conclusion
副本
This method allows researchers to isolate a small number of functional pools of soil carbon into measurable and modelable fractions as part of soil carbon stabilization research. This technique is simple to perform, allows for greater reproducibil
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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.
