SoS DISCUSSION LIST - Reinken, Kale and Fuehr

Distribution pattern of organic carbon in soils and its role in preferential movement of brilliant blue in a structured silty soil

Gerald Reinken, Sharad P. Kale and Fritz Fuehr

This Discussion List started on September 20 1996
Last contribution Sat Sep 27 14:33:30 GMT 1997

Charles San Juan, csan461@ecy.wa.gov Washington Department of Ecology, USA
wrote on Mon September 08 1997, 17:13:53 (local day time):

I've found that below the root zone, soil organic matter (SOM) will probably decrease to less than 0.2%. This is important for fate / transport assessments of soil contaminants leaching to ground water. The analytical methods that are used to measure SOM can also be very important. For example, soil with high inorganic carbon may need more complete digestion (by HCL or other methods).

Sharad P. Kale (One of the Authors), nad@magnum.barc.ernet.in Bhabha Atomic Research Centre, Mumbai, India, INDIA
wrote on Sat September 27 1997, 07:33:30 (local day time):

In clay soils or silty clay soils, organic carbon can be between 0,5-1,2% below root zone especially in those soils in which top layers are showing this % about 1.4-1,8%. This was also evident in our experiment. In silty soil, there is no drastic reduction in % OC while in sandy soil, that is the case. Regarding the methodology, the digestion was done with conc. sulfuric acid (in excess).

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