Summary: SSSAJ: Volume 71: Number 2 · MarchApril 2007 545
Soil Sci. Soc. Am. J. 71:545-550
Received 29 Mar. 2006.
*Corresponding author (email@example.com).
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Estimates of SOC often are needed for applications in ecol-
ogy, soil science, and global climate change. Many meth-
ods are available for measuring SOC, each with advantages and
disadvantages in terms of accuracy, expense, and convenience
(Nelson and Sommers, 1996). For example, elemental C ana-
lyzers are accurate, but they may be expensive to purchase,
operate, and maintain. In comparison, the WalkleyBlack pro-