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Soil Organic Matter and Soil Productivity: Searching for the Missing Link

  • Felipe G. Sanchez
Part of the Ecological Studies book series (ECOLSTUD, volume 128)

Abstract

Soil-organic matter (SOM) is a complex array of components including soil faun and flora at different stages of decomposition (Berg et al., 1982). Its concentration in soils can vary from 0.5% in mineral soils to almost 100% in peat soils (Brady 1974). Organic matter (OM) in the surfa\(\tilde{\text c}\)e mineral soil is considered a majo determinant of forest ecosystem productivity because it affects water retention soil structure, and nutrient cycling (Powers et al., 1990; Paul 1991). Soil-organi matter is the major source of nitrogen available to plants and contains as much as 65% of the total soil phosphorus (Bauer and Black, 1994).

Keywords

Soil Organic Matter Fine Root Fulvic Acid Dissolve Organic Matter Supercritical Fluid Extraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer-Verlag New York, Inc. 1998

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  • Felipe G. Sanchez

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