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Table 2 Total C, N content and C/N ratio in each particle-size fraction of soils collected from the O/A horizon at 3 topographic positions

From: Characterization of soil organic matter in perhumid natural cypress forest: comparison of humification in different particle-size fractions

Topographic position Particle-size (μm) TCa(%) TNb(%) C/N
Summit Coarse (>250) 44.4 1.1 39.0
  Medium (250 ~ 53) 43.8 1.5 29.5
  Fine (53 ~ 2) 44.7 2.0 21.9
  Very Fine (< 2) 46.9 2.4 19.6
Footslope Coarse (>250) 41.9 1.9 22.0
  Medium (250 ~ 53) 45.8 2.0 22.4
  Fine (53 ~ 2) 38.4 1.8 21.8
  Very Fine (< 2) 47.3 2.3 20.7
Lakeshore Coarse (>250) 42.0 1.5 27.7
  Medium (250 ~ 53) 47.0 1.7 28.1
  Fine (53 ~ 2) 49.1 1.9 26.5
  Very Fine (< 2) 47.5 1.8 26.5
  1. aTotal carbon.
  2. bTotal nitrogen.