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Table 2 Soil organic carbon and total nitrogen concentrations at three depths under different grazing management systems

From: Enhancing soil organic carbon, particulate organic carbon and microbial biomass in semi-arid rangeland using pasture enclosures

Depth (cm) Total soil organic carbon (g kg−1) Total nitrogen (g kg−1)
OGR CGE GDE OGR CGE GDE
0–10 4.93 ± 0.69Ba 6.22 ± 0.78Aa 6.61 ± 0.89Aa 0.53 ± 0.07Ba 0.63 ± 0.08Aa 0.65 ± 0.08Aa
10–20 4.88 ± 0.65Ba 5.86 ± 0.67Aa 6.28 ± 0.99Aa 0.58 ± 0.11Ba 0.63 ± 0.08Aa 0.61 ± 0.07ABa
20–40 4.36 ± 0.74Bb 5.57 ± 0.57Ab 5.47 ± 0.77Ab 0.52 ± 0.10Bb 0.61 ± 0.08Aa 0.59 ± 0.07Ab
Pooled mean 4.72 ± 0.73B 5.88 ± 0.72A 6.12 ± 1.00A 0.54 ± 0.09B 0.62 ± 0.08A 0.62 ± 0.08A
  1. Values are mean ± SD (n = 9). Values with different uppercase letters across the rows (grazing systems) and the lowercase letters within columns (soil depths) are significantly different at P < 0.05
  2. OGR Open grazing rangeland, CGE contractual grazing enclosure, GDE grazing dominated enclosure