Research Article
Effects of Land Use Change and Seasonality of Precipitation on Soil Nitrogen in a Dry Tropical Forest Area in the Western Llanos of Venezuela
Table 1
Soil properties in the study sites (according to González-Pedraza and Dezzeo [
24,
25]).
| Component | Depth (cm) | Forest | YP | OP |
| Bulk density (g cm−3) | 0–5 |
1.2 ± 0.0a | 1.1 ± 0.1a | 1.1 ± 0.0a | %Humidity | 0–5 | 31.4 ± 1.0a | 37.9 ± 1.7b | 33.9 ± 0.9ab | %Sand | 0–5 | 19.8 ± 1.7a | 12.5 ± 2.3b | 22.3 ± 1.6ª | %Silt | 0–5 | 49.7 ± 1.8a | 44.8 ± 1.8a | 47.1 ± 1.3a | %Clay | 0–5 | 30.5 ± 2.8a | 42.7 ± 3.1b | 30.6 ± 1.9a | pH H2O | 0–5 | 5.4 ± 0.1a | 5.0 ± 0.14ab | 4.8 ± 0.1b | SOC (g C m−2) | 0–5 | 1389.9 ± 251.9a | 1472.7 ± 400.2a | 1516.7 ± 249.9a |
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Mean values ± standard deviation. Different lowercase letters indicate significant differences between sites (). YP: 5-year-old pasture; OP: 18-year-old pasture; SOC: soil organic carbon.
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