Effects of Land Use Change and Seasonality of Precipitation on Soil Nitrogen in a Dry Tropical Forest Area in the Western Llanos of Venezuela

Figure 2

Mineralized ammonium accumulated during 15 weeks of the incubation experiment in laboratory conditions in forest and pastures soils. Mean values with standard error bars across forest and pastures. Different lowercase letters indicate significant differences between sites (). YP: 5-year-old pasture; OP: 18-year-old pasture.