This data set provides a time series of calcium, magnesium, and potassium extracted from soil samples from a laboratory column extraction study conducted in 2002. Soils used in the columns were originally collected in 1998 in Fazenda Vitoria, a cattle ranch 6 km north of the town of Paragominas, Para, Brazil. The soils were from contrasting land uses of primary forest (mata), secondary forest (capoeira), or pasture (pasto). Water equilibrated with increasing concentrations of CO2 was used to extract cations from the soil columns. Data represent the time series of cation concentrations in the extract solutions as well as the total content of cations removed from the soils. There is one comma-delimited ASCII file with this data set.
Deforestation around the world
Deforestation around the world
The study-cases reported here may call attention for the velocity we are losing our forests in a planetary scale and for inestimable impact that will have in human life quality, in wild life, in water, soil and air and in the world economy. To keep it short, it won’t be a surprise if the cost to fix the losses would overcome the investments we have done to achieve the present unsustainable development.