Spatial variability of the properties of the soil in the Brazilian Amazon basin under natural vegetation

• Grant number: 00/02439-0
• Support type: Regular Research Grants
• Duration: July 01, 2000 - June 30, 2001
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: Carlos Clemente Cerri
• Grantee: Carlos Clemente Cerri
• Home Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

The research proposes to study the spatial variability of the soil properties, with emphasis on organic carbon, in the Brazilian Amazon basin under native vegetation. The study of the spatial variability will be carried out starting with the elaboration, harmonization and updating of a database of georeferenced data on the soils of the Amazon basin.After the harmonization of the database (estimate of missing data such as soil density), the carbon contents will be calculated based on results derived from the total sum of the available values up to a meter in depth and from those derived from the use of an exponential model of vertical variability of carbon. The maps of values and of associated errors will be calculated by the combination of the model of vertical variability and geostatistical techniques (this methodology was previously developed and tested in a 334,000 km2 region of Amazonia). (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BERNOUX‚ M.; DA CONCEIÇÃO‚ M.; CARVALHO‚ S.; VOLKOFF‚ B.; CERRI‚ C.C. CO2 emission from mineral soils following land-cover change in Brazil. GLOBAL CHANGE BIOLOGY, v. 7, n. 7, p. 779-787, 2001.