PEAT IN BRAZIL: GEOLOGY, RESERVES, PRODUCTION AND UTILIZATION

摘要

Peat utilization in Brazil has traditionally been linked to the availability of the main components of the country's energy matrix at particular points in time. The main deposits were discovered in the 1970's and 1980's, in the context of a crisis in foreign petroleum supplies. They are basically found in minerotrophic mires and may be classified in terms of location as either littoral, associated with high estuarine environments, or inland, enclosed by the floodplains of meandering rivers. These resources amount to 1 billion cubic metres, of which 20% has been surveyed. The two main production units are responsible for an annual output of 145,000 m~3, of which 80% is nowadays intended for agricultural purposes.