Controlled (or "prescribed") burning
Definition
Intentional and controlled fires in bush land or forest designed to prevent more intensive, uncontrolled forest or bushfires.
Source
"Glossary and Abbreviations", Barnsley, Ingrid, United Nations University Institute of Advanced Studies (UNU-IAS) 2009, "UNUIAS Guide, Reducing Emissions from Deforestation and Degradation in Developing Countries (REDD): A Guide for Indigenous Peoples." January 2009 http://www.ias.unu.edu/resource_centre/2009_REDD_Guide.pdf
Alternative definition
Natural and human-caused wildfires.
Alternative source