“…in slash and burn cultivation (Wallin & Segerström, 1994, Larsson, 1995, Emanuelsson, 2001). In addition, small fires, utilized to keep huts warm and prepare food, also produced charcoal (Bennett et al, 1990, Hörnberg et al, 2006, Sergant et al, 2006. However, in many environments, such as the boreal forest, natural fire is an important and recurrent factor (Zackrisson, 1977, Heinselman, 1981.…”