Forest Fire has been a very serious issue in western region of Indonesia, especially in Sumatera dan Kalimantan Islands, where a huge acreage of forest was burned, both naturally and intentionally. Intentional burning mostly associated with illegal effort in land clearing for establishing new plantations, mainly for oil palm plantations.
Fire has an effect on landscape pattern and vise versa. Fire dictates resulting spatial patterns but preexisting landscape patterns also dictate spread and severity of fire. Wildfires are natural processes that shape landscape, but anthropogenically-altered fire regimes may affect spatial fire extent and patterns.
Forest fire causes many kind of negative impacts, including:  Vegetation loss; therefore, less CO2 will be assimilated by plants;  Air pollution, increasing CO2 emission and solid particles; creating human health problems, especially breathing problems;  Limiting visibility, increasing transportation risks;  Reducing effective working hour and productivity; and  Less enjoyable social life, especially outdoor activities.
Forest fire probability increase if there are ignition (human activity), fuel sources (dried vegetation), and accelerated by hot and dry weather.
Slide for this session can be downloaded here: Landscape Ecology 07