In another vein, and based on the latest study published by, it is of great interest to take into account the deforestation linked to international trade, especially since Spain causes the deforestation of 32,900 hectares of forest each year (the production and consumption of soybeans, palm oil and beef are the main items that explain this situation). The coniferous forests have a similar extension than the hardwood ones (5.7 and 5.2 million hectares, respectively) while the mixed ones have a somewhat smaller population (3.9 million hectares). Hitherto, when a forest fire occurs, the habitat is destroyed, without it being possible to avoid the devastation of the environment when the fire is due to natural causes.Īccording to Government of Spain, Spanish forest ecosystems occupy just over 26 million hectares (26,280.281 ha), of which almost 15 million (14,717.898 ha) are wooded and some 12 (11,562.382 ha) treeless, which respectively represent 29 and 23% of the national territory. The Spontaneous Forest Fire Process (SFFP) and fAPAR have a close relationship because pre-ignition occurs when the critical temperature determined by environmental conditions is reached. After analyzing satellite data, it was discovered that the critical temperature at which a fire starts spontaneously is 51.27☌, a value that coincides with the maximum limit of decrease in environmental sulfur dioxide concentration (), presumably due to sulfur capture by part of the wood, an element that is released into the environment after the fire occurs. A big-data analysis of three spontaneous forest fires that occurred in Spain between 20 was performed to determine the chemical compound from which the forest fire starts. When environmental conditions are favorable, chemical reactions occur at the forest mass level, resulting in pre-ignition. One of the causes of a forest fire is a combination of environmental variables such as temperature and relative humidity, as well as wind speed.

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