ABSTRACT Forest fires contribute to climate change mainly due to emission of greenhouse gases by biomass burning and loss of sequestration by sink destruction. The average contribution in Spain between 1998 and 2015 was 9,494,910 Mg CO2 eq per year, 23.8% from biomass burning and 76.2% from loss of carbon sequestration, the latter three times higher than the former, although the emissions from combustion are usually the only accounted. Regarding to the vegetation burned, 43.6% of emissions come from forest (17.7% conifers, 4.8% hardwoods and 21.1% Eucalyptus), 53.7% from scrublands and 2.7% from grasslands. The loss of sequestration is 6.6% in the fire year and by 93.4% in previous years. Scrubland burning produces a greater amount of emissions than forests, but forest regeneration is slower, with greater influence on the loss of sequestration. It is essential a forest management focused on increase fire resilience and adaptation to climate change, increase the effectiveness of extinction works to reduce fire damages and implement actions to recover the burnt vegetation, because the loss of sinks is a critical aspect.

中文翻译：

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西班牙森林火灾对气候变化的贡献：排放和封存损失

摘要 森林火灾导致气候变化的主要原因是生物质燃烧排放的温室气体和汇破坏造成的封存损失。1998 年至 2015 年间西班牙的平均贡献为每年 9,494,910 Mg CO2 当量，其中 23.8% 来自生物质燃烧，76.2% 来自碳封存损失，后者是前者的三倍，尽管燃烧排放通常是唯一的. 关于燃烧的植被，43.6% 的排放来自森林（17.7% 针叶树、4.8% 硬木和 21.1% 桉树）、53.7% 来自灌木丛和 2.7% 来自草原。火灾年度的封存损失为 6.6%，前几年为 93.4%。灌木林燃烧产生的排放量比森林多，但森林更新较慢，对封存损失的影响更大。