Wildfires are disturbances that affect forest structure and dynamics. Forests and the atmosphere interact in different ways; one is by emitting carbon (C) through wildfires and recapturing it by photosynthesis of regrowing vegetation. Estimation of C emissions and uptake allows monitoring and inventorying C at stand, landscape, or regional levels. We indirectly estimated C and other greenhouse gas emissions and uptake following Intergovernmental Panel on Climate Change (IPCC) guidelines, and also using growth curves derived from real data, in three burned pure Andean cypress (Austrocedrus chilensis) stands in Patagonia, Argentina. The sites, termed INTA (humid), LACO (mesic) and CECE (xeric), were burned on different dates (1987, INTA; 1999, CECE; 2008, LACO). Nearby unburned stands with similar structural and floristic characteristics were used as analogues to make our estimations. Carbon losses represented 245, 225, and 215 t CO2 ha−1 for CECE, INTA and LACO respectively. Amount of carbon sequestered by post-fire vegetation depended on the time-lag from fire occurrence to date of sampling, whereas C uptake rates varied in time according to differences in site environmental conditions. Andean cypress seedlings present in burned stands suggest that outside the time needed, each site may recover not only lost C but also former structure and functions.

中文翻译：

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阿根廷巴塔哥尼亚安第斯柏树（Austrocedrus chilensis）森林的碳平衡和火排放

野火是影响森林结构和动态的干扰。森林和大气以不同的方式相互作用；一种是通过野火排放碳 (C)，并通过再生植被的光合作用重新捕获碳。碳排放和吸收的估算允许在林分、景观或区域层面监测和清点碳。我们根据政府间气候变化专门委员会 (IPCC) 的指导方针，并使用来自真实数据的生长曲线，在阿根廷巴塔哥尼亚的三个燃烧的纯安第斯柏树（Austrocedrus chilensis）中间接估计了 C 和其他温室气体的排放和吸收。这些场地被称为 INTA（潮湿）、LACO（中等）和 CECE（干旱），在不同的日期被烧毁（1987 年，INTA；1999 年，CECE；2008 年，LACO）。附近具有相似结构和植物区系特征的未燃烧林被用作类似物来进行我们的估计。CECE、INTA 和 LACO 的碳损失分别为 245、225 和 215 t CO2 ha-1。火灾后植被固存的碳量取决于从火灾发生到采样日期的时间滞后，而 C 吸收率根据现场环境条件的差异而随时间变化。烧毁林分中的安第斯柏树苗表明，在所需时间之外，每个站点不仅可以恢复丢失的 C，还可以恢复以前的结构和功能。而 C 吸收率随场地环境条件的差异而随时间变化。烧毁林分中的安第斯柏树苗表明，在所需时间之外，每个站点不仅可以恢复丢失的 C，还可以恢复以前的结构和功能。而 C 吸收率随场地环境条件的差异而随时间变化。烧毁林分中的安第斯柏树苗表明，在所需时间之外，每个站点不仅可以恢复丢失的 C，还可以恢复以前的结构和功能。