Data from: Carbon recovery dynamics following disturbance by selective logging in Amazonian forests

When 2 Mha of Amazonian forests are disturbed by selective logging each year, more than 90 Tg of carbon (C) is emitted to the atmosphere. Emissions are then counterbalanced by forest regrowth. With an original modelling approach, calibrated on a network of 133 permanent forest plots (175 ha total) across Amazonia, we link regional differences in climate, soil and initial biomass with survivors' and recruits' C fluxes to provide Amazon-wide predictions of post-logging C recovery. We show that net aboveground C recovery over 10 years is higher in the Guiana Shield and in the west (21{plus minus}3 MgC ha-1) than in the south (12{plus minus}3 MgC ha-1) where environmental stress is high (low rainfall, high seasonality). We highlight the key role of survivors in the forest regrowth and elaborate a comprehensive map of post-disturbance C recovery potential in Amazonia.

每年有2百万公顷（Mha）的亚马逊森林遭受选择性采伐干扰，向大气排放逾90太克（Tg）的碳（C）。上述碳排放可通过森林的恢复生长过程得到抵消。本研究采用原创建模方法，基于覆盖亚马逊全域的133个固定森林样地（总样地面积175公顷）的观测网络完成参数校准，将气候、土壤与初始生物量的区域差异与存活木、新生木的碳通量相关联，以此实现亚马逊区域尺度上采伐后碳恢复的全域预测。研究表明，10年尺度下的净地上碳恢复量在圭亚那地盾（Guiana Shield）及亚马逊西部可达21±3 MgC ha⁻¹，显著高于环境胁迫较强（降雨量偏低、季节波动剧烈）的南部区域（12±3 MgC ha⁻¹）。本研究明确了存活木在森林恢复过程中的核心作用，并绘制了亚马逊流域受干扰后碳恢复潜力的综合分布图。