亚马逊森林选择性采伐干扰后的碳恢复动态。
Carbon recovery dynamics following disturbance by selective logging in Amazonian forests.
作者信息
Piponiot Camille, Sist Plinio, Mazzei Lucas, Peña-Claros Marielos, Putz Francis E, Rutishauser Ervan, Shenkin Alexander, Ascarrunz Nataly, de Azevedo Celso P, Baraloto Christopher, França Mabiane, Guedes Marcelino, Honorio Coronado Eurídice N, d'Oliveira Marcus Vn, Ruschel Ademir R, da Silva Kátia E, Doff Sotta Eleneide, de Souza Cintia R, Vidal Edson, West Thales Ap, Hérault Bruno
机构信息
Université de Guyane, UMR EcoFoG (Agroparistech, CNRS, Inra, Université des Antilles, Cirad), Kourou, French Guiana.
Cirad, UMR EcoFoG (Agroparistech, CNRS, Inra, Université des Antilles, Université de Guyane), Kourou, French Guiana.
出版信息
Elife. 2016 Dec 20;5:e21394. doi: 10.7554/eLife.21394.
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 ±3 Mg C ha-1) than in the south (12 ±3 Mg C 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.
每年当200万公顷的亚马逊森林受到选择性采伐干扰时，超过90太克的碳会排放到大气中。随后，森林再生会抵消这些排放。我们采用一种原始的建模方法，该方法在亚马逊地区133个永久性森林地块（总计175公顷）的网络上进行了校准，将气候、土壤和初始生物量的区域差异与存活树木和新生长树木的碳通量联系起来，以提供全亚马逊范围采伐后碳恢复的预测。我们发现，在圭亚那地盾和西部，10年期间地上净碳恢复量（21±3 公吨碳/公顷）高于南部（12±3 公吨碳/公顷），因为南部环境压力较大（降雨少、季节性强）。我们强调了存活树木在森林再生中的关键作用，并绘制了一幅亚马逊地区干扰后碳恢复潜力的综合地图。
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