Ecological Footprint: Refining the carbon Footprint calculation
Ecological Footprint: Refining the carbon Footprint calculation
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DOI：
10.1016/j.ecolind.2015.09.040
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发表时间：
2016-02-01
影响因子：
6.9
通讯作者：
Marchettini, Nadia
中科院分区：
文献类型：
--
作者：
Mancini, Maria Serena;Galli, Alessandro;Marchettini, Nadia
在生态足迹方法中，碳足迹部分被定义为封存未被海洋吸收的人为二氧化碳排放所需的再生森林能力。碳足迹的一个关键参数是平均森林固碳(AFCS)，这是根据森林生态系统的净固碳能力计算得出的。本文件的目的是通过审查碳足迹组成部分背后的理论基础和方法，并更新其计算中的一个关键因子--AFCS，来增加生态足迹的清晰度和透明度。根据所考虑的三种森林(原生林、其他自然再生林和人工林)的人类管理程度，设定了多种计算选项，以计算不同的碳固存比率。与森林野火和土壤以及采伐的木材产品有关的碳排放首次被包括在本次更新的森林森林火灾和土壤碳排放量计算中。总体而言，已确定AFCS值范围为0.73+/-0.37t C ha(-1)yr(-1)。然后根据该值范围评估所产生的碳足迹和生态足迹值。结果证实，人类对生态系统服务的需求超出了生物圈提供这些服务的自然能力。(C)2015爱思唯尔有限公司。保留所有权利。
Within the Ecological Footprint methodology, the carbon Footprint component is defined as the regenerative forest capacity required to sequester the anthropogenic carbon dioxide emissions that is not absorbed by oceans. A key parameter of the carbon Footprint is the Average Forest Carbon Sequestration (AFCS), which is calculated from the net carbon sequestration capacity of forests ecosystems. The aim of this paper is to increase the clarity and transparency of the Ecological Footprint by reviewing the rationale and methodology behind the carbon Footprint component, and updating a key factor in its calculation, the AFCS. Multiple calculation options have been set to capture different rates of carbon sequestration depending on the degree of human management of three types of forest considered (primary forests, other naturally regenerated forests and planted forests). Carbon emissions related to forest wildfires and soil as well as harvested wood product have been included for the first time in this update of the AFCS calculation. Overall, a AFCS value range of 0.73 +/- 0.37 t C ha(-1) yr(-1) has been identified. The resulting carbon Footprint and Ecological Footprint values have then been evaluated based on this value range. Results confirm that human demand for ecosystem services is beyond the biosphere's natural capacity to provide them. (C) 2015 Elsevier Ltd. All rights reserved.