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Quantifying greenhouse gas emissions from wood fuel use by households
Earth System Science Data ( IF 11.4 ) Pub Date : 2023-05-31 , DOI: 10.5194/essd-15-2179-2023
Alessandro Flammini , Hanif Adzmir , Kevin Karl , Francesco Nicola Tubiello

Abstract. The combustion of wood fuel for residential use is often not considered to be a source of greenhouse gas (GHG) emissions from households, as the emissions from wood fuel combustion can be offset by the CO2 absorbed by the growth of the forest (as a carbon sink) (IPCC, 2006). However, this only applies to wood that is harvested in a renewable way, i.e. at a rate not exceeding the regrowth rate of the forest from which it was harvested (Drigo et al., 2002). This paper estimates the share of GHG emissions attributable to non-renewable wood fuel harvesting for use in residential food activities, by country and with global coverage. It adds to a growing research base estimating GHG emissions from across the entire agri-food value chain, from the manufacture of farm inputs, through food supply chains, and finally to waste disposal (Tubiello et al., 2021). Country-level information is generated from United Nations Statistics Division (UNSD) and International Energy Agency (IEA) data on wood fuel use by households. We find that, in 2019, annual emissions from non-renewable wood fuel consumed for household food preparation were about 745×106 t (Mt CO2 eq. yr−1), with an uncertainty ranging from −63 % to +64 %. Overall, global trends were a result of counterbalancing effects: the emission increases were largely fuelled by countries in sub-Saharan Africa, southern Asia, and Latin America, whereas significant decreases were seen in countries in eastern Asia and South-East Asia. The Food and Agriculture Organization of the United Nations (FAO) has developed and regularly maintains a database covering GHG emissions from the various components of the agri-food sector, including pre- and post-production activities, by country and world regions. The dataset has been developed according to the International Panel on Climate Change guidelines (IPCC, 2006), which avoid overlaps between agriculture, forestry, and other land use (AFOLU) and energy components. The aforementioned dataset relies mainly on UNSD Energy Statistics data, which are used as activity data for the calculation of the GHG emissions (Tubiello et al., 2022). The information used in this work is available as open data at https://doi.org/10.5281/zenodo.7310932 (Flammini et al., 2022a).

中文翻译:

量化家庭使用木材燃料产生的温室气体排放

摘要。住宅用木质燃料的燃烧通常不被视为家庭温室气体 (GHG) 排放源,因为木质燃料燃烧的排放可以被森林生长吸收的 CO2 所抵消(作为碳汇)(IPCC,2006 年)。然而,这仅适用于以可再生方式采伐的木材,即采伐速度不超过其采伐地森林的再生长率(Drigo 等人,2002 年)。本文按国家和全球范围估算了用于住宅食品活动的不可再生木材燃料采伐造成的温室气体排放量份额。它增加了一个不断增长的研究基础,估计整个农业食品价值链的温室气体排放量,从农业投入品的制造到食品供应链,最后是废物处理(Tubiello 等人,2021 年)。国家层面的信息来自联合国统计司 (UNSD) 和国际能源署 (IEA) 关于家庭木质燃料使用的数据。我们发现,在 2019 年,家庭准备食物所消耗的不可再生木材燃料的年排放量约为 745×106 吨(Mt CO2 eq. yr−1),不确定性范围为 -63% 至 +64%。总体而言,全球趋势是平衡效应的结果:排放量增加主要由撒哈拉以南非洲、南亚和拉丁美洲国家推动,而东亚和东南亚国家则出现显着下降。联合国粮食及农业组织 (FAO) 开发并定期维护一个数据库,其中包含按国家和世界区域划分的农业食品部门各个组成部分的温室气体排放量,包括生产前和生产后活动。该数据集是根据国际气候变化专门委员会指南(IPCC,2006 年)开发的,该指南避免了农业、林业和其他土地利用 (AFOLU) 与能源组成部分之间的重叠。上述数据集主要依赖 UNSD 能源统计数据,这些数据用作计算温室气​​体排放量的活动数据(Tubiello 等人,2022)。本工作中使用的信息可作为开放数据在 https://doi.org/10.5281/zenodo.7310932(Flammini 等人,2022a)上获得。按国家和世界地区。该数据集是根据国际气候变化专门委员会指南(IPCC,2006 年)开发的,该指南避免了农业、林业和其他土地利用 (AFOLU) 与能源组成部分之间的重叠。上述数据集主要依赖 UNSD 能源统计数据,这些数据用作计算温室气​​体排放量的活动数据(Tubiello 等人,2022)。本工作中使用的信息可作为开放数据在 https://doi.org/10.5281/zenodo.7310932(Flammini 等人,2022a)上获得。按国家和世界地区。该数据集是根据国际气候变化专门委员会指南(IPCC,2006 年)开发的,该指南避免了农业、林业和其他土地利用 (AFOLU) 与能源组成部分之间的重叠。上述数据集主要依赖 UNSD 能源统计数据,这些数据用作计算温室气​​体排放量的活动数据(Tubiello 等人,2022)。本工作中使用的信息可作为开放数据在 https://doi.org/10.5281/zenodo.7310932(Flammini 等人,2022a)上获得。用作计算温室气​​体排放量的活动数据(Tubiello 等人,2022 年)。本工作中使用的信息可作为开放数据在 https://doi.org/10.5281/zenodo.7310932(Flammini 等人,2022a)上获得。用作计算温室气​​体排放量的活动数据(Tubiello 等人,2022 年)。本工作中使用的信息可作为开放数据在 https://doi.org/10.5281/zenodo.7310932(Flammini 等人,2022a)上获得。
更新日期:2023-05-31
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