The future role of agriculture and land use change for climate change mitigation in Bangladesh

The future role of agriculture and land use change for climate change mitigation in Bangladesh
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DOI:
10.1007/s11027-014-9545-8
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发表时间:
2015-12
影响因子:
4
通讯作者:
T. Jilani;T. Hasegawa;Y. Matsuoka
T. Jilani;T. Hasegawa;Y. Matsuoka
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
T. Jilani;T. Hasegawa;Y. Matsuoka

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在孟加拉国,2005年53%的国内温室气体排放产生于农业和其他土地使用部门。然而,迄今为止,在这些部门,国家还没有指定具体的减缓气候变化措施。在本文中,我们量化了未来的温室气体排放量和减缓潜力,到2025年,通过使用农业,林业和其他土地利用自下而上的模型,以澄清成本效益的技术方案,在不同的减缓成本情景。我们发现,(1)温室气体排放量为69.1 MtCO 2 eq在基线情景中,2025年农业和土地使用部门将产生(百万吨二氧化碳当量)/年,(2)减少32 MtCO 2当量/年(较基线排放量减少47%)到2025年,成本可能高达10美元/吨二氧化碳当量,(3)农业,通过在水稻种植中实施季中排水,从牲畜粪便中产生生物能源,以及在2025年以10美元/吨CO2当量的缓解成本用精饲料替代粗饲料,以及(4)在其他土地利用部门,6.5 MtCO 2当量/年的平均年缓解潜力可在总缓解成本低于1,000万美元的情况下实现(2025年土地使用基准排放量的52%)。
In Bangladesh, 53 % of domestic greenhouse gas (GHG) emissions were generated in the agriculture and other land use sectors in 2005. However, no specified measures for climate change mitigation have thus far been designated nationally in these sectors. In this paper, we quantified future greenhouse gas emissions and mitigation potentials through 2025 by using the Agriculture Forestry and Other Land Use Bottom-up model to clarify cost-effective technological options under different mitigation cost scenarios. We found that (1) GHG emissions of 69.1 MtCO2eq (Million tons of carbon dioxide (CO2) equilivalent)/year will be generated from the agriculture and land use sectors in 2025 in a baseline scenario, (2) a reduction of 32 MtCO2-eq/year (a 47 % reduction from baseline emissions) is possible at a cost of as much as US$10/tCO2-eq in 2025, (3) in agriculture, an emissions reduction of 10 MtCO2-eq/year could be achieved by implementing midseason drainage in rice cultivation, generating bioenergy from livestock manure, and replacing roughage with concentrated feed at mitigation cost of US$10/tCO2-eq in 2025, and (4) in the other land use sector, a mean annual mitigation potential of 6.5 MtCO2-eq/year can be achieved with a total mitigation cost of less than US$10 million (52 % of baseline land use emissions in 2025).