Land availability for greenhouse gas removal by afforestation and Biomass Energy with Carbon Capture and Storage (BECCS)

通过植树造林和碳捕获与封存生物质能源（BECCS）去除温室气体的土地可用性

• 批准号: 2098439
• 金额: --
• 依托单位: University of East Anglia
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2098439
• 关键词: Land; availability; greenhouse; gas; removal

To meet the aspirations of the UNFCCC Paris Climate Agreement to limit increases of global mean temperature to well below 2C, future scenarios assume the large-scale use of afforestation and biomass energy with carbon capture and storage (BECCS) to remove carbon dioxide from the atmosphere. The availability of land and biomass residue streams (e.g. waste material from harvest) are key constraints on the ability to deliver these negative emission technologies at scale, given a context of global dietary trends and the inefficiencies in the global food system. In this directly-funded NERC PhD the student will critically assess the land use and residue stream assumptions used in future scenarios. You will start by critically examining the land-use scenarios from existing integrated assessment model studies used of the Shared Socioeconomic Pathways (SSPs). The next stage will involve a global spatial analysis of land-use and residue streams under a range of dietary and food system efficiency scenarios, using historical data and future UN projections of demand for food and other plant and animal products. Within this, the student will explore alternative scenarios of how demand for food and fibre is met and how it translates into land-use, which depends on factors such as crop yield, type of meat consumed, meat production systems and levels of waste within the food system. There will be opportunities to extend the analysis to consider economic trade-offs.

为了实现《联合国气候变化框架公约巴黎气候协定》将全球平均气温升幅限制在远低于2摄氏度的目标，未来的情景假设大规模使用植树造林和生物质能源以及碳捕获和储存，以从大气中清除二氧化碳。在全球饮食趋势和全球粮食系统效率低下的背景下，土地和生物质残留物流（例如收获产生的废料）的可用性是大规模提供这些负排放技术的能力的关键制约因素。在这个直接资助的NERC博士学位中，学生将批判性地评估未来情景中使用的土地利用和残留流假设。您将从批判性地检查土地使用情景从现有的综合评估模型研究使用的共享社会经济途径（SSP）。下一阶段将涉及在一系列饮食和粮食系统效率情景下，利用历史数据和联合国对粮食和其他动植物产品需求的未来预测，对土地使用和残留物流进行全球空间分析。在此范围内，学生将探索如何满足对食物和纤维的需求以及如何将其转化为土地使用的替代方案，这取决于作物产量，肉类消费类型，肉类生产系统和食物系统内的废物水平等因素。将有机会扩大分析，考虑经济权衡。