Spatial distribution of usable biomass feedstock and technical bioenergy potential in China
Spatial distribution of usable biomass feedstock and technical bioenergy potential in China
复制标题
中国可用生物质原料和技术生物能源潜力的空间分布
DOI：
10.1111/gcbb.12651
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发表时间：
2019-11-01
影响因子：
5.6
通讯作者：
Ding, Qun
中科院分区：
文献类型：
--
作者：
Nie, Yaoyu;Chang, Shiyan;Ding, Qun
生物质能在未来的能源供应和碳减排中将发挥重要作用。近年来，“因地制宜发展生物质能”和“分布式利用优先”是中国政府推动国家和省级生物质能发展的两大原则。虽然许多人认识到生物质能源在实现低碳转型中的重要性，但对中国可用生物质原料和技术生物质能源潜力的高分辨率分布知之甚少，这为制定本地化利用计划带来了不确定性和额外的挑战。我们提出了一个新的评估框架，整合作物生长模型，土地适宜性评估，地理信息系统，以解决这些知识差距。通过特定的转化技术，以1公里的分辨率绘制了11种可用生物质原料和3种技术生物能源潜力的分布图。在国家一级，最终技术沼气潜力为1.91 EJ。能源作物的技术生物乙醇潜力（0.04-0.96 EJ）可以提供2015年E10汽油消费的生物乙醇需求的0.13-3.12倍。技术热势（1.06 EJ）可满足各省供热需求（5.38 EJ）的20%。2020年生物能源的大部分目标都可以实现，但不包括生物乙醇，这将需要从残渣中提取更多的纤维素乙醇。在省一级，河南和内蒙古有潜力通过农林剩余物替代煤炭来开发清洁取暖替代品。研究结果可为中国生物质原料的分布和生物质能源的技术潜力提供系统的分析。在进一步研究中考虑经济因素，它还可以支持国家和省级政府有效和及时地制定生物能源发展计划。
Bioenergy will play an intimate and critical role in energy supply and carbon mitigation in the future. In recent years, "customizing the development of bioenergy to local conditions" and "prioritizing distributed utilization" have been the two key principles that have been released by the Chinese government to promote the national- and provincial-level development of bioenergy. While many recognize the importance of bioenergy in achieving low-carbon transition, little is known about the high-resolution distribution of usable biomass feedstock and technical bioenergy potential in China, which brings about uncertainties and additional challenges for creating localized utilization plans. We propose a new assessment framework that integrates crop growth models, a land suitability assessment, and the geographic information systems to address these knowledge gaps. Distributions of 11 types of usable biomass feedstock and three kinds of technical bioenergy potential are mapped out through specific transformation technologies at 1 km resolution. At the national level, the final technical biogas potential is 1.91 EJ. The technical bioethanol potential (0.04-0.96 EJ) from the energy crop can supply 0.13-3.12 times the bioethanol demand for the consumption of E10 gasoline in 2015. The technical heat potential (1.06 EJ) can meet 20% of the demand for heating in all provinces (5.38 EJ). Most of the 2020 bioenergy goals can be achieved, excluding that for bioethanol, which will need to require more cellulosic ethanol from residues. At the provincial level, Henan and Inner Mongolia have the potential to develop clean heating alternatives via the substitution of agroforestry residues for coal. The results can provide a systematic analysis of the distribution of biomass feedstocks and technical bioenergy potential in China. With economic factors taken into consideration in further research, it can also support national and provincial governments in making bioenergy development plans in an effective and timely manner.