湖南省油菜秸秆资源作为生物质产业原料的潜力量化评估  

Quantitative assessment of the potential of rape straw resources as feedstock for biomass industry in Hunan Province

作　　者：何聪彧 陈清健 伏肖 杨茜云 易自力[1,2] 薛帅[1,2,3] HE Congyu;CHEN Qingjian;FU Xiao;YANG Qianyun;YI Zili;XUE Shuai(Hunan Engineering Laboratory of Miscanthus Ecological Applications,College of Bioscience&Biotechnology,Hunan Agricultural University,Changsha 410128,China;Hunan Branch,National Energy R&D Center for Non-food Biomass,Hunan Agricultural University,Changsha 410128,China;Yulushan Laboratory,Changsha 410128,China;College of Humanities and Foreign Languages,Hunan Agricultural University,Changsha 410128,China)

机构地区：[1]芒属植物生态应用技术湖南省工程实验室,湖南农业大学生物科学技术学院,长沙410128 [2]国家能源非粮生物质原料研发中心湖南分中心,湖南农业大学,长沙410128 [3]岳麓山实验室,长沙410128 [4]湖南农业大学人文与外语学院,长沙410128

出　　处：《农业工程学报》2024年第17期234-243,共10页Transactions of the Chinese Society of Agricultural Engineering

基　　金：湖南省自然科学基金(2024JJ7225)。

摘　　要：油菜(Brassica napus L.)秸秆作为重要的生物质资源,在环境保护和经济效益方面有着显著优势,具有高纤维素含量、利用成本低等优点,合理的利用可为相关产业原料的供应提供重要保障。湖南省作为中国油菜主产区,理论上具备产业化开发的潜力。全面了解生物质产量潜力和原料品质的区域差异是合理利用秸秆资源的前提与基础。因此,该研究对湖南省油菜秸秆资源产量潜力和原料品质空间异质性进行研究,基于此对油菜秸秆作为未来生物质产业原料的潜力进行评估。结果表明:湖南省油菜秸秆年产量为660.47万t,其中以湘北(35.71%)和湘中地区(32.43%)贡献最大,产量潜力分别达到了235.84万t和214.21万t。湖南省油菜秸秆生物质原料品质存在较高的异质性,所有表征指标的变异系数(coefficient of variation,CV)值均很高(>0.50)。生物质原料品质差异主要表现在重金属含量方面(CV>5.00)。此外,油菜秸秆生物质在灰分含量(CV=3.02)、木质素含量(CV=1.17)和纤维素聚合度(CV=1.15)方面也具有较为明显的差异。基于测定的多项品质指标,该研究通过构建基于隶属函数的生物质生产潜力指数进行原料品质指标的归一化处理。从生物质生产潜力指数上看,湖南省油菜秸秆最适合生产半纤维素基产品,尤其是湘北地区的油菜秸秆(潜力指数为0.60)。总体上看,具备较高产量潜力和较优原料品质的湘北地区可作为全省油菜秸秆产业的先行原料供应区。Rape(Brassica napus L.)straw has been one of the most important biomass resources in environmental protection and economic benefits,due to the high cellulose content and low utilization cost.A reasonable utilization rate can provide great contributions to the around-year feedstock supply for the biomass industries.However,it still lacks scientific and rational theoretical guidance on the utilization of straw resources.Most straws have been abandoned in the fields or directly burned,leading to severe environmental pollution and resource waste.Moreover,current straw utilization(such as returning straw to the field)can also exhibit certain negative effects.The waste of biomass resources has caused significant economic losses and ecological damage.It is a high demand to formulate the scientifically efficient straw utilization mode for the sustainable and green straw biomass industry.The high-value-added biomass products can be effectively converted for the environmentally and socio-economically friendly development of straw resources.Among them,Hunan Province can also share the potential of industrial utilization of the rape straw,due to the main producing area of rape in China.Therefore,the present study aims to explore the biomass yield potential and regional differences for the rational utilization of the rape straw resources in Hunan Province,in terms of biomass quality.Some recommendations were also given to utilize the rape straw for the future bioeconomy,according to the spatial heterogeneity of straw resources in the whole province.The results indicate that Hunan Province produced approximately 6.74 million tons of rape straw each year.The major production was concentrated in the northern region.There is significant heterogeneity in the feedstock quality of rape straw biomass across the province.All characterization indicators showed high coefficients of variation(CV>0.50),indicating substantial variability.The differences in biomass quality were primarily represented in the heavy metal content,indicating a p

关 键 词：生物质 产业 品质 油菜秸秆 生物基产品 生产潜力指数 空间异质性 

分 类 号：Q819[生物学—生物工程]