摘要
【目的】研究柳枝稷(Panicum virgatum L.)、荻(Triarrhena sacchariflora(Maxim.)Nakai)和芦竹(Arundo donax L.)3种草本能源植物在北京地区的生物质产量和品质特性,为其合理利用提供依据。【方法】于2006-2009年在北京草业与环境研究发展中心试验基地进行田间试验,对产量和品质指标进行田间观测和室内分析。【结果】在北京地区,柳枝稷、荻和芦竹的最高生物质产量分别为28.33、29.67和34.46t·hm-2。3种草中,柳枝稷和荻生物质中纤维素、半纤维素含量较高,木质素含量较低,有利于纤维素乙醇转化;热值、灰熔点和C、H元素含量较高,N元素、灰分和水分含量较低,有利于直接燃烧、与煤混合燃烧和热解气化,但C/N较高,不利于沼气发酵。芦竹生物质中的水分、木质素和灰分含量高于柳枝稷和荻,对运输贮藏、乙醇转化和燃烧产生不利影响。【结论】柳枝稷、荻和芦竹均可作为优良的草本能源植物在北京及周边地区推广种植,但应根据转化利用途径及三种草的产量水平和品质特性进行合理选择。
【Objective】 The objective of this experiment was to evaluate the yield and biomass characteristics of three herbaceous plants,namely switchgrass （Panicum virgatum L.）,silverreed （Triarrhena sacchariflora （Maxim.） Nakai） and giantreed （Arundo donax L.）,in Beijing of China for their rational utilization as bioenergy feedstocks. 【Method】 Field trials were conducted at experimental station of Beijing Research Development Center for Grasses and Environment from 2006 to 2009 and the biomass yield and quality parameters were investigated by field observations and laboratory analysis. 【Result】 The dry biomass yield was 28.33,29.67,and 34.46 t·hm-2 for switchgrass,silver reed,and giant reed,respectively. Among the three grasses,switchgrass and silverreed would be perfect for cellulosic ethanol conversion due to higher biomass content of cellulose and hemicellulose and lower lignin content,for direct combustion,co-combustion with coal,pyrolysis and gasification due to higher calorific value,ash melting temperature,and contents of C and H elements and lower content of N,ash,and moisture,but disadvantaged for methane fermentation because of higher ratio of C to N. Giantreed had higher biomass content of water,lignin,and ash than those of switchgrass and silverreed and would be disadvantaged for transport,storage,ethanol conversion,and combustion. 【Conclusion】 Switchgrass,silverreed,and giantreed,were appropriate for extended planting in Beijing and surrounding areas as excellent herbaceous energy plants. But reasonable species choice should be employed according to the conversion approach and the growth characteristics,productivity levels,and biomass quality characteristics of the three grasses.
出处
《中国农业科学》
CAS
CSCD
北大核心
2010年第16期3316-3322,共7页
Scientia Agricultura Sinica
基金
北京市科委科技计划项目(Z09050600630901,Z09090501040902)
关键词
草本能源植物
柳枝稷
荻
芦竹
herbaceous energy plant
switchgrass （Panicum virgatum L.）
silverreed （Triarrhena sacchariflora （Maxim.） Nakai）
Giantreed （Arundo donax L.）
