木质纤维素草本植物边际土地可持续生产模式探究

Sustainable production model of lignocellulosic herbaceous plant on marginal land in china

基于边际土地长期规模化种植木质纤维素草本植物有利于解决我国非粮生物质原料可持续生产和供应问题。然而,由生物质原料集约化生产与边际土地生境所致的一些潜在问题会影响木质纤维素草本植物的可持续生产。基于京郊边际土地木质纤维素草本植物规模化示范种植实践,提出了种类筛选、保护性耕作、混合种植、水肥管理、杂草控制、生物质收获等一系列可持续生产技术,构建了木质纤维素草本植物边际土地可持续生产模式,展望了今后开展木质纤维素草本植物可持续生产技术研究的主要内容,以期为我国非粮生物质原料的可持续生产和供应提供理论支持与技术支撑。

Lignocellulosic herbaceous plant has the potential to be cultivated on marginal land in large scale for a long run,for the sustainable production and supply of biomass feedstock in China in the future.Potential problems,due to the intensive production of biomass feedstock and the habitats of marginal land,would exert negative influences on its sustainable production.Based on the large-scale cultivation of lignocellulosic herbaceous plant on marginal land in Beijing suburb,the sustainable production techniques were proposed,namely,species screening,conservation tillage, mixed cultivation,water and fertilizer management,non-weeding,biomass harvest,etc.The sustainable production model of lignocellulosic herbaceous plant was constructed and the main research work on sustainable production technique was proposed,which would provide theoretical basis and technical support for the sustainable production and supply of non-food biomass feedstock on marginal land in China.