Centre de Recherche Public - Gabriel Lippmann, Department "Environment and Agro-biotechnologies", 41, rue du Brill, L-4422 Belvaux, Luxembourg; Université catholique de Louvain, Earth & Life Institute, Bioengineering, Croix du Sud 2, box L7.05.19, B-1348 Louvain-la-Neuve, Belgium.
Université catholique de Louvain, Earth & Life Institute, Bioengineering, Croix du Sud 2, box L7.05.19, B-1348 Louvain-la-Neuve, Belgium.
Bioresour Technol. 2014 Aug;166:358-67. doi: 10.1016/j.biortech.2014.05.054. Epub 2014 May 23.
The biomethane yield of various energy crops, selected among potential alternatives to maize in the Greater Region, was assessed. The biomass yield, the volatile solids (VS) content and the biochemical methane potential (BMP) were measured to calculate the biomethane yield per hectare of all plant species. For all species, the dry matter biomass yield and the VS content were the main factors that influence, respectively, the biomethane yield and the BMP. Both values were predicted with good accuracy by linear regressions using the biomass yield and the VS as independent variable. The perennial crop miscanthus appeared to be the most promising alternative to maize when harvested as green matter in autumn and ensiled. Miscanthus reached a biomethane yield of 5.5 ± 1 × 10(3)m(3)ha(-1) during the second year after the establishment, as compared to 5.3 ± 1 × 10(3)m(3)ha(-1) for maize under similar crop conditions.
评估了大区域内玉米的几种潜在替代能源作物的生物甲烷产量。测量了生物质产量、挥发性固体 (VS) 含量和生化甲烷潜能 (BMP)，以计算所有植物物种每公顷的生物甲烷产量。对于所有物种，干物质生物质产量和 VS 含量是分别影响生物甲烷产量和 BMP 的主要因素。使用生物质产量和 VS 作为自变量的线性回归可以很好地预测这两个值。在秋季青贮时，多年生作物芒草作为绿肥似乎是最有前途的玉米替代作物。芒草在建立后的第二年达到了 5.5±1×10(3)m(3)ha(-1)的生物甲烷产量，而在类似的作物条件下，玉米的产量为 5.3±1×10(3)m(3)ha(-1)。
