摩尔多瓦能源作物资源的动员

IF 0.9 4区 农林科学 Q3 AGRONOMY
V. Țîței
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引用次数: 1

摘要

在当前能源价格急剧上涨和气候变化引起的频繁天气异常的背景下,人类面临着两大问题:粮食供应和能源安全,这迫使我们寻找解决这些问题的替代方法,包括减少对化石燃料的依赖和开发可再生能源生产的新技术过程。本研究的主要目的是评估来自当地栽培品种的一些农业生物学特性和收获生物量的质量:“Solar”Helianthus tuberosus,“Ileana”Inula helenium,“Vital”Silphium perfoliatum,“Energo”Sida hermaphrodita,“Vigor”galegiformis,“Titan”Miscanthus giganteus,“阿根廷”高粱alum,“Gigant”Polygonum sachalinense以及将其生物量用作可再生能源生产原料的前景。结果表明,所研究品种在第二生长期及之后的生长速度最佳,刈割后再生能力中等,每季可刈割1 ~ 3次,绿量为4.61 ~ 14.25 kg/m2,可用于沼气厂厌氧消化,有机质生化甲烷势为297 ~ 336升/kg。此外,消化液和富草肥被认为是很好的肥料,富含植物可利用的营养物质,如氮、磷酸盐和钾肥,可以作为有机农业中化石矿物肥料的替代品。所研究品种的茎在秋冬季节迅速脱水,可以切碎、碾磨,用作纤维素乙醇和固体生物燃料生产的原料。木质纤维素组成分析表明,干物质中纤维素含量为375 ~ 517 g/kg,半纤维素含量为211 ~ 305 g/kg,酸性洗涤木质素含量为68 ~ 134 g/kg。估计细胞壁碳水化合物的理论乙醇产量平均为408-591 L/t。茎生物量的总热值为18.63 ~ 19.50 MJ/kg。固体燃料致密球团和压块的比密度符合质量标准要求。所获得的结果表明,在摩尔多瓦共和国,使用当地品种创建能源种植园的可能性。这些品种的种植和收获不需要像森林开发那样复杂的机制和特定的设备。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Mobilization of Energy Crop Resources in Moldova
In the context of the current sharp rise in energy prices and frequent weather anomalies caused by climate change, humankind faces two major problems: food supply and energy security, which compels us to look for alternative ways of solving these problems, including the reduction of the dependence on fossil fuels and the development of new technological processes for renewable energy production. The main objectives of this study were to evaluate some agrobiological peculiarities and the quality of harvested biomass from local cultivars: ‘Solar’ Helianthus tuberosus, ‘Ileana’ Inula helenium, ‘Vital’ Silphium perfoliatum, ‘Energo’ Sida hermaphrodita, ‘Vigor’ Astragalus galegiformis, ‘Titan’ Miscanthus giganteus, ‘Argentina’ Sorghum almum, ‘Gigant’ Polygonum sachalinense and the prospects of using their biomass as feedstock for renewable energy production. It was found that the studied cultivars, in the second and following growing seasons, were characterised by optimal growth rate and moderate regenerative capacity after being mowed, making it possible to cut by 1-3 times per season, obtaining 4.61-14.25 kg/m2 green mass, which may be used for anaerobic digestion in biogas plants, with biochemical methane potential of 297-336 litre/kg organic matter. Besides, digestate and fugate are believed to be good fertilizers, being rich in plant available nutrients such as nitrogen, phosphate and potash, and could serve as a replacement for fossil based mineral fertilizers in organic farming. The stems of the studied cultivars quickly dehydrate in the autumn-winter period, and can be chopped, milled and used as feedstock for the production by cellulosic ethanol and solid bio fuel. The analysis of lignocellulose composition showed that the dry matter contained 375-517 g/kg cellulose, 211-305 g/kg hemicellulose, 68-134 g/kg acid detergent lignin. The estimated theoretical ethanol yield from cell wall carbohydrates averaged 408-591 L/t. The gross calorific value of stem biomass was 18.63-19.50 MJ/kg. The specific density of densified solid fuel pellets and briquettes meet the quality standard requirements. The obtained results indicate the possibility of using the local cultivars for the creation of energy plantations in the Republic of Moldova. The cultivation and harvesting of these cultivars do not require sophisticated mechanisms and specific equipment like as in forest exploitations.
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来源期刊
Romanian Agricultural Research
Romanian Agricultural Research 农林科学-农艺学
CiteScore
0.90
自引率
28.60%
发文量
2
审稿时长
>12 weeks
期刊介绍: The Journal ROMANIAN AGRICULTURAL RESEARCH is an “open access” one, which publishes original articles, short communications, presenting new scientific results – theoretical, experimental and technical – on plant breeding and genetics, physiology, biotechnology, mineral nutrition and plant protection, in field crops. Reviews on up-to date subjects and recent research, preferably from Eastern Europe, may also be published.
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