采收时间对洞庭湖区鹅掌楸生物量和燃烧质量的影响

IF 0.8 4区 工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY Solid Fuel Chemistry Pub Date : 2024-11-06 DOI:10.3103/S0361521924700423
Viswanathan Kinipalayam Eswaran, Senthilkumar Veerasamy, Pradeep Thirumoorthy, Sampathkumar Velusamy
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引用次数: 0

摘要

人们日益认识到,生物质能源是一种替代传统能源的前景广阔的能源,具有潜在的可持续性和环境效益。马齿苋已成为能源作物中的佼佼者,尤其值得注意的是马齿苋(M. lutarioriparius)。本研究深入探讨了中国洞庭湖周围独特的滨海湿地中胡枝子的收获时间与生物质产量和燃烧质量之间的复杂关系。为了探索这些动态变化,我们精心实施了一项广泛的田间试验,并获得了全面的宝贵见解。(1) 首先,这项研究发现了一个矛盾的趋势:延迟芦竹的采收会导致茎叶比增加。然而,这种表面上的好处却被总体生物量产量的明显下降所抵消,这主要是由于采收延迟导致叶片脱落。深入研究生物量组成的复杂性,延迟收割会产生重大影响。(2)具体地说,它们导致鲁塔里欧梨生物质中的水分含量、灰分含量和半纤维素含量明显减少。相关性分析进一步强调了纤维素和木质素的重要性,它们的含量与热值之间有很强的正相关性,而半纤维素则表现出非常显著的负相关。(3) 此外,研究还涉足生物质中的矿物质元素领域。延迟收割导致矿物质含量大幅减少,钾(K)和钙(Ca)含量出现明显波动。此外,灰分含量与钾(K)和硅(Si)含量呈正相关,揭示了矿物元素之间错综复杂的相互作用。尽管延迟收割会导致生物量减少,但仍有一线希望。通过全面评估,确定了从 11 月下旬到第二年 1 月底的最佳收割时间,以最大限度地提高燃料质量。对收割时机的这种细致入微的理解,可在优化利用胡枝子这种宝贵的能源资源方面发挥关键作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Effect of Harvesting Time on Biomass and Combustion Quality of Miscanthus lutarioriparius in Dongting Lake Area

Biomass energy is increasingly recognized as a promising alternative to conventional energy sources, offering potential sustainability and environmental benefits. Miscanthus has emerged as a standout candidate within energy crops, with M. lutarioriparius particularly noteworthy. This research delves into the intricate relationship between the timing of harvest and the resulting biomass yield and combustion quality of M. lutarioriparius in the unique coastal wetlands surrounding China’s Dongting Lake. An extensive field experiment was meticulously executed to explore these dynamics, yielding valuable insights comprehensively. (1) First and foremost, the study unearthed a paradoxical trend: delaying the harvest of M. lutarioriparius led to an increase in the stem-to-leaf ratio. However, this apparent benefit was counterbalanced by a noticeable decrease in overall biomass yield, primarily driven by the shedding of leaves as harvest was delayed. Delving into the intricacies of biomass composition, delayed harvests had a significant impact. (2) Specifically, they resulted in marked reductions in water content, ash content, and hemicellulose levels within M. lutarioriparius biomass. The correlation analysis further underscored the importance of cellulose and lignin, with a strong positive relationship between their content and calorific value, while hemicellulose exhibited a highly significant negative correlation. (3) Additionally, the study ventured into the realm of mineral elements within the biomass. Delayed harvesting precipitated a substantial reduction in their content, with notable fluctuations observed in potassium (K) and calcium (Ca) levels. Furthermore, ash content exhibited positive correlations with potassium (K) and silicon (Si) contents, shedding light on the intricate interplay of mineral elements. A notable silver lining emerged despite the reduced biomass yield associated with delayed harvesting. In a holistic assessment, the optimal window for harvesting M. lutarioriparius to maximize fuel quality was pinpointed to span from late November to the conclusion of January in the subsequent year. This nuanced understanding of harvesting timing can play a pivotal role in optimizing the utilization of M. lutarioriparius as a valuable energy resource.

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来源期刊
Solid Fuel Chemistry
Solid Fuel Chemistry CHEMISTRY, MULTIDISCIPLINARY-ENERGY & FUELS
CiteScore
1.10
自引率
28.60%
发文量
52
审稿时长
6-12 weeks
期刊介绍: The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.
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