生物炭协同作用的微生物诱导碳固定的双重作用:二氧化碳固定和改善土壤结构
Qi Zhou1, Tan Wang2, Qingkai Hu3
1School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China.
World journal of microbiology & biotechnology
|December 10, 2025
概括
一个新的生物炭协同微生物诱导碳固定 (BC-MICF) 系统增强了土壤碳封存,改善了土壤结构. 这种创新方法将土壤转化为碳汇,打击气候变化和土地退化.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 生物技术是生物技术.
背景情况:
- 温室气体度上升和土壤退化威胁全球生态系统和人类生存.
- 现有的碳减排和土壤改善技术往往具有诸如单一有效性,操作复杂性和高成本等局限性.
- 迫切需要综合解决方案来解决碳排放和土壤健康问题.
研究的目的:
- 提出和验证一种用于同时固定二氧化碳和改善土壤的新型复合系统.
- 评估生物炭协同作用微生物诱导碳固定 (BC-MICF) 系统的有效性.
- 为缓解气候变化和土地退化提供可持续的技术途径.
主要方法:
- 开发和应用一个综合系统,将生物炭与微生物诱导的碳固定 (BC-MICF) 整合在一起.
- 量化土壤碳固定潜力和速率.
- 评估土壤的结构性质,包括聚合物含量,稳定性,多孔性和营养保留.
主要成果:
- 该BC-MICF系统显著提高了土壤碳固定潜力至17703.8毫克,碳固定率至83.58毫克C•m−2•d−1.1.
- 土壤聚合物含量 (>2毫米) 增加了218%,结构稳定性 (84.07%) 和水稳定性 (48.43%) 显著改善.
- 土壤的多孔度增加了68.94%,提高了水/空气的透性,水/肥料的保留力和耐侵蚀性.
结论:
- 该BC-MICF系统有效地增强了土壤的碳捕获,将土壤从碳来源转化为碳汇.
- 这种综合方法显著改善了土壤结构,水文特性和生态功能.
- BC-MICF系统为应对气候变化和土地退化等相互关联的挑战提供了一个有希望的解决方案.
相关概念视频
Carbon-dioxide Fixation
581
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
581
Environmental Applications of Microorganisms
890
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
890
The Roles of Bacteria and Fungi in Plant Nutrition
46.5K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
46.5K
Microorganisms in Agriculture and Food industry
1.2K
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
1.2K
Metabolism of Chemolithotrophs
707
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.
707
C4 Pathway and CAM
48.5K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
48.5K


