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活跃的微生物种群动态和生命策略推动了高有机物质土壤中碳利用效率的提高

Qicheng Xu^1,2, Ling Li¹, Junjie Guo¹

¹Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, China.

|February 20, 2024

概括

有机肥料通过提高微生物碳利用效率 (CUE) 来增强土壤碳储存. 通过增加微生物多样性,增长率和转向生物质生产来实现这一目标,促进了更大的碳捕获潜力.

科学领域:

土壤科学土壤科学
微生物学微生物学
环境科学环境科学

背景情况:

微生物碳利用效率 (CUE) 对于土壤碳储存至关重要,但其对长期施肥的反应仍然不清楚.
了解微生物对施肥的适应是可持续的土壤管理和气候变化缓解的关键.

研究的目的:

研究长期矿物或有机肥如何影响微生物群落动态和土壤中碳利用效率 (CUE).
确定微生物种群动态和生命策略对CUE和土壤碳捕集潜力的影响.

主要方法:

使用H218O定量稳定同位素探测与元基因组测序相结合.
分析的土壤经过35年的连续矿物或有机肥.

主要成果:

经过长期有机肥化的土壤表现出更高的微生物CUE,这表明生物质形成和碳封存更有效.
有机受精促进了多样化的活跃微生物群落,增加了净生长率和合成代谢偏向的碳循环.
这些因素共同促进了增强的CUE和更大的碳分配到微生物生物质的呼吸.

结论:

长期的有机肥料促进微生物生命策略,提高碳利用效率和土壤碳封存.
微生物种群动态和生命策略对于预测土壤CUE和微生物介导的碳封存至关重要.
这些发现为操纵微生物群落提供了洞察力,以增加土壤碳捕集潜力.

关键词:

碳使用效率的碳使用效率.生活策略,生活战略.有机肥有机肥有机肥人口动态人口动态 qSIPIP 的意思就是QSIP

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