相关实验视频

Updated: Jun 9, 2025

Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures

Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures

Published on: October 29, 2016

根据各种有机修正案,土壤有机碳,碳分量和微生物群体

Baojian Wu¹, Meng Zhang¹, Zhen Zhai¹

¹Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450000, China.

Scientific reports

|October 25, 2024

概括

诸如玉米,烟草茎和花生生物炭之类的有机补充剂显著增加了土壤有机碳 (SOC) 和土壤碳分量. 花生生物炭对总有机碳 (TOC) 和微粒有机碳 (POC) 的影响最大.

科学领域:

农业科学农业科学
土壤科学土壤科学
环境科学环境科学

背景情况:

土壤有机碳 (SOC) 对土壤的健康和肥力至关重要.
不同的有机修订对SOC动态和微生物群落的影响需要进一步研究.

研究的目的:

调查玉米 (CS),烟草茎 (TS) 和花生生物炭 (PB) 对土壤碳分量和微生物群落的影响.
阐明有机变化,土壤碳和微生物组成之间的相互作用机制.

主要方法:

实验室化实验超过70天.
对土壤有机碳 (SOC),土壤碳分量 (例如,有机碳颗粒 - POC) 和微生物群落的分析.
曼特分析和结构方程建模 (SEM) 的应用.

主要成果:

所有的修改 (CS,TS,PB) 与控制 (CK) 相比,显著增加了SOC.
在SOC (44.8%) 中,PB显示出最大的增加,其次是TS (17.5%) 和CS (13.9%).
PB,TS和CS显著增加了POC,分别增加了27.4%,20.2%和105.7%.
修改调节了微生物群落,增加了Bacteroidetes和减少了Acidobacteria.
在微生物基因 (cbbL,cbbM),细菌类 (Bacteroidota) 和土壤碳分数 (TOC,POC) 之间发现了强烈的相互关系.

结论:

有机修改有效地提高了土壤的碳分数和土壤的整体肥力.
花生生物炭是提高总有机碳 (TOC) 和微粒有机碳 (POC) 的高效修正案.
修改通过改变微生物社区结构和关键碳相关基因的丰富性来影响土壤碳循环.

关键词:

cbbL 基因基因基因细菌社区的细菌社区生物炭是一种生物炭.土壤微生态学土壤微生态学土壤有机碳土壤有机碳

更多相关视频

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Published on: February 15, 2019

Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

Published on: January 10, 2019

相关概念视频

The Soil Ecosystem

The Soil Ecosystem

Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:

Environmental Applications of Microorganisms

Environmental Applications of Microorganisms

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...

The Roles of Bacteria and Fungi in Plant Nutrition

The Roles of Bacteria and Fungi in Plant Nutrition

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.