相关实验视频

Updated: Jul 18, 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

森林再生增加了土壤微生物在退化红色土壤中诱导的总有机碳度,亚热带中国

Yunfang Ke^1,2, Hui Li^1,2, Tianyu Luo^1,2

¹Jiangxi Provincial Key Laboratory of Silviculture, Jiangxi Agricultural University, Nanchang 330045, China.

|August 26, 2023

概括

在退化的红色土壤中重新造林增强了生物碳捕获. 针叶和宽叶混合森林比纯森林更有效地促进土壤总体的稳定性和碳储存.

科学领域:

土壤科学土壤科学
生态生态学生态生态学
环境科学环境科学

背景情况:

生物碳捕获对于缓解气候变化至关重要.
土壤有机碳 (SOC) 动态受土壤微生物和聚合物稳定性的影响.
退化的红色土壤对有效的森林再生和碳储存提出了挑战.

研究的目的:

调查不同复林模式对退化红色土壤中土壤有机碳 (SOC) 封存的影响.
分析土壤聚合物组成,SOC分布和微生物社区生物质之间的关系.
评估各种复林策略在增强碳储存方面的潜力.

主要方法:

选择六种常见的复林模式和三个土壤层在一个退化的红土地区.
确定土壤聚合物的组成和聚合物内的SOC分布.
对土壤物理化学性质和微生物社区生物质的分析.
评估聚合物相关的有机碳储存和聚合物的稳定性.

主要成果:

再造林显著增加了SOC库存的131.28-140.00%.
与纯森林相比,针叶和宽叶混合森林呈现出更高的宏积分比例 (85.48-89.37%) 和更大的SOC积累.
土壤微生物生物质,特别是细菌,通过影响聚合物稳定性,显著影响了SOC分解.

结论:

针叶和宽叶混合森林增强了宏积体的形成和稳定性,导致有机碳的储存增加.
这些混合森林提供了更大的微生物资源和碳来源,促进了更高的碳捕获潜力.
再造林策略对退化的红土生态系统中的土壤健康和碳封存有重大影响.

关键词:

有机碳聚合物有机碳聚合物退化的红土退化.再造林的目的是为了重造林.土壤微生物土壤微生物

更多相关视频

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Published on: November 25, 2016

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

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

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:

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.

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 Carbon Cycle

The Carbon Cycle

Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.