相关实验视频

Updated: Jun 14, 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

高质量的垃圾对未恢复的土壤碳增加的影响更大,而不是恢复的松树种植园

Shiting Li¹, Yongmeng Jiang¹, Maokui Lyu²

¹Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China.

The Science of the total environment

|September 2, 2024

概括

植被恢复对土壤碳有影响. 高质量的垃圾增加增加了土壤有机碳 (SOC) 增加,特别是在退化土地上,通过提高微生物效率和减少原始化效应 (PE).

科学领域:

土壤科学土壤科学
生态生态学生态生态学
生物地质化学生物地质化学

背景情况:

植被恢复通过垃圾质量变化和原始化效应 (PE) 影响土壤有机碳 (SOC) 动态.
土地恢复和不同的垃圾质量对PE相关碳循环的综合影响仍然不太清楚.

研究的目的:

调查植被恢复和垃圾质量如何影响原始化效应 (PE) 和土壤有机碳 (SOC) 动态.
确定垃圾质量在土地恢复期间调解SOC损失和收益中的作用.

主要方法:

从未恢复的和20年恢复的地点收集土壤.
添加了标有13C的低质量 (高C/N,红素/N) 和高质量 (低C/N,红素/N) 的子.
进行了一项为期150天的实验室化实验,以测量PE和SOC变化.

主要成果:

高质量和低质量的都在恢复和未恢复的土壤中诱导了积极的PE.
低质量的垃圾导致比高质量的垃圾更多的PE,这归因于微生物矿开采.
高质量的垃圾提高了微生物碳使用效率,减轻了通过PE的SOC损失.
高质量的垃圾在未恢复的土地上比恢复的土地获得更大的SOC.

结论:

产生高质量的垃圾的树种对于在退化土地恢复期间管理SOC分解和形成至关重要.
高质量的垃圾投入对改善土壤肥沃性和降解生态系统中的碳捕获特别有益.
垃圾质量的战略选择可以提高土壤碳封存和恢复结果.

关键词:

(13) C 是稳定的同位素.碳使用效率的碳使用效率.退化的土地.叶子垃圾 - 叶子垃圾引入效应的初始化效应亚热带地区亚热带地区

更多相关视频

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter

Published on: March 12, 2013

Design and Operation of a Continuous 13C and 15N Labeling Chamber for Uniform or Differential, Metabolic and Structural, Plant Isotope Labeling

Design and Operation of a Continuous 13C and 15N Labeling Chamber for Uniform or Differential, Metabolic and Structural, Plant Isotope Labeling

Published on: January 16, 2014

相关概念视频

Ecological Succession

Ecological Succession

Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...

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:

Threats to Biodiversity

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...