Articles tagged with Soil Carbon
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Researchers have discovered that iron oxide minerals like ferrihydrite employ different chemical strategies to grab and hold onto various types of organic molecules, making them powerful carbon traps. This study provides new insight into how these minerals in soils trap carbon for decades or centuries.
Researchers at Colorado State University found that some tropical forest plants are adapting to drought by growing longer root systems, potentially helping reduce vulnerability. The study's findings suggest flexibility under drying conditions may rescue the forest, but long-term implications remain uncertain.
A new study found that the rate of organic carbon decomposition in soil samples collected across the US differed by up to tenfold, with factors like fungi and iron levels strongly associated with variation. This could improve the accuracy of soil carbon feedback estimates in climate models, leading to more refined projections.
A decade-long study by Chinese Academy of Sciences researchers found that soil microbial communities reorganize to form more stable networks, reducing carbon emissions. Microbial thermal adjustment and efficient microorganisms mitigate the effects of climate warming.
A new study reveals that grassland degradation increases soil microbial diversity while reducing plant richness, leading to a decline in ecosystem functioning and multifunctionality. The research highlights the critical importance of conserving soil microbial communities for sustainable restoration of degraded grasslands.
A study reveals that warming temperatures alone do not lead to increased carbon dioxide emissions from soil. Instead, adding more carbon and nutrients like nitrogen and phosphorus triggers higher CO2 levels released from the soil. This finding highlights the crucial role of microbes in regulating soil carbon cycling.
Research finds that microbial carbon use efficiency rises following abrupt permafrost thaw, driven by shifts in community composition and nutrient availability. This increase may promote the incorporation of microbial-derived compounds into soil, fostering stable carbon formation.
A new study found that global climate conditions affect the spore traits of arbuscular mycorrhizal fungi, influencing their survival, spread, and interaction with plants. The research provides insights into the environmental adaptations of microorganisms, which could guide soil restoration and food production.
Researchers have used a dynamic global wetland water level dataset to assess the spatiotemporal dynamics of wetland carbon sequestration. They found that tropical wetlands contribute 70% to global C sequestration, with South America, Asia, and Africa being the top three continents.
Researchers found that changes in pH levels result in three distinct metabolic states of the community, driven by indigenous biomass activity and nutrient availability. The simple model predicts the activity with just two parameters, offering insights into how soil microbiomes adapt to climate change.
The study found that global surface SOC content is increasing, driven by temperature and precipitation, with vegetation cover playing a crucial local role. Natural carbon sinks alone are insufficient to meet the Paris Agreement's targets, emphasizing the need for human-induced strategies to achieve global carbon neutrality.
A team of researchers has discovered a novel method for capturing carbon dioxide using clay minerals, expanding the portfolio of absorbent materials for addressing climate change. The study, published in The Journal of Physical Chemistry C, found that certain types of clay can selectively absorb CO2 from the air at low humidity levels.
Research by NIOO-KNAW reveals that less intense farming practices, such as reduced ploughing and increased grass-clover mixtures, can improve soil health and multifunctionality in both conventional and organic agriculture. This approach, known as 'productive de-intensification,' aims to retain crop yields while enhancing soil functions.
Researchers have mapped Colombia's eastern lowlands to identify areas of peatlands, a crucial carbon storage system that can help reduce the country's emissions. The study found an estimated 7,370-36,200 square kilometers of peatlands, with potential to store more carbon than all the world's trees.
A novel approach uses a biomass-based carbon aerogel to efficiently treat oily water and sludge, reducing energy consumption and carbon emissions. The material's photothermal conversion characteristics enable effective dehydration of oily pollutants.
A study in Brazil's Caatinga biome found that removing animals from degraded pastures did not restore soil health after three years. Green manure and strategic tree planting are recommended to accelerate ecological recovery. Soils show severe degradation, with carbon loss and decline in holistic soil health index.
Recent studies have shown that most of the terrestrial carbon accumulation occurs in non-living pools, such as soil organic matter and bodies of water. The research team found that around 35 gigatonnes of carbon were sequestered on land between 1992 and 2019, with a 30% increase over the last decade.
A new study led by Colorado State University found that agricultural nitrogen fertilizer is the primary cause of seasonal carbon cycle swings. This discovery adds to scientific understanding of the carbon cycle and could help inform climate change mitigation strategies.
A study by Florida Atlantic University investigated how removing dead wood could reduce wildfire risks and enhance carbon storage. The research found that combining physical harvesting with thinning significantly reduced wildfire risks, while lowering carbon emissions and offering carbon sequestration through products like biochar.
Researchers discovered that fungi construct a lace-like mycelial network that moves carbon outward from plant roots in a wave-like formation. The team used advanced robotics to measure traffic flows and resource trading in the fungal road system, shedding light on how these networks regulate ecosystem function.
Researchers will use airborne GPR and ground-based TEM to collect rich geophysical data, estimating carbon storage and gas emissions in peatlands across a latitudinal gradient. The project aims to reduce uncertainty in these predictions and provide valuable information on how to better protect carbon stocks.
A new study reveals that UK peatland fires are responsible for up to 90% of annual fire-driven carbon emissions, with emissions set to rise by at least 60% if the planet warms by 2°C. Researchers found that rewetting peatlands can help reduce carbon emissions and mitigate climate change.
Scientists at UMass Amherst accurately quantify coastal carbon storage using satellites, revealing 10 million cars' worth of carbon stored in top meter of soil and an additional 15,000-worth each year. The results are crucial for a resilient, low-carbon future, highlighting the potential for salt marshes to mitigate climate change.
A recent report by Colorado State University reveals that the state's forests are emitting more carbon than they absorb, primarily due to insect and disease impacts. The study estimated that Colorado's forests stored 1,558 teragrams of carbon between 2010 and 2019.
This study explores fungal biomass's role in stabilizing carbon in soils, showing a strong correlation between microbial biomass and reactive mineral-associated carbon. Fungal necromass interacts with nanoparticles to further stabilize the carbon after death, proposing a new conceptual model for hypha-mineral interactions.
A new Stanford study suggests refining how we assess natural carbon storage strategies to ensure the technology lives up to its potential as a climate change solution. The researchers propose a two-step evaluation process to unlock additional project value and improve data for predictive modeling.
Researchers identified an unknown family of microbes uniquely adapted to tropical peatlands, with a dual role in the carbon cycle. These microbes can either stabilize or intensify climate change by releasing greenhouse gases like CO2 and methane.
A study co-authored by Yale School of the Environment scientists found that directly measuring soil carbon can provide reliable evidence of how much carbon is being stored. This approach, coupled with suitable study designs, allows for feasible verification of climate-smart practices such as crop cover and reduced tillage.
A new study has found that diversified cropping systems can increase nitrogen supply in the soil, but do not lead to increased soil carbon levels. The study, published in Nature Sustainability, used stable carbon isotopes to analyze soil core emissions and found that decomposition rates were higher in longer rotations.
New research reveals viruses play a significant role in carbon, nitrogen, and phosphorus cycles. Viral aggregation is proposed to describe the accumulation of lytic products in soil/sediment environments.
Long-term drainage increases bound OC% in non-Sphagnum wetlands due to reactive metal oxides, but decreases it in Sphagnum wetlands. This mechanism helps compensate for lost unbound SOC components in non-Sphagnum wetlands.
Researchers have debuted the first comprehensive gene expression atlas of the plant periderm at the single-cell level, providing new insights into phellem cells and their role in carbon storage. The atlas could be used to stimulate growth of the protective periderm in plants facing environmental stress due to climate change.
A global study using teabags to measure carbon release from soil in wetlands found that warmer temperatures led to increased decay of organic matter, reducing carbon preservation. Freshwater and tidal marshes showed the highest potential for carbon storage.
Scientists argue that tree planting at high latitudes will accelerate rather than decelerate global warming due to the unique characteristics of Arctic ecosystems. Large herbivores like caribou may be a more viable nature-based solution to climate change in these regions.
A new study reveals that increasing plant diversity in agriculture can significantly improve soil carbon retention by fostering stronger positive interactions between microbes. This practice not only promotes healthier ecosystems but also offers a viable solution for maintaining crop output while sequestering more carbon in soils.
Researchers will map carbon distribution, identify high-risk areas, and inform fire suppression strategies to maximize carbon storage in the Yukon Flats National Wildlife Refuge. The project aims to address the growing threat of permafrost thaw, which could release 1,700 billion metric tons of carbon.
A study published in eLife reveals that larger arthropods like woodlice and beetles play a crucial role in leaf litter decomposition across diverse habitats and seasons. Decomposition rates are influenced by climate, leaf quality, and decomposer abundance, with macrofauna dominating decomposition in hot, dry regions.
A study at the University of Helsinki found that increasing plant diversity through undersown species can improve soil health and carbon sequestration. The researchers discovered that even small improvements in carbon retention capacity can be significant, as much land has been harnessed for food production.
The UK is investing £170 million in new research and innovation projects to support clean living, tackle climate change, and boost economic growth. The projects will focus on land use transformation, sustainable agriculture, and environmental monitoring.
A recent study, led by Colorado State University researchers, sheds new light on the complex interactions between plants, microbes, and soil nutrients in the Arctic. The findings suggest that long-term changes to the soil can impact carbon storage, with shrubs potentially contributing to keeping more carbon in the ground.
A new study published in Nature Ecology & Evolution found that warmer temperatures and nitrogen fertilization can stabilize soil carbon levels, contradicting earlier predictions. Plant roots and growth add new carbon to the soil, counteracting the loss of carbon due to climate change.
Researchers found that agricultural practices like planting cover crops and agroforestry could reduce greenhouse gas emissions as much as planting new forests by 2050. These methods also enhance agricultural productivity and resilience to climate change, with potential income of up to $235 billion for farmers.
A recent study by the UK Centre for Ecology & Hydrology found that growing maize to produce biomethane on drained peat emits up to three times more carbon dioxide than using natural gas. The production of crops like maize for bioenergy has rapidly increased, leading to a significant expansion of cultivated areas on drained peatlands.
An international study found that as environmental stressors increase, terrestrial ecosystems' ability to resist global change decreases significantly. This is especially true when stress is sustained over time, highlighting the need to reduce global drivers of change.
Researchers found that mature trees increased wood production by an average of 9.8% under elevated CO2 levels, supporting their role as medium-term carbon stores and natural climate solutions. This increase was not accompanied by a corresponding rise in leaf or fine-root production.
A recent study by UT Arlington scientist Nathan D. Brown shows Alaskan land is eroding faster than it can be replaced due to climate change. The team mapped and dated floodplain deposits, determining permafrost extent, to model how permafrost formation varies with air temperature.
Researchers discovered a new mechanism by which iron oxide minerals recycle phosphorus from DNA and RNA molecules, transforming them into bioavailable inorganic forms. This finding uncovers a missing piece of Earth's puzzling phosphorus cycle, highlighting the importance of understanding natural phosphorus recycling mechanisms.
Peatland microorganisms have been found to metabolize polyphenols using alternative enzymes with and without oxygen. This discovery highlights the significance of polyphenols in peatland carbon dynamics and suggests that climate change may release more stored carbon into the atmosphere than previously thought.
A new study reveals that global forests have consistently absorbed carbon dioxide for the past three decades, with tropical forests experiencing a decline in their ability to absorb carbon due to deforestation. However, temperate forests have shown an increase in their carbon sink capacity, largely due to extensive reforestation efforts.
Researchers found that specific basidiomycete yeasts play a key role in stabilizing assimilated carbon, enriching organic carbon content. Glacial recession exposes new landscapes with limited contact with air, light, and nutrients, making them ideal for studying soil formation.
In a study published in PNAS, researchers found that microscopic fungi play a key role in enhancing soil carbon storage in newly formed landscapes created by shrinking Arctic glaciers. The team discovered diverse communities of microbes thriving in the barren soils, and pioneer fungi sequester carbon in the soil.
A new study reveals that climate models overestimate the storage time of carbon in plants, meaning it is released back into the atmosphere sooner than predicted. This has implications for nature-based carbon removal projects and our understanding of the role of nature in mitigating climate change.
A study by Dartmouth College finds that regenerative agriculture's impact on farmers extends beyond financial gain, influencing their relationships and quality of life. By adopting practices like reduced tillage and cover cropping, farmers experience reduced dependence on agrochemicals and improved soil fertility.
Researchers tracked how a mixture of plant waste was metabolized by bacteria to contribute to atmospheric CO2. Microbes respired three times as much CO2 from lignin carbons compared to cellulose carbons, shedding light on the role of microbes in soil carbon cycling and its impact on climate change.
Nitrous-oxide emissions have increased by 40% over the past four decades, resulting in accelerating atmospheric accumulation of this potent greenhouse gas. Agricultural production is the largest source of emissions, and improving practices can help reduce nitrous-oxide emissions and water pollution.
Researchers have discovered ancient termite mounds in Namaqualand, South Africa that date back a staggering 34,000 years. The mounds, which are still inhabited by termites, provide valuable insights into prehistoric climate conditions and natural carbon sequestration processes.
International research team finds that increasing key nutrients like potassium and phosphorus can sustain tropical forest productivity under drought conditions. This study, published in Nature Geoscience, aims to address the potential impact of climate change on these critical ecosystems.
A new study predicts key soil health indicators such as organic matter content and soil texture using standard tests. This can guide fertilization, irrigation, and herbicide decisions, reducing turnaround time by at least half. The models are accurate for fine and medium soils but less so for sandy soils.
Soil carbon dioxide emissions are more sensitive to climate warming in permafrost-collapsed areas, releasing about 5.5 times more CO2 than non-collapsed areas. The study found that thermokarst formation increases the temperature sensitivity of CO2 release.
A 23-year 'megadrought' in the western US is being studied by WVU researcher Steve Kannenberg to understand its effects on natural ecosystems, agricultural systems and human water resources. The research aims to identify areas with depleted groundwater and soil moisture, as well as assess carbon capture and storage in dryland plants.