Articles tagged with Soil Respiration
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Researchers found that warming temperatures may actually reduce nitrogen gas emissions from forest soils in dry conditions, contradicting earlier predictions. The study's findings suggest that moisture levels, not just heat, play a crucial role in determining the fate of nitrogen in forests.
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 study by Ben-Gurion University reveals that desert soils can release powerful greenhouse gases within minutes of being wetted, even without microbial life. The team found that chemical reactions drive these emissions, especially for nitrogen-based gases.
A new study found that long-term biochar application can sustainably boost crop yields by 10.8% and cut greenhouse gas emissions like methane and nitrous oxide by 13.5% and 21.4%. Biochar's benefits on soil health and carbon sequestration are also significant, with increased soil organic carbon content by 52.5%.
Soil microbial diversity decreases in alpine pioneer community degradation, while ecosystem functions initially increase before declining. Fungal communities are more vulnerable to environmental changes than bacterial ones.
The UN reports that over 77.6% of the world's land experienced drier conditions in recent decades, with drylands expanding by nearly a third larger than India. This trend is driven by human-caused climate change and has dire implications for agriculture, ecosystems, and people living in affected areas.
A new study by Dr. Allan Hassaniyan argues Iran's water policy is discriminatory, leading to socioecological deterioration in peripheral regions and causing devastating effects on agriculture, health, and the environment.
A study published in Nature found that warming tundras release more carbon due to increased ecosystem respiration. The experiment revealed a 30% boost in respiration during the growing season, leading to significant changes in soil moisture and temperature.
Soil microbes are releasing more CO2 into the atmosphere due to global warming, with a potential increase of 40% by 2100 in polar regions. The emissions vary across climate zones, with cold polar regions being more sensitive to changes in soil moisture.
A new study reveals that microorganisms can adapt to temperature changes and even benefit from them. The organisms differ in their sensitivity to temperature changes, with bacteria being more sensitive than fungi. This adaptation allows them to store carbon in soil, slowing down global warming.
A new study by Linköping University reveals that climate change alters natural greenhouse gas fluxes from streams and lakes, making landscape carbon sinks less effective. The researchers found that increased precipitation and temperature affect the amount of carbon washed into streams and lakes, leading to greater emissions.
The UN Convention to Combat Desertification's Global Land Outlook 2 report warns that up to 40% of the planet's land is degraded, threatening half of humanity and roughly 1/2 of world GDP. The report offers hundreds of practical ways to restore land and ecosystem health.
Researchers at Virginia Tech have found that key parts of the global carbon cycle used to track movement of carbon dioxide in the environment are not correct. The estimate of how much carbon dioxide plants pull from the atmosphere is critical to accurately monitor and predict the amount of climate-changing gases in the atmosphere.
Studies in Cameroon, Indonesia, and Peru found that forest conversion to agriculture and degradation slows carbon and nitrogen cycles, affecting greenhouse gas flows. Methane removals decreased by up to 47% and nitrous oxide emissions dropped by 52%, but results are equivocal for peatland degradation.
Researchers discovered that elevated CO2 levels stimulate soil respiration under conditions of nitrogen limitation. Elevated CO2 has a deteriorating effect on climate change mitigation in soils deficient in nitrogen.
A OU-led study integrates omics data into ecosystem models to better predict soil carbon loss due to warming-induced adaptation in microbial communities. The findings suggest a more nuanced understanding of the ecological consequences of climate warming.
A new study has provided the first global 'bottom-up' terrestrial carbon budget, estimating a net sink of -2.2 ± 0.6 Pg C y-1 between 2000 and 2009. The study reveals that a significant portion of carbon fixed in terrestrial ecosystems is lost through fires, emissions, and export to rivers, rather than being retained in the soil.
A new study by Colorado State University researchers found that exposure to manure from cows administered antibiotics alters the soil microbiome and ecosystem functions, reduces soil carbon storage, and changes how plants allocate carbon below ground. The findings suggest that widespread use of antibiotics in livestock production has s...
A study found that soil respiration rates increase with temperature up to 25°C, but decrease above this threshold. The Arctic and deserts are most responsive to climate warming due to higher carbon storage in soils.
Researchers at Boston University found that urban soils in metropolitan areas surrounding the city core release significant amounts of CO2 through a process called soil respiration. This discovery highlights the importance of considering biological emissions in assessments of climate action programs.
A new study published in Nature Climate Change reveals that long-term warming has little effect on the storage of carbon in tropical forest soils. The research suggests that warmer temperatures stimulate an increase in leaf litter and underground sources of carbon, offsetting any potential losses in soil carbon.
Soil respiration in China varies significantly across regions, with the highest rates found in southeastern China and lowest in northwestern China. Precipitation and temperature also play a crucial role in controlling soil respiration, with increasing variability expected under warming scenarios.
Researchers analyzed 439 soil respiration studies and found that the total amount of carbon dioxide flowing from soils has increased by about 1-2 percent per year since 1989. The study suggests that higher temperatures are unlocking old carbon, but more boreal data is needed to reach statistical relevance.
Large volcanic eruptions, such as Mount Pinatubo's 1992 eruption, trigger a response in plant ecosystems where they become more efficient at drawing carbon dioxide out of the air. This process is thought to be triggered by reduced direct sunlight allowing plants to photosynthesize more efficiently.