Articles tagged with Soil Chemistry
Researchers found that biochar can dramatically reduce erosion by 45% and improve soil's ability to store water, even under intense rainstorms. Biochar also improved soil structure and increased infiltration, making vineyard soils more resilient to extreme weather.
A new study explores how combining biochar with rhizoremediation can greatly enhance soil restoration by breaking down pollutants. Biochar creates a thriving environment where plants and microbes work together to clean the soil naturally, supporting ecosystem restoration.
Researchers found that certain soil minerals can trap dissolved organic matter released from biochar, keeping more carbon in the soil. Low-intensity rainfall helps retain this dissolved carbon within mineral-rich soils, limiting its downward movement and loss.
A two-year field study reveals that biodegradable microplastics, often considered eco-friendly, are reshaping farmfield soils in unexpected ways. Bioplastics PLA reduced stable carbon compounds by 32% while boosting microbial necromass and fungal-dominated soil ecosystems.
A decade-long field study reveals that biochar improves soil structure, fertility, and microbial activity, leading to higher soybean yields. Biochar also reshapes soil microbial communities, promoting beneficial groups and suppressing potential pathogens.
A new review highlights how biochar can capture and reduce nitrate contamination in groundwater, agricultural soils, and wastewater. Biochar offers the advantage of being renewable, affordable, and adaptable to different environmental conditions, with removal efficiencies above 80-90 percent in some cases.
Phosphorus-modified biochar dramatically reduces heavy metal pollution, improving soil quality and microbial communities. The innovation offers a promising approach for cleaning up contaminated farmland and securing the food supply.
A study reveals that climate-driven freeze-thaw and wet-dry cycles control the fate of heavy metals in straw-amended soils, impacting pollution risks. Climate-driven cycles influence the binding and mobility of lead in soil organic matter.
A new type of biochar, phosphorus/iron-doped biochar, has been developed to address both problems at once—immobilizing toxic cadmium in soil while helping trap carbon. The study found that it significantly reduced cadmium mobility and improved carbon retention in the soil.
Biochar enhances soil life and locks away carbon for decades, even centuries. The study found that biochar works better in red soils, where its alkaline nature helps fight acidification and teams up with iron to lock in carbon.
Researchers develop a novel biochar-based catalyst that transforms harmful pesticide residues into ammonium nitrogen, a nutrient essential for plant growth. The approach eliminates pesticide residues from soil while boosting lettuce growth, offering a potential tool for sustainable agriculture.
Researchers have developed a promising strategy to tackle soil pollution using element-doped biochar. The approach involves enhancing plain biochar with elements like nitrogen, oxygen, sulfur, and phosphorus to improve its ability to stabilize heavy metals.
A long-term study in Northeast China's fertile black soils found that biochar improves soil health, stabilizes microbial communities, and increases crop yields when applied at the right rate. The optimal application rate enhances microbial stability and organic matter content, leading to better yields.
Researchers found that highly conductive biochar produces up to 69% more methane in rice soils due to faster electron transfer. The study highlights the importance of biochar's physical properties in determining its impact on greenhouse gas emissions.
Researchers found that prairie dogs and grasshoppers greatly increase soil nutrient availability, with prairie dog towns showing the highest levels of carbon and nitrogen. Grasshoppers also contribute to phosphorus cycling, while larger herbivores consume relatively constant plant biomass.
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 Northwestern University study discovered that organic matter enhances soil's ability to retain water, even in desert-like conditions. Carbohydrates form bridges between organic molecules and soil minerals, locking in moisture that would otherwise evaporate.
Researchers found biochar improved soil's ability to hold nutrients and moisture, giving cotton plants better growth conditions. Biochar also helps improve water quality by keeping nitrates in the soil and out of groundwater.
New research claims adding lime to agricultural soils can remove CO2 from the atmosphere, rather than cause emissions. The study, based on over 100 years of data, shows that the addition of acidity is the main driver for CO2 emissions from soils.
Researchers developed an AI-powered microscope system to measure soil fungi presence and quantity, providing insights into soil health and fertility. The low-cost optical microscopy with machine learning technology can be used by farmers and land managers worldwide.
New research reveals that chlorothalonil, a widely used fungicide, severely impacts insect reproduction and survival in fruit flies, even at low concentrations. The study found a 37% drop in egg production with minimal exposure.
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.
Global soil nitrous acid emissions have increased from 1980 to 2016, contributing to a 2.5% annual rise in the global surface ozone mixing ratio. This can lead to overexposure of vegetation to ozone, affecting ecosystem balance and food crop production.
Researchers developed an AI-based framework to predict grout permeation behavior in heterogeneous soils, outperforming traditional FEM simulations. The model achieved high predictive accuracy of R^2 = 0.849 and processed predictions in under 2 seconds.
CIRES researchers found high levels of methylmercury, a potent neurotoxin, in Boulder's watershed. Climate change is melting glaciers and permafrost, exposing rocks that release sulfate, which increases methylmercury production.
The Mass Query Language (MassQL) tool empowers scientists to uncover previously unknown pollutants in massive chemical datasets. It has identified toxic compounds hidden in plain sight, including organophosphate esters and chemicals from breaking down over time.
A new study reveals that microbes have sophisticated strategies to deal with phosphorus scarcity, shaping how ecosystems function and evolve over long timescales. Microbes act as 'phosphorus gatekeepers', competing with plants for the nutrient while also providing a source of carbon for themselves.
Researchers at Chalmers University of Technology found that biochar significantly reduces DDT uptake by earthworms in contaminated soil, halving the toxin's presence. This method could enable farming on land deemed unusable due to environmental risks.
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.
Researchers found that the presence of a fungus increases the pH of the soil, promoting growth of beneficial bacteria. This interaction could lead to sustainable agricultural practices by harnessing microbial interactions to combat plant diseases.
This study analyzed soil VOC levels and their correlation with soil physical properties, ionome, microbiome, metabolome, and rhizosphere chemicals. The results reveal that soil VOC profiles can be reliable indicators for evaluating soil health in agricultural environments.
A University of Maryland-led study found that burying wood in the right environmental conditions can stop its decomposition and help curb carbon dioxide emissions. The researchers analyzed a 3,775-year-old log and surrounding soil, revealing that it had lost less than 5% carbon dioxide thanks to the low-permeability clay soil.
A new USDA-funded research grant supports the development of sustainable, biodegradable mulch films that can provide nutrients to crops while reducing plastic pollution. The project aims to create durable and effective films that can be used for years without harming the environment.
Researchers have developed a rapid electrothermal mineralization (REM) process that can remediate synthetic chemicals in soil, including per- and polyfluoroalkyl substances (PFAS). The method uses electrical inserts and biochar to heat contaminated soil, converting PFAS into nontoxic minerals.
A recent Illinois-led study found that soil moisture variability remains consistent across growing and non-growing seasons in fields across the Midwest. The research team used sensor measurements and remote sensing data to reveal a stable pattern of dry and wet areas, which can be used to estimate high-resolution soil moisture products.
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 created new maps that accurately describe phosphorus levels in Amazonian soil using artificial intelligence, revealing the region's low concentration of the mineral. This information is crucial for understanding how tropical forests will react to climate change.
Researchers at UH are expanding research knowledge and building a new curriculum for students to address climate change impacts on food crops. They aim to improve plant growth and build resistance against extreme weather events, such as droughts and heat waves.
Researchers at WVU have developed a way to view synthetic DNA at the atomic level, enabling them to understand how to change its structure for enhanced scissor-like function. This breakthrough could lead to new technology for medical diagnoses and treatments, including potential therapies for diseases like retinal degeneration and cancer.
Elevated atmospheric CO2 reduces soil phosphorus availability in rice crops by more than 20%, compromising plant growth and food security. International research team finds 55% of large rice fields in China and India at risk of yield reduction due to phosphorus deficiency.
New research reveals that nitrogen released by gas-powered machines causes dry soil to let go of carbon and release it back into the atmosphere. The study found that excess nitrogen acidifies soils, leading to a loss of carbon stored in association with calcium.
A recent study by CSIC reveals that soil biodiversity is essential for the maintenance of urban greenspaces, supporting various ecosystem functions such as carbon sequestration and water regulation. The study highlights the importance of invertebrates and microbes in these ecosystems, emphasizing their role in maintaining soil health.
A study by the University of Illinois Agroecosystem Sustainability Center provides new insights for quantifying cropland carbon budgets and soil carbon credits. Researchers found that high-accuracy SOC concentration measurements are needed to quantify a cropland carbon budget, but current publicly available soil datasets are sufficient...
Researchers analyzed over 4,500 documents to understand fungal dispersal across spatial scales. They identified four scales of movement, from microscopic to landscape, and found that climate change affects where fungi reside. More data is needed to understand the biodiversity of fungi and their movement in ecosystems.
Researchers have made a surprising discovery that liquid smoke can enhance plant defense against pests and diseases, leading to new farming practices. The study found that sunflowers grown in soil treated with liquid smoke had larger, thicker, and greener leaves and appeared less prone to pests and disease.
A University of Illinois study found tomatoes in Chicago backyard gardens have low levels of lead, making them relatively safe for consumption. However, improper soil handling and lack of washing can still pose health risks. Researchers recommend minimizing dust with heavy mulch and careful fruit washing to safely grow tomatoes.
A recent study by Xi'an Jiaotong-Liverpool University provides a method to help farmers and policymakers decide whether organic farming is beneficial for the environment. The researchers analyzed international studies to find a threshold where organic farming's biodiversity gain outweighs its land requirements.
A team of WVU researchers has developed a biodegradable composite material using cotton fibers from recycled mattresses, with the goal of replacing single-use plastics. The new material will be created through 3D printing and can be used to produce various consumer products, such as beverage straws and disposable packaging.
Researchers at University of Illinois develop new method to accurately estimate soil organic carbon using airborne and satellite hyperspectral sensing. The study leverages machine learning algorithms with a comprehensive soil spectral library, enabling large-scale monitoring of surface soil organic carbon.
Researchers engineered Azotobacter vinelandii to produce ammonia and excrete it into crop plants, reducing water pollution. This approach could mitigate environmental pollution and provide sustainable solutions for nitrogen management in soil.
Researchers at University of Copenhagen find that pharmaceutical residues in sewage sludge and cattle manure do not harm soil organisms, despite concerns over environmental risks. Organic fertilizers like sludge and manure provide better soil quality than conventional mineral fertilizers.
Researchers found that soil pH and total cadmium are key factors controlling cadmium uptake in cacao beans. Liming soils can increase yield while reducing cadmium content, but access to lime may be limited for smallholder farmers.
A new study from the University of Illinois reveals that nearly all soil samples in Chicago contain high levels of lead, with some areas reaching up to 3,000 ppm. The findings highlight the need for further monitoring and mitigation efforts to address environmental justice concerns.
A $19 million research project will investigate the connection between grazing management decisions and soil health, aiming to improve soil resilience and productivity. The project, led by Noble Research Institute, will provide farmers and ranchers with tools to measure outcomes of soil health in grazing land environments.
The Deep Soil Ecotron will enable scientists to conduct experiments on columns of soil up to three meters deep, improving understanding of how deep soil organisms react to unprecedented conditions and sequester carbon. The facility will also be used to develop sensors to monitor deep soils in the field.
A Colorado State University team will research how a deadly citrus disease propagates and can be stopped, supported by a $1.2 million gift from Cutrale. The team aims to understand the spread of the disease and identify effective control methods.
Photonic crystals provide ideal characteristics for the development of instruments with diverse applications. A multidisciplinary research effort at the University of Navarra has led to significant breakthroughs in manufacturing these crystals, paving the way for miniaturization and enhanced nanotechnology.
Jerry A. Bell, a leading educator in chemistry, receives the George C. Pimentel Award for his contributions to making chemistry relevant to everyday life. His new textbook, due to be published in 2001, aims to engage students with real-world applications of chemistry.
Jeff Wheelwright, a renowned environmental writer, has won the American Chemical Society's James T. Grady-James H. Stack Award for Interpreting Chemistry for the Public. His work aims to ease public fears about chemicals in the environment and promote understanding of chemistry.