Articles tagged with Topsoil
Recent research from the American Meteorological Society reveals a false global heat record, suggests that severe weather events are increasing in frequency, and predicts an expansion of fire-prone areas. The study also examines the impact of cold wakes on tropical cyclone rainfall and finds that they intensify with global warming.
A research team finds that local community members are indispensable partners in enhancing community engagement in repairing damaged ecosystems. Local values and attitudes play a crucial role in promoting sustainable ecosystem management practices.
A new study published in Earth's Future predicts that adopting sustainable 'no-till' or 'low-till' practices can stop Midwest topsoil loss in its tracks, reducing erosion by 95% over the next 100 years. This could save billions of dollars and mitigate crop productivity losses due to soil erosion.
The US has lost 57.6 billion tons of topsoil due to farming practices, but new research suggests no-till methods can drastically reduce erosion and extend fertility for centuries. No-till farming, currently practiced on 40% of Midwest cropland acres, can modelled to slow down soil loss.
A $5 million grant from the USDA Natural Resources Conservation Service supports a Climate-Smart Sustainability Certificate program for small-scale farmers. The program aims to improve crop production while reducing greenhouse gas emissions and increasing carbon removal.
A new study led by UMass Amherst finds that human-caused erosion in the US Midwest has lost nearly double the average sustainable rate, with plowing identified as the major culprit. The team's research estimates that the region has lost approximately 57.6 billion metric tons of topsoil since farming began 160 years ago.
A geologist from the University of Texas at Arlington is investigating the origin and climate importance of loess, a sediment formed by wind-blown dust, in Montana, Wyoming, and northeast Colorado. Her research aims to identify the sediment's source, when it appeared, and the climate changes that caused it to form.
A study analyzing 40 years of topsoil data finds that approximately 11.73 million square kilometers of land were affected by salt accumulation between 1980 and 2018. The likelihood of reoccurring salt-affected soils decreased globally, but certain regions like Brazil and Peru experienced increased soil salinity.
Researchers found that small forest remnants on farmland can store more carbon in the topsoil layer and host fewer ticks than larger forests. These tiny woodlands also provide benefits for roe deer populations and offer a lower risk of contracting tick-borne diseases.
Researchers discovered a 44% decrease in topsoil lead between 1999 and 2017 and a 64% decline in children's blood lead levels between 2000 and 2016. These findings suggest a link between reduced soil lead and lower blood lead levels in children.
A study found that higher lead levels in topsoil significantly increase the probability of cognitive difficulties in 5-year-old boys, while 5-year-old girls are less affected. The researchers used instrumental variable methods to estimate the causal effect of exposure to lead in topsoil on cognition.
A new study by Carnegie Mellon University researchers found that exposure to lead in the air and topsoil is associated with lower fertility rates among US women and men. The study analyzed data from the 1970s to 2000s and found that reduced airborne lead levels boosted fertility, while higher levels of lead in soil decreased it.
A UMass Amherst geologist is using satellite photos and high-resolution images to estimate topsoil loss in the Midwest, a challenge that has uncertainties about its extent. The research aims to identify areas where farm practices can be changed to reverse soil loss, with potential economic benefits for farmers.
A UAE research team discovered significantly lower background radiation levels in agricultural topsoil compared to the global average. The study, published in Current Nutrition & Food Science, used gamma-ray spectrometry to measure radiation levels in 145 farm locations across the country.
Researchers studied the impact of reforestation on carbon sequestration in US topsoils and found that lands undergoing reforestation store increased topsoil carbon. These lands are predicted to sequester 1.3-2.1 petagrams of carbon within a century, offsetting approximately 1% of annual US greenhouse gas emissions.
Research from the University of Missouri found that claypan farmers need to apply less potassium and more phosphorus than generally recommended due to the soil's unique characteristics. This can help reduce nutrient losses and improve crop growth.
A University of Missouri study found that switchgrass can improve soil quality and be grown on farms with lost fertile topsoil. The perennial plant enhances water permeability, leading to increased crop production in previously challenging areas.
A joint study across the central Great Plains found that no-till farming stores more soil carbon, binding particles together and reducing vulnerability to raindrops. This makes the topsoil less susceptible to erosion by water or wind, critical in semiarid regions with low precipitation and high evaporation.
Researchers at Purdue University have developed a process to make topsoil from coal ash, yard waste and industrial byproducts. The resulting soil is nutrient-rich and outperforms local topsoil in terms of yield.