Serpentine Soils Current Events | Serpentine Soils News | 2
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Illinois Soil Nitrogen Test Measures Microbial Nitrogen
Contrary to the prevailing view, cereal crops derive the majority of their nitrogen from the soil, not fertilizer. view more (2009-05-12)
Acid Soils in Slovakia Tell Somber Tale
Increasing levels of nitrogen deposition associated with industry and agriculture can drive soils toward a toxic level of acidification, reducing plant growth and polluting surface waters, according to a new study published online in Nature Geoscience. view more (2008-11-18)
Tropical rainforest nutrients linked to global carbon dioxide levels
Extra amounts of key nutrients in tropical rain forest soils cause them to release more carbon dioxide into the atmosphere, according to research conducted by scientists at the University of Colorado (CU)—Boulder. view more (2006-06-21)
Where Is Your Soil Water? Crop Yield Has the Answer
Crop yield is highly dependent on soil plant-available water, the portion of soil water that can be taken up by plant roots. view more (2008-07-02)
Tree Species Composition Influences Nitrogen Loss From Forests
Throughout the world, nitrogen compounds are released to the atmosphere from agricultural activities and combustion of fossil fuels. view more (2009-03-17)
Invititation to the Media - Soils as carbon sinks-a breathing space in the race against global warming?
Can we use land carbon sinks as a way to buy time for the restructuring of our energy generation? "We estimate soil carbon sinks could mitigate 8% of the EU`s emissions if major changes were made in land use and agricultural management ," says Professor David Powlson of IACR Rothamsted. However; How many of the land-use options are practicable?... view more... (2002-06-26)
Tropical Soils Impede Landmine Detection
Use of a metal detector is the most common technique when searching for landmines, which litter the soil in approximately 90 countries around the world. Many of these countries are located in the tropics where intensively weathered soils are prevalent. view more (2008-02-07)
Large source of nitrate, a potential water contaminant, found in near-surface desert soils
A UC Riverside-led study in the Mojave Desert, Calif., has found that soils under "desert pavement" have an unusually high concentration of nitrate, a type of salt, close to the surface. Vulnerable to erosion by rain and wind if the desert pavement is disrupted, this vast source of nitrate could contaminate surface and groundwaters,... view more... (2008-03-03)
Help Students Think like Soil Scientists
Emphasizing cross-disciplinary concepts in teaching soil science courses, such as mass-volume relationships, can help undergraduates learn real-world, problem-solving skills that are crucial to their success in soil science careers. view more (2009-09-29)
Adding high doses of sludge to neutralise soil acidity not advisable
A University of the Basque Country PhD thesis has analysed the application of waste sludge from EDAR (Estación Depuradora de Aguas Residuales - Waste Water Purification Plant) to acid soils which have limited capacity for neutralising the acidity. view more (2009-01-09)
WHEN AN EARTHWORM DOES AS MUCH DAMAGE TO SOILS AS A BULLDOZER
The transformation of wet tropical forest into pastures causes profound changes in the physical structure of soils by favouring compaction. Such densification asphyxiates the soil. It is generally attributed to the compression caused by heavy machinery used for deforestation and in the creation of pastures and subsequently to trampling by cattle.... view more... (1999-05-11)
New-Caledonia: is the chromium present in soil toxic for crop plants ?
Nearly one-third of the surface area of New Caledonia bears outcrops of ultramafic rocks containing high levels of heavy metals, such as nickel and chromium. The soils derived from these formations, bearing high concentrations of these metals, are however poor in mineral elements essential for plant growth, like nitrogen, phosphorus, carbon and... view more... (2003-05-23)
Snails snack on poison metals
SOILS tainted with heavy metals from industrial pollution and sewage sludge may poison organisms that live in the soil far more readily than thought. The finding raises fears that unexpectedly high levels of toxins are getting into the food chain. Contaminated soils are given hazard ratings that are based on the key assumption that organisms can... view more... (2002-12-18)
Nitrogen loss threatens desert plant life, study shows
As the climate gets warmer, arid soils lose nitrogen as gas, reports a new Cornell study. That could lead to deserts with even less plant life than they sustain today, say the researchers. view more (2009-11-09)
Wastewater from the canning industry is not harmful to the agricultural soil
Irrigation with wastewater from the canning industry is not harmful to the quality of agricultural soil and may even, in some cases, improve it. This is the conclusion of Iñigo Abdón Virto Quecedo in his PhD thesis defended at the Public University of Navarre. view more (2004-12-22)
First-ever 'State of the Carbon Cycle Report' finds troubling imbalance
The first "State of the Carbon Cycle Report" for North America, released online this week by the U.S. Climate Change Science Program, finds the continent's carbon budget increasingly overwhelmed by human-caused emissions. view more (2007-11-15)
Ethiopia 27 million years ago had higher rainfall, warmer soil
Thirty million years ago, before Ethiopia's mountainous highlands split and the Great Rift Valley formed, the tropical zone had warmer soil temperatures, higher rainfall and different atmospheric circulation patterns than it does today, according to new research of fossil soils found in the central African nation. view more (2009-10-23)
Are existing large-scale simulations of water dynamics wrong?
Soils are complicated porous media that are highly relevant for the sustainable use of water resources. view more (2008-03-11)
Soil Carbon Storage is Not Always Influenced by Tillage Practices
The practice of no-till has increased considerably during the past 20 yr. Soils under no-till usually host a more abundant and diverse biota and are less prone to erosion, water loss, and structural breakdown than tilled soils. view more (2009-02-26)
Before selling carbon credits, read this
Storing carbon in agricultural soils presents an immediate option to reduce atmospheric carbon dioxide and slow global warming. view more (2007-05-21)
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