Related topics: soil

NASA satellite improves pollution monitoring

NASA scientists improved watershed pollution monitoring models by incorporating satellite and ground-based observations of precipitation. The NASA data replaces weather station observations, and will allow states to monitor ...

Scientists question EPA estimates of greenhouse gas emissions

The approach the U.S. Environmental Protection Agency (EPA) uses to estimate greenhouse gas emissions from agricultural anaerobic lagoons that treat manure contains errors and may underestimate methane emissions by up to ...

Tracking phosphorus runoff from livestock manure

Nutrient runoff from livestock manure is a common source of agricultural pollution. Looking for an uncommon solution, a team of scientists has developed an application of rare earth elements to control and track runoff phosphorus ...

Predicting amount of oil in contaminated soils

Scientists are reporting a new technique for mapping and testing oil-contaminated soils. Traditionally, samples need to be collected from the field and returned to a lab for extensive chemical analysis, costing time and money ...

Sources of pollution in waterways

Polycyclic aromatic hydrocarbons (PAHs) are components of petroleum products such as gasoline, coal, and oil. They are also produced as by-products of the combustion of fuels including petroleum and fire wood. PAHs can cause ...

Transport behavior of E. coli varies depending on manure source

Escherichia coli is a commonly used indicator organism for detecting the presence of fecal contamination in drinking water supplies. The importance of E. coli as an indicator organism has led to several studies looking at ...

New tool gets handle on cropland CO2 emissions

For the first time, farmers have data that tracks at the county level on-site and off-site energy use and carbon dioxide emissions associated with growing crops in the United States.

23 years of water quality data from crop-livestock systems

Long-term research is important to understand how land management impacts runoff and erosion, which pose serious threats to soil and water quality worldwide. To better understand these processes in agricultural landscapes ...

Balancing food security and environmental quality in China

In many ways, the evolution of Chinese agriculture over the past 40 years is a remarkable success story. Spurred by investments in research and government subsidies for fertilizers and other farm technologies, China now feeds ...

page 3 from 5