Tag: topsoil

Topsoil is the upper, outermost layer of soil, usually the top 2 inches (5.1 cm) to 8 inches (20 cm). It has the highest concentration of organic matter and microorganisms and is where most of the Earth’s biological soil activity occurs. It also houses many organisms.

Landfill Challenges Accepted

Landfill Challenges Accepted

Today’s municipal solid waste (MSW) landfills are much more than places to dump household trash. They’re engineered facilities that are designed to hold and isolate the trash from the environment and are governed by both federal and state regulations.

Revegetating After a Wildfire

Revegetating After a Wildfire

It was in June 2013 that the 3,200-acre Royal Gorge fire broke out near Cañon City, CO, situated about 45 miles southwest of Colorado Springs. The wildfire destroyed almost everything in its path (48 out of 52 structures in Royal Gorge Park were lost), although surprisingly it spared the Royal

Techniques for Stabilizing Slopes

Techniques for Stabilizing Slopes

From stabilizing failing slopes to creating new slopes, erosion control contractors are turning to new technologies as well as relying on the tried and true in a number of projects throughout the US.

Slope Stabilization Techniques

Slope Stabilization Techniques

From stabilizing failing slopes to creating new slopes, erosion control contractors are turning to new technologies as well as relying on the tried and true in a number of projects throughout the US.

Growing It Back

Growing It Back

It was in June 2013 that the 3,200-acre Royal Gorge fire broke out near Cañon City, CO, situated about 45 miles southwest of Colorado Springs. The wildfire destroyed almost everything in its path (48 out of 52 structures in Royal Gorge Park were lost), although surprisingly it spared the Royal

Managing for Drought

Managing for Drought

The mania for a green lawn, or in some cases green anything, across many regions of the US has been quelled by recent droughts (thankfully now abating). Even long before water meters were spinning at record rates for golf resorts, private homes, and corporate campuses, scientists have been devising technologies

Carbon Farming

Carbon Farming

Some farmers are working with—and getting paid for—a new kind of crop, although it doesn’t result in a saleable product and, in fact, results in a net loss: of carbon. Grants are now available in Marin County, CA, to encourage “carbon farming,” or sequestering carbon in the soil through various

Geogrids for Stabilizing Steep Slopes

Geogrids for Stabilizing Steep Slopes

The steep slopes and compressible soils caused concern that the road might, sometime in the future, shift and even crack if precast concrete panel retaining walls were used. Florida Department of Transportation (FDOT) officials suggested that 1:1 slope reinforcement with geogrid be used instead.

Managing Daily Cover and Drainage at MSW Landfill Sites

Managing Daily Cover and Drainage at MSW Landfill Sites

Today’s municipal solid waste (MSW) landfills are much more than places to dump household trash. They’re engineered facilities that are designed to hold and isolate the trash from the environment and are governed by both federal and state regulations.

Landfill designers and operators face two main challenges to the integrity of

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