Visual art turns a page at Axel’s next week with the July 9 opening of H. Keith Wagner’s abstract landscapes in a show titled ...

An international team of scientists with a variety of backgrounds has found evidence that a boomerang found in a cave in ...

Soil, however, is the Earth’s upper crust composed of minerals, organic matter, water, air and microorganisms. Bring in a pot of soil and leave it on the kitchen table and grass may begin to grow.

The soil profile As soils develop over time, layers (or horizons) form a soil profile. Most soil profiles cover the earth as 2 main layers— topsoil and subsoil. Soil horizons are the layers in the ...

While forest soil naturally produces humus, your yard is no forest floor. In residential neighborhoods, leaves get raked up, dead animals aren't left to rot, and humus doesn't always naturally balance ...

Alternatively, colour can be an effective way to split horizons, although compacted layers can occur within the same coloured layer, she notes. Soil porosity Next, look at soil porosity.

You have to think about other factors about the land and the ponding and flooding in the area.” Students must analyze each top layer of soil – called a soil horizon – within their pit and based on ...

Green roof soil needs a specific build-up to work. On the ground, you can take advantage of natural soil horizons. On a roof, you need to create an on-structure soil horizon. In addition, you need to ...

Scientists worldwide have been conducting deep-soil-warming experiments, in which soil layers are deliberately heated to observe how plants, soils, and microbes respond.

With the development of ultra high voltage AC and DC power system, fault current of power plants, substations and convertor station are great than before. Larger grounding grids are needed to meet the ...