Top Soil |
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.
In soil classification systems, topsoil is known as the "A Horizon,"
therefore, it is the very top layer.
A variety of soil mixtures are sold commercially as topsoil, usually
for use in improving gardens and lawns, (e.g. container gardens,
potting soil).
A major environmental concern known as topsoil erosion occurs when
the topsoil layer is blown or washed away. Without topsoil, little
plant life is possible. The estimated annual costs of
public and environmental health losses related to soil erosion
exceed $45 billion. Conventional agriculture encourages the
depletion of topsoil because the soil must be plowed and replanted
each year.
Sustainable techniques attempt to slow erosion through the use of cover crops in order to build organic matter in the soil. The United States alone loses 2 billion tons of topsoil per year. This is of great ecological concern as one inch of topsoil can take 500 years to form naturally.
The products and services provided by A1-SandRock, Inc are provided with the up-most quality and delivered in a timely fashion. Contact Us with any question or for further information.
