To put it simply: we need food. And with the exception of seafood, we have good topsoil to produce nutritious food. We also need topsoil to allow the vegetation to remain stable and strong in its place. Thus, the health of our soil is one of the most critical factors in maintaining health of our planet.

This fertile top soil is called topsoil is the upper surface of the Earth's crust. And there is much that topsoil we are talking about. It is not deeper than about eight inches (20 centimeters).

Thus, a good whack with a shovel or a pick, can putting the depth of topsoil. What makes this thin layer of topsoil, as required, compared with the ground below?

From the Earth topsoil mixed with humus-rich minerals and composted material result in a nutritious substrate for plants and trees.

Plants and trees grow, of course, even if the soil is not rich, but the best quality of topsoil, the best quality 'product' – the vegetation or food – growing it. And the best quality of food we eat, the healthier we are.

Or in other words, when you think about your health, you should worry about the nutritional qualities of food. Potatoes, apples, spinach or any other foods that grow in rich soils have more nutrients than the same elements that grow in depleted soils.

So if you're worried about this, then you should consider how healthy or nourishing your soil is.

Thus the upper soil layer represents a delicate nutritional balance. And the results of healthy topsoil on healthy eating and a healthy environment in general.

The sensitive nature of the topsoil was misunderstood until recently.

An example of the dangers of ignoring the topsoil occurred in the years before the Great Depression in the U.S. in the 1930s. Until then, farmers in crop rotation to create a better crop yields, but did not understand the process they were trying.

So, when economic pressures came full-on 1930s, farmers planted cash crops repeatedly, instead of rotating crops. There just needs too much for some predictable revenue. They needed a cash crop. In the short term, this may have helped farmers, but ultimately, the practice of the topsoil stripped of nutritional value.

As the bare ground does not support the plants, even light winds could pick up the limited remaining topsoil.

The stripping of topsoil, which we call erosion is devastating on the quality of our food, and also the ability of land to retain water.

It has always been the erosion of soil. As part of a natural process, is termed as' the erosion of substance. "Generally, soil erosion removes background at a rate approximately equal to that soil is formed. But" the erosion accelerated soil "- soil loss at a rate much faster that way – is a much more recent.

This accelerated erosion is always the result of the reckless actions of humanity, such as overgrazing or unsuitable cultivation practices. Land is left unprotected and vulnerable. Then for erosive periods of rain or wind storms, the soil can be removed and possibly transported long distances, perhaps into the sea.

The accelerated erosion soil by water and wind can affect both agricultural areas and the natural environment, and is one of the most widespread of today's environmental problems.

According to the BBC, "soil erosion by water, wind and tillage affects both agriculture and natural environment. Soil loss and their impacts, is one of the most important (but probably the least known) of today's environmental problems.

One way to prevent soil erosion and enrich the earth is to use crop rotation as an essential practice. And we must understand why we do it.

Modern agriculture emphasizes sustainable crop rotation. The farmers maintain crop in rotation, to allow the fields lay fallow, and plant nitrogen-fixing plants. Many farmers also plow plant material in the topsoil to enrich the humus and compost spreading.

You can also put the manure into the soil, to be more nutritious and rich.

This delicate nature has not always been misunderstood. For example, in biblical times farmers apparently knew to leave fields unplanted be for one year out of seven years. This allowed the fields to recover their vitality.

Crop rotation mentioned in Roman literature, and referred to by the great civilizations of Africa and Asia. Since the end of the Middle Ages, farmers in Europe for centuries used a rotation of three years, with rye or winter wheat followed by oats or spring barley, then letting the soil rest (fallow) during the third stage. The fact that the rotations made adequate efforts to restore or maintain a productive soil has been recognized by planting spring crops for livestock rather than food grains.

So the next time you look at their land, they only think of her as the "dirt", but remember that the existence of our planet depends on the topsoil.

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