Information on desertification

Information on desertification

The first maikhtar in mind when they pass us this word is cracked or land tracts of desert wasteland, fiercely in our imagination that desertification is not only the transformation of productive land to desert lands with the passage of time. Either the land adjacent to the sea, for example, are very far from it.!?.

To answer this question we must first find out:

What is desertification, or defined? And is it the type of one or more

.. What causes!!

The topic;

● What is the definition of desertification!

Defines desertification as "onslaught". No tyranny of the drought on agricultural land or agriculture, and turn it into a wasteland and the long drought caused on the one hand, and human activity is responsible.

And desertification also known as: turning vast fertile and highly productive areas poor in plant and animal life for many reasons we will know her later.

• What types of desertification!

The United Nations has identified four cases of desertification,

And I'll start ballti is more serious:

1. very severe desertification:

It is turning the Earth into a completely unproductive. And cannot be reclaimed only by high costs and limited space often become the reform process agricultural unproductive time. Such as in Iraq and Syria and Jordan, Egypt, Libya, Tunisia, Algeria, Morocco and Somalia.

2. Desertification:

When the spread of undesirable plants, and decline for good plant production by up to 50%, as in the case of land in the East and North West Delta in Egypt.

3. Desertification moderate:

Where good plant production decreases. Small sand dunes consists in the soil and cause salinization of the soil which reduces production by 10-15%, up to 25%, as is the case in Egypt.

4. Desertification slight:

When there is damage to or destruction of a very simple in vegetation and soils, and can be omitted as the Sahara desert and Arabian Peninsula.

• What are the causes of desertification!

The reasons or factors are divided into two categories: natural and human

Firstly natural factors;

-Climate.

-Drought.

-Quicksand.

-High soil salinity.

-Soil creep.

And many also lead to human factors such as:

-Grazing land from depriving her grasses.

Poor irrigation methods.

-Random trees (deforestation).

-Movement of people to cities, leading to the neglect of agricultural land in the countryside.

-The growth of cities and the breadth at the expense of agricultural land (urban creep).

-Soil salinization, erosion.

-Increased population.

-Pollution.

* The desertification not only in agricultural areas, in areas near the sea leads the overuse of underground water to sea-water intrusion of water and high salinity gradually in wells and in the case of irrigation which leads to soil salinization as noted in Kuwait and the United Arab Emirates and Libya. Overall, the continuing pressure on agricultural land and load overload eventually lead to deterioration of their productivity and expanding desertification.

• How can we overcome it!

We can overcome desertification in many ways such as:

-Sand dunes.

-Increase in agricultural land.

-Enacting laws that prevent logging.

-Prevention of pollution of the water and the sea fresh and brackish.

-Introduction of new crops more suited to environmental conditions

Conclusion;

This problem is not related to other terms such as poverty and famine, but also extend to more complex levels of social and psychological problems that stopped efforts from treated State cooperation, stop wars and conflicts, and promote education, desertification and drought, ignorance and backwardness in this disaster.