How Climate Change Contribute To The Phenomenon Of Desertification? Causes And Results
January 21, 2010 by Go Green Tips · Leave a Comment
The Factors That Contribute To The Phenomenon Of Desertification (Climate Change):
- High temperature and low rainfall or scarcity of help to speed evaporation and accumulation of salts in the cultivated land (dry periods).
- As the floods washed away the soil and uproot their crops, which threaten soil fertility.
- Sand dune encroachment, which covers the plowing and planting by the wind.
- The high level of groundwater.
- Agriculture, which depends on rainfall.
– Sustaining on water wells for irrigation, and this increases the degree of groundwater salinity over time, raising the degree of soil salinity and desertification.
- Wind cause rapid drying of plants and fading permanent, especially if continued for a long time. In addition, it ruptured and undermining plants, especially shallow-rooted, which lead to the removal of vegetation
In addition the more recent factors that contribute to desertification:
There are many factors that cause desertification, and these factors are intertwined with each other of these factors:
1 - natural factors: that occur without human intervention
2 - change:
Such as lack of rain in general, recurring drought and variation in the amount of annual rainfall distribution and high temperature.
3 - the reasons for the result of human activity:
But the more important is that: These causes can be traced to the following:
Increase in population and thus increase consumption as well as urban development and economic rights, leading to increased exploitation of natural resources to the level of extravagance
And result in the following:
Degradation of vegetation of pastures:
Degradation occurs due to grazing may cut trees and shrubs desired the destruction of forests for the production of timber and other wood industries.
Over-grazing pasture meant that a number or types of animals do not agree with Energy Pasture
Consequently, there is destruction and rapid vegetation in these areas and the concomitant erosion of the soil and the weakness of environmental compensation plant is known to too many animals in these areas a natural outcome of what is controlled by owners of livestock from the traditions and misconceptions invite attention in manpower without regard to any factors or the results of Other than doubled the size of the problem must take into account the expense of load so as not rangeland desertification of the pasture, as well as the spread of weeds and unwanted plants are edible or replaced in the pasture plants and herbs are edible
Desertification leads to the shrinkage of the cultivated area and the migration of population from rural and remote areas to urban cities in search of livelihoods and life
And turn more than 60 thousand square kilometers per year of fertile land or arable land not suitable for production in the world
Weather In Lebanon — Lebanon Daily News
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