In Persian writings these two words are sometimes synonymous, while desert is generally referred to as dry land, low rainfall, and low water and vegetation.
Different definitions can be used to define the desert from different perspectives, the most important being the following:
From a climatological point of view, a desert is a land with an average annual rainfall of less than 50 mm and no rainfall during the year or years, even if it does not reach the ground (Jenny’s rain) and several years of rainfall within days or days. The hour of precipitation and the annual evapotranspiration rate are about 100 times the annual rainfall. Such as the Lut Desert of Iran, the Arabian Quarter, Sub-Saharan Africa, etc., which can be subdivided into one super-dry desert with annual rainfall of 20 to 50 mm and the second over-arid desert with less than 20 mm of rainfall per year. If the rainfall is between 50 and 100 mm, it is considered as a semi-desert area.
From a botanical point of view, the desert is considered to be a region that, due to the dry climate, is poor in terms of vegetation and largely devoid of vegetation. Geomorphologically, it refers to areas with poor vegetation cover, where water and wind erosion are severe.
From the point of view of United Nations ecologists and experts, the desert refers to an area where there is little biological activity and production such as human, animal, and plant activities. Different definitions can be given to the three living creatures, plant, animal, and human. He said. Vegetation is defined as desert land that is completely devoid of vegetation or less than 10% of vegetation if an area of vegetation is being destroyed and desertification occurs if vegetation in general Disappeared turns into a desert.
Concerning the desert concept, it should be noted that the desert is a specific name for the Sahara desert region of North Africa. The Arabs also refer to the desert, both desert and quadrant, as in Saudi Arabia, but in our desert desert in Iran. We do not say the word desert in the Persian sense does not mean desert, and the people of the countryside call it desert out of ten. The brand in Saharan Iran can be in temperate regions (such as in mountainous areas). In some areas, they say desert areas, even in the geographical definitions of desert and ten, but desert doesn’t make sense.
However, it should be noted that the word desert is not suitable for most arid regions of Iran, and the concept of desert is more appropriate, and the actual desert is said to have a rainfall of less than 50 mm and therefore in terms of vegetation and water much. Is poor.
