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Desert ecosystems and its Types

 


Desert occupies about 35% of our world's land area. It is characterized by less than 25cm rainfall. The atmosphere is dry and hence it is poor insulator. 

Types of  Desert Ecosystems :

Based on the climatic conditions, deserts are classified into three types. 

1.Tropical deserts 

2.Temperature Deserts

3. Cold Deserts.

Features of different types of deserts 

1. Tropical Deserts

     Tropical deserts are found in 

i.) Africa : Sahara Desert 

ii) Rajasthan : Thar Desert 

     They are characterized by only few species. Wind blown sand dunes are very common. 

2.Temperature Deserts

     They are found in 

     South California: Majave.

     They are characterized by very hot summer and very cool winter time. 

3.Cold deserts 

      They are found in 

      China: Gobi desert. 

      They are characterized by cold winters and warm summers. 

Characteristic Features of Forest ecosystems : 

1. The desert air is dry and climate is hot. 

2. Annual rainfall is less than 25 cm. 

3. The soil is very poor in nutrients and organic matter. 

4. Vegetation is poor, 



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