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Give reasons, why there is scanty vegetation in the deserts? | Class 7 NCERT - Our Environment ( GEOGRAPHY), SOCIAL SCIENCE


Give reasons, why there is scanty vegetation in the deserts?

( Chapter 9: Life in the Deserts, Class 7- Our Environment ( GEOGRAPHY), SOCIAL SCIENCE)


As we know, hot deserts are very hot and dry, and cold deserts are very cold and dry; in both conditions' growth of vegetation is not favorable. 

The following are some prominent reasons for the scanty vegetation in the deserts:

Limited Water Availability: 

Both Hot and cold Deserts have an arid climate with very low precipitation. Water is a critical resource for plant growth, and the scarcity of rainfall in deserts means that there is insufficient moisture to support dense vegetation.

High Evaporation Rates: 

Desert regions often experience high temperatures and intense sunlight, leading to rapid evaporation of any available water. This further reduces the amount of water available for plants.

Extreme Temperatures: 

Deserts typically have extreme temperature fluctuations, with scorching hot daytime temperatures and cold nights. These extreme temperatures damage plant tissues.

Poor Soil Quality: 

Desert soils are often low in nutrients and organic matter, making it challenging for plants to obtain the essential nutrients they need to thrive.

Salt Accumulation: 

Many desert soils have a buildup of salts, which can be detrimental to plant growth. As water evaporates from the soil surface, salts are left behind, making the soil less hospitable to plants.

Sand and Wind Erosion: 

Strong winds in desert environments lead to soil erosion and exposure to plant roots. This makes it difficult for plants to establish and maintain a stable foothold.

These factors collectively create an unfavorable environment for plant life in deserts, resulting in the characteristic sparse and specialized vegetation that is adapted to survive in these extreme conditions.

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