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HOT DESERTS (Climate Charecteristics (Soil (Top layer - Thin, humus…
HOT DESERTS
Climate Charecteristics
Deserts are dry because the air that blows over them is dry. the air between 15 - 30 degrees north and south of the equator is warm and sinking
The temperature is very hot in the day but cools quickly at night because when the source of heat (sun) is gone the ground cools quickly and there is no cloud cover to act as a blanket to trap the heat
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Soil
Top layer - Thin, humus-mineral mixture
Root layer - Thick, dry,containing variable accumulations of clay, calcium carbonate and soluble salts
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Causes of deforestation
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Population growth
Food crops are planted more which takes nutrients out of the soil and removes the natural vegetation #
This means the sun can get straight to the ground and crack/bake it# #
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More animals are grazed and they eat more of the area and reduce its vegetation. #
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Desertification is the process by which land becomes drier and degraded, as a result of climate change, human activities or both.
Thar desert case study
Challenges
Extreme tempreture
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Over 50°C in the summer day, below 4°C in a winter night
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Water supply
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Low annual rates of rainfall, high Temperatures and strong winds all cause high levels of evaporation.
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Adaptations
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animals
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Jorboa
found in Aisa, Sudan, Israil and morocco.
Eats seeds, insects and plants
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