Case base questions resource and development

 PASSAGE

Arid soils range from red to brown in colour. They are generally sandy in texture and saline

in nature. In some

area the salt content is very high and common salt is obtained by evaporating the water. Due

to the dry climate,

high temperature, evaporation is faster and the soil lacks humus and moisture. The lower

horizons of the soil are

occupied by kankar because of the increasing calcium content downwards.The kankar layer

formation is the bottom horizons restrict the infiltration of water. After proper irrigation, these

soils become cultivable as has been in the case of western Rajasthan.

1. What are the 2 components lacking by dry climate in high temperature?

2. The lower horizons of the soil are occupied by what and why?

3. what does the kankar layer formation restrict in the bottom horizons?

ANSWER

1. Human and moisture.

2. The lower horizons of the soil are occupied by kankar because of the increasing calcium

content downwards.

3. The kankar layer formation in the bottom horizons restrict the infiltration of water