Advertisements
Advertisements
Question
What is meant by the terms ‘soil erosion’ and ‘soil conservation’?
Advertisements
Solution
Soil erosion refers to washing away or removal of the layer of soil by various agents like running water and wind.
Sheet erosion and gully erosion are the two most common ways by which soil gets eroded. When there is heavy rainfall, the top layer of soil over large areas gets washed away. This is known as sheet erosion. When rainwater in region flows down the slopes making deep and narrow furrows, it is called gully erosion. Soil erosion also refers to the loss of fertility of soil, which makes the soil infertile and exhausted.
Cutting down the trees and forests, overgrazing by animals, floods, and improper farming practices are some of the main causes of soil erosion.
Soil conservation is the protecting of soil against erosion and exhaustion by planting trees, shrubs and grass on hill slopes.
Soil can be conserved by controlling grazing of cattle and use of proper farming methods such as the levelling of fields, terracing of hill slopes, construction of mud walls or bunds and ploughing fields in circles.
APPEARS IN
RELATED QUESTIONS
Distinguish between the following pair
Soil erosion and soil conservation
Give geographical reason:
There is a need for soil conservation.
Name any four agents of erosion.
Form pairs or groups of three or four students and discuss, with examples, how we depend directly and indirectly on soil.
Soil conservation measures are mainly aimed at protecting which of the following?
Unscramble the following jumbled word related to soil.
\[\boxed{\text{G}}\]\[\boxed{\text{I}}\]\[\boxed{\text{N}}\]\[\boxed{\text{R}}\]\[\boxed{\text{H}}\]\[\boxed{\text{E}}\]\[\boxed{\text{T}}\]\[\boxed{\text{W}}\]\[\boxed{\text{E}}\]\[\boxed{\text{A}}\]
Unscramble the following jumbled word related to soil.
\[\boxed{\text{A}}\]\[\boxed{\text{T}}\]\[\boxed{\text{O}}\]\[\boxed{\text{N}}\]\[\boxed{\text{I}}\]\[\boxed{\text{E}}\]\[\boxed{\text{R}}\]\[\boxed{\text{P}}\]\[\boxed{\text{C}}\]\[\boxed{\text{L}}\]
A man digging a pit found that he could dig with ease initially but digging became difficult as he went deeper. He could not dig beyond a depth of 5 feet. Provide a suitable scientific explanation.
Locate the following zones given as boxed items in figure which shows a diagram of soil profile.
| Topsoil, Subsoil, C-horizon, Bedrock |
Match the animals in Column I with their natural place of dwelling (habitat) in Column II.
| Column I | Column II | ||
| (a) | Earthworm | (i) | Sand and beaches |
| (b) | Garden lizard | (ii) | Burrows in soil |
| (c) | Crab | (iii) | Deep, narrow holes in dry soils |
| (d) | Rodents | (iv) | Surface of soil |
| (e) | Scorpion | (v) | The surface of shaded moist soils |
| (f) | Snails and slugs | (vi) | A horizon of moist soils |
