Geography
Answer
Soil conservation means prevention of soil loss from erosion or prevention of reduced fertility of soil caused by over-use, acidification, salinisation or other types of soil contamination.
Two measures taken to conserve soil are:
- Terrace farming — Terraces act as bunds and prevent soil erosion by running water.
- Contour Ploughing — Ploughing along contours on a slope prevents soil erosion by running water.
Related Questions
Name the following:
(a) This soil is sticky when wet and cracks when dry.
(b) This soil is mainly used for making bricks.
(c) This soil is classified into khadar and bhangar.
(d) When heavy rainfall washes away the topmost layer of the soil.
Give geographical reasons for the following:
(a) Black soil is a residual soil.
(b) Red soils are generally infertile.
(c) Alluvial soil differs in texture.
Mention any two characteristics of Tropical Evergreen forests.
Name the forest which is found in the delta of the river Ganga. Name two trees which are found here.