Contour bunding is a method of soil conservation used in
[UPSC Civil Services Exam – 2013 Prelims]
(a) Desert margins, liable to strong wind action
(b) Low flat plains, close to stream courses, liable to flooding
(c) Scrublands, liable to spread of weed growth
(d) None of the above
|Soil and Water Conservation Methods
|Used in hilly areas. Earthen embankments are built across the slope of the land, following the contour as close as possible. This helps in reducing the flow of water down the slope.
|Trees and shrubs are planted in areas prone to strong wind action to shield fields against winds.
|Practice in sloppy areas.
|Perimeter runoff control
|Helps in preventing soil erosion by impeding surface flows.
|Mixed cropping and crop rotation
|Helps in soil conservation by preventing the nutrients from getting eroded.
Therefore, option (d) is the correct answer.