Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q49 (IAS/2013) Geography › Indian Physical Geography › Soil degradation and conservation Answer Verified

Contour bunding is a method of soil conservation used in

Result
Your answer: —  Â·  Correct: D
Explanation

Contour bunding is a soil conservation technique primarily used on sloping and hilly lands to control water erosion and runoff [2]. It involves constructing embankments of soil or stones along the contours of the land to reduce the velocity of surface runoff and promote water infiltration. While it is used in semi-arid and sub-humid areas to combat desertification by harvesting runoff [4], it is not specifically defined by its use in desert margins against wind action (which typically requires shelterbelts), nor in low flat plains (where flooding is the issue), nor for scrubland weed control [5]. Since the primary purpose is managing water erosion on slopes rather than the specific scenarios in options 1, 2, or 3, 'None of the above' is the most accurate choice. The method is most effective in hilly terrains where it prevents the formation of rills and gullies [2].

Sources

  1. [1] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > ii) contour Ploughing > p. 19
  2. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 6: Soils > 3. Contour Ploughing and Strip Cultivation > p. 23
  3. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > Desertification and Desert Development Programme > p. 47
  4. [4] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > Desertification and Desert Development Programme > p. 50
  5. [5] https://www.goulburn.nsw.gov.au/files/content/public/v/23/development/environment-heritage/ref-gmc-mcgaws-rd-v1.1-with-attachments.pdf
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
63%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-I · 2014 · Q101 Relevance score: 1.54

Which of the following methods is/are suitable for soil conservation in hilly region? 1. Terracing and contour bunding 2. Shifting cultivation 3. Contour ploughing Select the correct answer using the code given below.

IAS · 2012 · Q23 Relevance score: -1.54

Consider the following agricultural practices : 1. Contour bunding 2. Relay cropping 3. Zero tillage In the context of global climate change, which of the above helps/help in carbon sequestration/storage in the soil ?

IAS · 2010 · Q23 Relevance score: -2.30

With reference to soil conservation, consider the following practices : 1. Crop rotation 2. Sand fences 3. Terracing 4. Wind breaks Which of the above are considered appropriate methods for soil conservation in India ?

CDS-II · 2021 · Q67 Relevance score: -3.21

S had witnessed contour bunding and contour ploughing while visiting one of the States in India. Identify the State from the options given below.

NDA-I · 2014 · Q75 Relevance score: -4.11

Mulching, an agronomic measure of soil- conservation, is very effective because it 1. protects soil from gully erosion 2. protects soil from sheetwash and wind erosion 3. helps soil to retain moisture and nutrients Select the correct answer using the code given below.