Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q23 (IAS/2012) Environment & Ecology › Climate Change & Global Initiatives › Carbon sequestration and storage Answer Verified

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 ?

Result
Your answer: —  Â·  Correct: C
Explanation

Agricultural practices like contour bunding, relay cropping, and zero tillage significantly contribute to soil carbon sequestration. Zero tillage (or conservation tillage) minimizes soil disturbance, which reduces the mineralization of organic matter and increases soil organic carbon (SOC) stocks [3]. Relay cropping, a form of crop diversification and intercropping, ensures continuous vegetative cover and organic inputs, which are essential for maintaining soil fertility and enhancing carbon storage [4]. Contour bunding, primarily a soil and water conservation measure, helps mitigate erosion and runoff, thereby preventing the loss of carbon-rich topsoil and facilitating the accumulation of carbon stocks [2]. Collectively, these practices are recognized as climate-smart interventions that improve soil structure and sequester atmospheric carbon into the soil, aiding in climate change mitigation [4].

Sources

  1. [1] Indian Economy, Vivek Singh (7th ed. 2023-24) > Chapter 11: Agriculture - Part II > 11.13 Conservation Agriculture > p. 353
  2. [3] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 25: Agriculture > Relay intercropping > p. 358
  3. [4] https://openknowledge.worldbank.org/bitstreams/d601af3a-03f7-5ddc-9ad0-f432a61be1d0/download
  4. [2] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 25: Agriculture > Advantages of Zero tillage > p. 356
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.
50%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

IAS · 2017 · Q71 Relevance score: -0.53

Which of the following practices can help in water conservation in agriculture ? 1. Reduced or zero tillage of the land 2. Applying gypsum before irrigating the field 3. Allowing crop residue to remain in the field Select the correct answer using the code given below :

IAS · 2013 · Q49 Relevance score: -1.20

Contour bunding is a method of soil conservation used in

IAS · 2010 · Q23 Relevance score: -1.22

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 ?

IAS · 2020 · Q13 Relevance score: -1.76

What is/are the advantage/advantages of zero tillage in agriculture ? 1. Sowing of wheat is possible without burning the residue of previous crop. 2. Without the need for nursery of rice saplings, direct planting of paddy seeds in the wet soil is possible. 3. Carbon sequestration in the soil is possible. Select the correct answer using the code given below :

IAS · 2020 · Q20 Relevance score: -2.75

In the context of India, which of the following is/are considered to be practice(s) of eco-friendly agriculture ? 1. Crop diversification 2. Legume intensification 3. Tensiometer use 4. Vertical farming Select the correct answer using the code given below :