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Q115 (CDS-I/2010) Environment & Ecology › Ecology & Ecosystem Basics › Sustainable agriculture Answer Verified

Which among the following are the major reasons behind preferring Eucalyptus tree in the planned forestation process ? 1. Plantation grows very fast. 2. Plantation makes the soil more fertile. 3. Wood from Eucalyptus tree is easily converted into pulp for paper industry. Select the correct answer using the code given below:

Result
Your answer: —  ·  Correct: B
Explanation

Eucalyptus is preferred in planned forestation primarily due to its rapid growth and industrial utility. It is recognized as one of the fastest-growing tree species globally, making it a favorite for social forestry and commercial plantations [t2, t5]. Its wood is highly valued in the paper and pulp industry because of its high fiber content and efficiency in producing high-quality pulp [t3, t4]. However, the claim that it makes soil more fertile is incorrect. Evidence indicates that Eucalyptus plantations often lead to soil degradation, nutrient depletion, and reduced soil moisture [c1, c4, t4]. It is known for being water-exhaustive and can adversely affect the underground water table [c1]. Furthermore, its allelopathic properties and high nutrient exploitation can make land unproductive for other crops [c4, t1, t5]. Therefore, only statements 1 and 3 are valid reasons for its preference.

Sources

  1. [1] https://www.sciencedirect.com/science/article/abs/pii/S0378112722002092
  2. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 5: Natural Vegetation and National Parks > Agro-Forestry > p. 36
  3. [3] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 10: Locational Factors of Economic Activities > Demerits of Social and Agroforestry > p. 27
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