Question:
If plantation is used in a waterlogged area, the type of drainage is called
If plantation is used in a waterlogged area, the type of drainage is called
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Bio-drainage = High-transpiring trees (Eucalyptus/Casuarina) acting as biological pumps to lower water tables naturally.
Updated On: Sep 4, 2026
- Surface drainage
- Sub-surface drainage
- Mole drainage
- Bio-drainage
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Vegetation-induced drainage utilizes the high consumptive transpiration capacity of deep-rooted tree species to depress shallow water tables.
Key Formula or Approach:
\[ \text{Water Table Drawdown} \propto \text{Transpiration Rate } (T_r) \]
Step 2: Detailed Explanation:
Bio-drainage (Biological drainage) is the reclamation and drainage of waterlogged, saline, or water-congested lands using fast-growing, deep-rooted, high-transpiring tree plantations (such as Eucalyptus tereticornis, Casuarina, Populus, or Acacia nilotica).
The tree root systems act as bio-pumps, absorbing large volumes of groundwater from the saturated zone and releasing it into the atmosphere through transpiration, lowering the phreatic water table without requiring expensive civil drainage channels.
Step 3: Final Answer:
Therefore, using plantation in a waterlogged area is called Bio-drainage, matching option (D).
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