UPSC CSE Prelims
Question 16
Which of the following best explain(s) the rationale for protecting mangrove ecosystems in the context of climate resilience?
- Mangroves reduce tidal energy and store freshwater, making them ideal sites for paddy cultivation in saline estuarine belts.
- Their salt-sensitive roots filter seawater, making mangroves key to converting coastal land into freshwater aquaculture zones.
- By withstanding tidal surges and offering biomass resources, mangroves function both as natural bio-shields and livelihood bases for rural communities.
Select the answer using the code given below :
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation: Mangroves weaken waves and storm surges, stabilise shorelines, store blue carbon and support fisheries and coastal livelihoods.
Statement-wise Analysis:
Statement 1: Incorrect - Although mangroves reduce wave energy, they do not generally create freshwater conditions suitable for paddy cultivation in saline estuaries.
Statement 2: Incorrect - Their salt-tolerance and salt-exclusion mechanisms do not convert coastal wetlands into freshwater aquaculture systems.
Statement 3: Correct - Mangroves act as natural coastal bio-shields and provide nursery grounds and biomass-based livelihood support.
Option-wise Analysis:
A: Incorrect - Includes unsupported item(s) 1 and omits supported item(s) 3.
B: Incorrect - Includes unsupported item(s) 1, 2 and omits supported item(s) 3.
C: Incorrect - Includes unsupported item(s) 2.
D: Correct - This option includes the supported item(s) and excludes the unsupported ones.