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Mangroves in Coastal Resilience - UPSC Environment And Ecology
What is Mangroves in Coastal Resilience in UPSC Environment And Ecology?
Mangroves in Coastal Resilience is a key topic under Environment And Ecology for UPSC Civil Services Examination. Key points include: Mangroves are salt-tolerant trees/shrubs thriving in estuarine/intertidal zones.. They possess unique adaptations like aerial roots and waxy leaves for saline environments.. Mangroves act as vital natural barriers, reducing cyclone and storm surge impacts.. Understanding this topic is essential for both UPSC Prelims and Mains preparation.
Why is Mangroves in Coastal Resilience important for UPSC exam?
Mangroves in Coastal Resilience is a Medium-level topic in UPSC Environment And Ecology. It is tested in both Prelims (factual MCQs) and Mains (analytical answer writing). Previous year UPSC questions have frequently covered aspects of Mangroves in Coastal Resilience, making it essential for comprehensive IAS preparation.
How to prepare Mangroves in Coastal Resilience for UPSC?
To prepare Mangroves in Coastal Resilience for UPSC: (1) Study the comprehensive notes covering all key concepts on Vaidra. (2) Practice previous year questions on this topic. (3) Connect it with current affairs using daily updates. (4) Revise using key takeaways and mind maps available for Environment And Ecology. (5) Write practice answers linking Mangroves in Coastal Resilience to related GS Paper topics.
Key takeaways of Mangroves in Coastal Resilience for UPSC
- Mangroves are salt-tolerant trees/shrubs thriving in estuarine/intertidal zones.
- They possess unique adaptations like aerial roots and waxy leaves for saline environments.
- Mangroves act as vital natural barriers, reducing cyclone and storm surge impacts.
- Bhitarkanika National Park is a prime example, mitigating damage from Cyclone Dana and the 1999 Super Cyclone.
- India's mangrove cover is 4992 sq. Km (0.15% of total area, as per ISFR 2021).
- They are crucial for coastal resilience, biodiversity, carbon sequestration, and local livelihoods.
Mangroves in Coastal Resilience
Medium⏱️ 8 min read
environment and ecology
📖 Introduction
Introduction: Mangroves and Coastal Resilience
Mangroves are vital salt-tolerant trees and shrubs that thrive in the unique environment of estuarine and intertidal regions. These areas are characterized by a mix of freshwater and saltwater, creating a challenging yet rich ecosystem.
Their presence is crucial for coastal resilience, acting as natural barriers against various environmental threats. They form a significant part of littoral forest ecosystems found in tropical regions.
Why Mangroves are in the News: Cyclone Dana
The critical role of mangrove forests in mitigating the impact of cyclones was recently highlighted. Cyclone Dana's landfall near Bhitarkanika National Park and Dhamra Port in Odisha underscored their essential protective function.
UPSC Insight: Recent events like Cyclone Dana provide excellent case studies for questions on disaster management and environmental conservation. Always link current affairs to core concepts.
Despite the anticipation of significant damage, the region experienced less severe impacts, largely attributed to the robust mangrove forest cover of Bhitarkanika. This national park has a proven track record of withstanding major cyclonic events.
What are Mangroves? Definition and Adaptations
Mangroves are defined as a group of trees and shrubs that grow in the coastal intertidal zone. They are specifically adapted to harsh, saline conditions.
Key Adaptations:
- Aerial Roots: Such as prop roots and pneumatophores, which help in respiration in waterlogged, anaerobic soil.
- Waxy Leaves: Reduce water loss and excrete excess salt.
- Salt Glands: Found on leaves to excrete salt.
- Viviparity: Seeds germinate while still attached to the parent tree, increasing survival rates in the harsh environment.
They represent a unique littoral forest ecosystem, flourishing in saline or brackish waters predominantly in tropical regions. Common types include Red mangrove, Grey mangrove, and species like Rhizophora.
Mangrove Cover and Distribution in India
India boasts a significant area under mangrove cover, which is vital for its extensive coastline. These ecosystems are distributed across various states and Union Territories.
Indian Mangrove Statistics (Indian State Forest Report 2021):
- Total Cover: 4992 sq. Km
- Percentage of Geographical Area: 0.15% of India's total geographical area.
Significant mangrove ecosystems are found in states such as West Bengal (Sundarbans), Gujarat, Andaman & Nicobar Islands, Andhra Pradesh, and Odisha.
Overview of Protected Area Management Frameworks
The following table provides a general overview of different management authorities, public access regulations, and legal frameworks governing various types of protected areas in India. While not exclusively about mangroves, this information contextualizes broader conservation efforts.
| Feature | Framework 1 (General Protected Area) | Framework 2 (Tiger Reserve) | Framework 3 (Biosphere Reserve) |
|---|---|---|---|
| Management Authority | Managed by state governments or private organizations. | Managed by the National Tiger Conservation Authority (NTCA) under MoEF&CC. | Managed by the MoEF&CC in collaboration with local communities. |
| Public Access | Generally open to visitors with some restrictions on activities. | Access is regulated to minimize human disturbance; tourism is allowed in designated areas. | Limited public access; primarily for research and education purposes. |
| Legal Framework | Governed by the Wildlife Protection Act, 1972. | Established under the Wildlife Protection Act, 1972 with specific provisions for tiger conservation. | Recognized under UNESCO’s Man and Biosphere Programme; governed by national laws for conservation. |
💡 Key Takeaways
- •Mangroves are salt-tolerant trees/shrubs thriving in estuarine/intertidal zones.
- •They possess unique adaptations like aerial roots and waxy leaves for saline environments.
- •Mangroves act as vital natural barriers, reducing cyclone and storm surge impacts.
- •Bhitarkanika National Park is a prime example, mitigating damage from Cyclone Dana and the 1999 Super Cyclone.
- •India's mangrove cover is 4992 sq. Km (0.15% of total area, as per ISFR 2021).
- •They are crucial for coastal resilience, biodiversity, carbon sequestration, and local livelihoods.
🧠 Memory Techniques
95% Verified Content
📚 Reference Sources
•Indian State Forest Report 2021 (ISFR 2021)
•General knowledge on Cyclone Dana and 1999 Super Cyclone