UPSC GS Paper III: Environment - Wetlands, Forests, Mangroves, Conservation, Degradation

Must?Know

• Ramsar Convention (1971, Iran) – intergovernmental treaty under UNESCO; India joined in 1982; designates Wetlands of International Importance based on nine criteria including presence of rare species and support for >1% of waterbird population.
• As of 2023, India has 75 Ramsar sites; largest is Sundarbans (West Bengal), smallest is Renuka (Himachal Pradesh).
• Wetland (Conservation and Management) Rules, 2017 – replaced 2010 rules; established National Wetland Committee under MoEFCC; mandates wetland inventory and integrated management plans.
• National Wetland Inventory and Assessment (NWIA) – conducted by ISRO; mapped over 200,000 wetlands in India using satellite data.
• Chilika Lake (Odisha) – first Indian wetland restored under Ramsar framework; removed from Montreux Record (1993) after successful salinity and biodiversity restoration.
• Keoladeo National Park (Rajasthan) – formerly Bharatpur Bird Sanctuary; inscribed on Montreux Record (1990) due to water scarcity and eutrophication; removed in 2014 after remedial measures.
• Montreux Record – register of Ramsar sites facing ecological changes; maintained under Ramsar Convention; only 3 Indian sites ever listed: Keoladeo, Chilika, Loktak.
• Loktak Lake (Manipur) – only floating national park (Keibul Lamjao) in India; listed in Montreux Record (1993) due to phumdi degradation and Hydropower impact.
• Forest Conservation Act (1980) – enacted under Article 48A and 51A(g); requires central government approval for non-forest use of forest land.
• Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006 – recognizes rights of forest-dwelling communities; conflicts with FCA in diversion of forest land.
• India State of Forest Report (ISFR) 2021 – reports 7,13,789 km² forest cover (21.71% of geographical area); increase of 1,540 km² from 2019.
• ISFR uses satellite data from FSI (Forest Survey of India); defines forest cover as all lands >1 ha with >10% canopy density, regardless of land use or ownership.
• Very Dense Forest (VDF) – canopy density >70%; Moderately Dense Forest (MDF) – 40–70%; Open Forest (OF) – 10–40%; recorded in ISFR.
• Mangrove cover in India – 4,992 km² (ISFR 2021); highest in West Bengal (42.45%), followed by Gujarat and Andaman & Nicobar Islands.
• Sundarbans mangrove – largest mangrove forest in the world; shared between India and Bangladesh; UNESCO World Heritage Site (1987, India); home to Royal Bengal Tiger.
• Mangroves in India protected under Wetland Rules, 2017 and Coastal Regulation Zone (CRZ) Notification, 2011; CRZ-I areas include ecologically sensitive mangrove zones.
• Bhitarkanika (Odisha) – second largest mangrove in India; designated as Ramsar site (2002); breeding ground for saltwater crocodile (Crocodylus porosus).
• Forest Rights Act (2006) – grants Community Forest Resource (CFR) rights; empowers Gram Sabhas to manage and conserve forest resources; implemented in parts of Maharashtra, Odisha, Jharkhand.
• National Mission for a Green India (GIM) – under National Action Plan on Climate Change (NAPCC); aims to increase forest/tree cover on 5 million ha; launched 2014.
• Namami Gange Programme – includes wetland conservation along Ganga; includes restoration of Kumbheshwar and Motichur wetlands in Uttarakhand.
• Wetlands contribute to groundwater recharge, flood control, carbon sequestration; 40% of global species depend on wetland ecosystems.
• Deforestation in Northeast India – highest in Mizoram and Arunachal Pradesh (ISFR 2021); attributed to jhum cultivation, infrastructure, and timber extraction.
• Mangroves reduce coastal erosion and storm surge impact; 2004 tsunami evidence showed villages behind mangroves suffered less damage (e.g., in Tamil Nadu and Andhra Pradesh).
• India’s Nationally Determined Contribution (NDC) – commits to create additional carbon sink of 2.5–3 billion tonnes CO? equivalent through forest and tree cover by 2030.
• National Afforestation Programme (NAP) – under National Mission for a Green India; targets degraded forest lands; implemented through Joint Forest Management Committees (JFMCs).

Difficulty Level

Intermediate – requires integration of legal, ecological, and policy frameworks with current data and case studies; frequent multi-concept questions in UPSC.

Common UPSC Traps

Trap: Ramsar sites are legally protected under Indian law – Fact: Designation is international; domestic protection depends on existing laws like Wetland Rules, 2017 or state regulations (e.g., Chilika Development Authority).
Trap: Forest cover and forest area are the same – Fact: Forest cover is canopy-based (satellite); forest area is legal designation; e.g., plantations on non-forest land count in cover but not in recorded forest area.
Trap: All mangroves are protected under CRZ only – Fact: Also protected under Wetland Rules, 2017, Wildlife (Protection) Act, 1972 (if in protected areas), and state-specific laws (e.g., Tamil Nadu Protected Forests Act).
Trap: Forest Rights Act (2006) promotes deforestation – Fact: It recognizes rights but mandates conservation; Section 3(1)(o) allows community to protect and manage forests; CFR rights support conservation.

Practice MCQs

Question: Which of the following statements about the Ramsar Convention is correct?
A) It mandates legal protection of all designated sites in member countries.
B) India’s first Ramsar site was Keoladeo National Park.
C) The Montreux Record lists wetlands newly designated under the Convention.
D) The Convention was adopted under the aegis of UNEP.
Answer: B
Explanation: Keoladeo National Park was designated in 1981, India’s first Ramsar site.
Why others fail: A is wrong because Ramsar designation does not automatically impose domestic legal protection; implementation depends on national laws.

Question: Consider the following pairs:

1. Bhitarkanika – Odisha

2. Loktak Lake – Meghalaya

3. Renuka Lake – Himachal Pradesh
Which of the pairs are correctly matched?
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2 and 3
Answer: B
Explanation: Loktak Lake is in Manipur, not Meghalaya.
Why others fail: Pair 2 is incorrect; confusion arises due to multiple northeastern wetlands.

Question: The Forest Conservation Act, 1980 was enacted primarily to:
A) Recognize the rights of forest-dwelling communities.
B) Prevent diversion of forest land for non-forest purposes.
C) Promote commercial afforestation by private entities.
D) Establish the Forest Survey of India.
Answer: B
Explanation: FCA, 1980 mandates central government approval for diversion of forest land to non-forest use.
Why others fail: A refers to Forest Rights Act, 2006; FSI was established in 1981 under MoEFCC.

Question: Which of the following best describes 'phumdis' in Loktak Lake?
A) Floating islands of organic soil and vegetation
B) Artificial embankments for flood control
C) Submerged aquatic plants used for biofuel
D) Mineral deposits from river sedimentation
Answer: A
Explanation: Phumdis are heterogeneous masses of soil, vegetation, and organic matter at various stages of decomposition; support Keibul Lamjao National Park.
Why others fail: B refers to bunds; phumdis are natural, not artificial structures.

Question: As per ISFR 2021, which state has the largest mangrove cover in India?
A) Andaman and Nicobar Islands
B) Odisha
C) West Bengal
D) Gujarat
Answer: C
Explanation: West Bengal has 2,112.97 km² mangrove cover, highest in India.
Why others fail: A has high biodiversity but less total cover; Gujarat ranks third.

Question: The National Mission for a Green India aims to:
A) Convert all degraded lands into dense forests
B) Increase forest cover exclusively in the Western Ghats
C) Enhance ecosystem services and carbon sequestration
D) Replace natural forests with commercial plantations
Answer: C
Explanation: GIM aims to improve forest quality, biodiversity, and carbon sink; not limited to cover expansion.
Why others fail: A and D contradict GIM’s focus on ecological restoration, not monoculture.

Question: Which of the following wetlands was removed from the Montreux Record due to successful restoration?
A) Loktak Lake
B) Chilika Lake
C) Wular Lake
D) Sambhar Lake
Answer: B
Explanation: Chilika was listed in 1993 and removed in 2002 after hydrological and biodiversity recovery.
Why others fail: Loktak remains in Montreux Record; Wular and Sambhar not listed.

Last?Minute Revision

• Ramsar Convention adopted in 1971 at Ramsar, Iran.
• India joined Ramsar Convention in 1982.
• First Indian Ramsar site: Keoladeo National Park (1981).
• As of 2023, India has 75 Ramsar sites.
• Chilika Lake removed from Montreux Record in 2002.
• Loktak Lake listed in Montreux Record in 1993.
• Forest Conservation Act enacted in 1980.
• Forest Rights Act passed in 2006.
• ISFR published biennially by FSI.
• ISFR 2021: Forest cover = 21.71% of India’s area.
• Very Dense Forest: >70% canopy density.
• Mangrove cover in India: 4,992 km² (ISFR 2021).
• Largest mangrove: Sundarbans (India and Bangladesh).
• Bhitarkanika declared Ramsar site in 2002.
• National Mission for a Green India launched in 2014.
• Namami Gange includes wetland conservation.
• Wetland Rules, 2017 replaced Wetland Rules, 2010.
• NWIA conducted by ISRO using satellite data.
• Phumdis are floating biomass in Loktak Lake.
• Montreux Record under Ramsar Convention.
• CFR rights under Forest Rights Act empower Gram Sabhas.
• ISFR defines forest cover based on canopy density, not legal status.
• India’s NDC: 2.5–3 billion tonnes carbon sink by 2030 via forests.
• JFM Committees implement NAP.
• CRZ Notification 2011 includes mangrove protection.
• FSI established in 1981.