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Alluvial Floodplain Ecosystems and their Conservation Challenges

PYQs

6

Articles

1

Momentum

17

Phase IFoundation

Background

Overview

UPSC frequently examines the ecological significance of various ecosystems, threats they face due to anthropogenic activities, and the policy/conservation measures required for their protection, often using specific examples.

Alluvial floodplains are dynamic riverine ecosystems formed by sediment deposition, characterized by rich biodiversity and crucial ecological functions like water regulation, nutrient cycling, and supporting unique flora and fauna, including dense grasslands vital for species like the pygmy hog.

Phase IIStatic core

Facts & tables

Key facts

Ecological Importance

Support unique biodiversity, act as natural flood buffers, and provide fertile agricultural lands.

Indicator Species

Decline of species like the pygmy hog signals severe degradation of these ecosystems.

Major Threats

Land conversion (agriculture, infrastructure), invasive species, altered hydrological regimes (flood control), unscientific burning, and habitat fragmentation.

Conservation Strategies

Focus on habitat restoration, creation of buffer zones, and integrated management plans involving local communities.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaBiodiversity Conservation & Protected Areas
Conceptual areaEnvironmental Law & Policy

Reference table

Institutions & roles

BodyRole
Assam governmentImplements
Durrell Wildlife Conservation TrustResearches
Pygmy Hog Conservation ProgrammeImplements
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Conceptual understanding

Quick revision

  • Alluvial floodplains are critical riverine ecosystems.
  • Threats include land conversion, invasive species, altered flood cycles.
  • Pygmy hog is an indicator species for floodplain health.
  • Conservation involves habitat restoration and buffer zones.
  • Genetic diversity is a concern in captive breeding.

High-confidence PYQs

2024Factual recall, Conceptual understanding

One of the following regions has the world's largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and...

Environment & EcologyOpen question
2021Multi-statement analysis, Conceptual understanding

The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is gener...

GeographyOpen question
2015Factual recall, Conceptual understanding

In India, in which one of the following types of forests is teak a dominant tree species?

GeographyOpen question
2014Statement-based questions, Factual recall

Consider the following pairs |Wetlands|Confluence of rivers| |-- |--| |1. Harike Wetlands | Beas and Satluj/Sutlej| |2. Keoladeo Ghana National Park|Banas an...

Environment & EcologyOpen question

Which of the following have coral reefs? 1. Andaman and Nicobar Islands 2. Gulf of Kutch 3. Gulf of Mannar 4. Sunderbans Select the correct answer using the...

Environment & EcologyOpen question

Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using th...

GeographyOpen question
2014Multi-statement analysis, Factual recall

Consider the following pairs |Wetlands|Confluence of rivers| |-- |--| |1. Harike Wetlands | Beas and Satluj/Sutlej| |2. Keoladeo Ghana National Park|Banas an...

Environment & EcologyOpen question

Which of the following have coral reefs? 1. Andaman and Nicobar Islands 2. Gulf of Kutch 3. Gulf of Mannar 4. Sunderbans Select the correct answer using the...

Environment & EcologyOpen question

Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using th...

GeographyOpen question
2014Statement-based questions, Conceptual understanding

Consider the following pairs |Wetlands|Confluence of rivers| |-- |--| |1. Harike Wetlands | Beas and Satluj/Sutlej| |2. Keoladeo Ghana National Park|Banas an...

Environment & EcologyOpen question

Which of the following have coral reefs? 1. Andaman and Nicobar Islands 2. Gulf of Kutch 3. Gulf of Mannar 4. Sunderbans Select the correct answer using the...

Environment & EcologyOpen question

Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using th...

GeographyOpen question

Topic timeline

Biodiversity Conservation & Protected AreasEnvironmental Law & Policy
Prelims 2014· Statement-based questions, Factual recall

Consider the following pairs |Wetlands|Confluence of rivers| |-- |--| |1. Harike Wetlands | Beas and Satluj/Sutlej| |2. Keoladeo Ghana National Park|Banas an...

Open question

Which of the following have coral reefs? 1. Andaman and Nicobar Islands 2. Gulf of Kutch 3. Gulf of Mannar 4. Sunderbans Select the correct answer using the...

Open question

Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using th...

Open question
Prelims 2014· Multi-statement analysis, Factual recall

Consider the following pairs |Wetlands|Confluence of rivers| |-- |--| |1. Harike Wetlands | Beas and Satluj/Sutlej| |2. Keoladeo Ghana National Park|Banas an...

Open question

Which of the following have coral reefs? 1. Andaman and Nicobar Islands 2. Gulf of Kutch 3. Gulf of Mannar 4. Sunderbans Select the correct answer using the...

Open question

Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using th...

Open question
Prelims 2014· Statement-based questions, Conceptual understanding

Consider the following pairs |Wetlands|Confluence of rivers| |-- |--| |1. Harike Wetlands | Beas and Satluj/Sutlej| |2. Keoladeo Ghana National Park|Banas an...

Open question

Which of the following have coral reefs? 1. Andaman and Nicobar Islands 2. Gulf of Kutch 3. Gulf of Mannar 4. Sunderbans Select the correct answer using the...

Open question

Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using th...

Open question
Prelims 2015· Factual recall, Conceptual understanding

In India, in which one of the following types of forests is teak a dominant tree species?

Open question
Prelims 2021· Multi-statement analysis, Conceptual understanding

The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is gener...

Open question
Prelims 2024· Factual recall, Conceptual understanding

One of the following regions has the world's largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and...

Open question

Hog in the limelight: On Assam’s pygmy hog programme

17 Sep 2026 · Alluvial floodplains are vital, biodiverse ecosystems facing severe degradation from human activities; their conservation is critical for ecological balance and species survival, exemplified by the pygmy hog.

Read article

Related topics

Current topic

Alluvial Floodplain Ecosystems and their Conservation Challenges

Practice writing on this topic

UPSC has asked 6 linked questions on Alluvial Floodplain Ecosystems and their Conservation Challenges in Mains. Write an answer to one — and get it evaluated.

See Mains PYQsEvaluate an answer

UPSC Prelims PYQs on Alluvial Floodplain Ecosystems and their Conservation Challenges

Practice official previous year questions asked by UPSC related to this concept.

The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is gener...

2021·Geography
Solve

Consider the following pairs |Wetlands|Confluence of rivers| |-- |--| |1. Harike Wetlands | Beas and Satluj/Sutlej| |2. Keoladeo Ghana National Park|Banas an...

2014·Environment & Ecology
Solve

One of the following regions has the world's largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and...

2024·Environment & Ecology
Solve

In India, in which one of the following types of forests is teak a dominant tree species?

2015·Geography
Solve

Which of the following have coral reefs? 1. Andaman and Nicobar Islands 2. Gulf of Kutch 3. Gulf of Mannar 4. Sunderbans Select the correct answer using the...

2014·Environment & Ecology
Solve

Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using th...

2014·Geography
Solve

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