"Projected increases in India's forest carbon biomass under climate change scenarios present both an opportunity and a risk for the country's climate commitments and ecological sec

GS3 Environment & Bio-diversity

"Projected increases in India's forest carbon biomass under climate change scenarios present both an opportunity and a risk for the country's climate commitments and ecological security." Critically analyse this statement in light of recent modelling findings, and examine the divergence between dynamic vegetation models and FSI estimates in the context of India's NDC targets.

Examine

  • 15 marks
  • 8 min
  • 250 words
  • Medium

The Hindu

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Introduction

Recent dynamic vegetation model (DVM) projections indicate a potential rise in India’s forest carbon biomass under elevated CO₂ and climate change. While this offers a pathway to meet NDC targets, it also raises ecological and methodological concerns.

Opportunity for Climate Commitments

Enhanced carbon sequestration potential

  • CO₂ fertilization and longer growing seasons may increase biomass.
  • Supports India’s NDC goal of creating an additional 2.5–3 billion tonnes of CO₂-equivalent carbon sink.

Cost-effective mitigation pathway

  • Forest-based sinks are relatively low-cost compared to technological solutions.
  • Aligns with global nature-based solutions agenda.

Risk to Ecological Security

Quality vs quantity trade-off

  • Biomass increase may come from monocultures or invasive species.
  • Undermines biodiversity and ecosystem resilience.

Climate-induced vulnerabilities

  • Increased risks of forest fires, pests, and extreme events.
  • Carbon sinks may become unstable or reversible.

Overestimation risks

  • Model projections may not account for ground realities like degradation and human pressures.

Divergence: Dynamic Vegetation Models vs FSI Estimates

Dynamic Vegetation Models (DVMs)

  • Process-based, climate-driven simulations.
  • Capture future scenarios, CO₂ fertilization, and ecological responses.
  • Tend to project higher biomass gains.

Forest Survey of India (FSI) estimates

  • Based on remote sensing and field inventory data.
  • Reflect current forest cover and carbon stock.
  • Often show modest or uneven growth, including degradation in some regions.

Nature of divergence

  • DVMs are forward-looking and idealized, while FSI data is empirical and present-oriented.
  • Differences arise due to exclusion of anthropogenic pressures in models.

Implications for NDC Targets

Credibility concerns

  • Over-reliance on optimistic models may inflate carbon sink estimates.

Policy misalignment

  • Risk of prioritizing area expansion over forest quality and biodiversity.

Monitoring challenges

  • Need for harmonized methodologies for accurate carbon accounting.

Way Forward

Integrative assessment framework

  • Combine DVM projections with FSI ground-truthing.

Focus on forest quality

  • Promote native species and ecological restoration over monoculture plantations.

Strengthen monitoring systems

  • Improve carbon inventory methods and periodic assessments.

Climate-resilient forest management

  • Address fire, pest, and extreme weather risks.

Conclusion

While rising forest biomass offers a strategic opportunity for India’s climate goals, balancing carbon sequestration with ecological integrity and methodological rigor is essential for sustainable and credible outcomes.