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How Wild Fire Affect crop and vegetation Production

How Wild Fire Affect crop and vegetation Production


  • GS 3 || Environment || Geography & Environment || Agriculture

Why in News?

  • Pollutants from wild fires affect crop and vegetation growth hundreds of kilometers from impact zone.

Research Findings

  • The study examined how ozone and aerosolstwo by-product pollutants of wildfires—influences healthy plant growth in areas that are seemingly unaffected by the destructive natural disasters.
  • The startling extent to which violent wild fires, affect forests and crops way beyond the boundaries of the blaze has been revealed.
  • Study is published in Nature Communications.
  • A pioneering new study by Professor Nadine Unger of the University of Exeter and Professor XuYue of the Institute of Atmospheric Physics in Beijing, has revealed that pollutants released by the devastating wild fires can affect crop and vegetation growth hundreds of kilometres from the fire impact zone.

Effect & GPP

  • It found that there was a significant reduction in plant productivity in areas far away from the fire’s borders. The study suggests that fire pollution could pose an increasing threat to regional, and even global, productivity in the warming future world.
  • Globally, over the past decade, fire ozone pollution reduced plant productivity substantially more than estimated drought losses.
  • The Gross Primary Productivity (GPP) – essentially plant photosynthesis – was significantly reduced when the amount of surface ozone increases.
  • Crops and vegetation in sub-Saharan Africa were identified as particularly vulnerable hot spots to fire ozone pollution damage.
  • The study suggests that the ecological impacts of this air pollution is far greater than previously thought – potentially impacting crop production that is crucial to the survival of rural, remote communities.


Additional Info

  • Aerosol,
    • A system of liquidor solid particles uniformly distributed in a finely divided state through a gas, usually air.
    • Aerosol particles, such as dust, play an important role in the precipitationprocess, providing the nuclei upon which condensation and freezing take place.
    • They affect climateby reflecting or absorbing incoming solar radiation and enhancing the brightness, and thus reflectivity, of clouds. They also participate in chemical processes and influence the electrical properties of the atmosphere.


  • What impacts wildfire pose on ecosystem?