Google Play icon

The bright ways forests affect their environment

Share
Posted August 21, 2018

For decades, scientists have tried to understand why forests emit the volatile gases that give pine forests their distinctive smell. A new study may have found the answer.

Forest. Image credit: Antranias via Pixabay, CC0 Public Domain

Particles in the atmosphere scatter sunlight, causing light at the Earth’s surface to come from many different directions rather than direct from the sun. This diffuse light benefits forests by illuminating leaves that would be shaded under direct sunlight.

The study, published in Nature Geoscience, found that volatile gases emitted by forests form particles in the atmosphere and increase the amount of diffuse light reaching the forests. Using computer simulations the team were able to show that this increased diffuse sunlight enhanced the carbon absorbed by the world’s forests by an amount equal to 10% of global fossil fuel emissions and industry emissions.

Professor Nick Hewitt of Lancaster University Environment Centre was part of the study.

He said: “This study is the culmination of almost ten years work and I am delighted we have finally unravelled another of the many mysteries of the Earth system.”

Study lead author Dr Alexandru Rap, from the School of Earth and Environment at the University of Leeds, said:  “Amazingly we found that by emitting volatile gases forests are altering the Earth’s atmosphere in a way which benefits the forests themselves. While emitting volatile gases costs a great deal of energy, we found that the forests get back more than twice as much benefit through the effect the increased diffuse light has on their photosynthesis.”

Source: Lancaster University

Featured news from related categories:

Technology Org App
Google Play icon
84,082 science & technology articles

Most Popular Articles

  1. Efficiency of solar panels could be improved without changing them at all (September 2, 2019)
  2. Diesel is saved? Volkswagen found a way to reduce NOx emissions by 80% (September 3, 2019)
  3. The famous old Titanic is disappearing into time - a new expedition observed the corrosion (September 2, 2019)
  4. The Time Is Now for Precision Patient Monitoring (July 3, 2019)
  5. Europe and US are Going to Try and Deflect an Asteroid (September 6, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email