New! Sign up for our free email newsletter.
Science News
from research organizations

The bright ways forests affect their environment

Date:
August 20, 2018
Source:
University of Leeds
Summary:
New study finds volatile gases emitted by forests increase the amount of diffuse light reaching the forests. The study shows that this increased diffuse sunlight enhanced the carbon absorbed by the world's forests by an amount equal to 10 percent of global fossil fuel emissions and industry emissions.
Share:
FULL STORY

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

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.

Study lead author Dr Alexandru Rap, from the School of Earth and Environment at 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."


Story Source:

Materials provided by University of Leeds. Note: Content may be edited for style and length.


Journal Reference:

  1. A. Rap, C. E. Scott, C. L. Reddington, L. Mercado, R. J. Ellis, S. Garraway, M. J. Evans, D. J. Beerling, A. R. MacKenzie, C. N. Hewitt, D. V. Spracklen. Enhanced global primary production by biogenic aerosol via diffuse radiation fertilization. Nature Geoscience, 2018; DOI: 10.1038/s41561-018-0208-3

Cite This Page:

University of Leeds. "The bright ways forests affect their environment." ScienceDaily. ScienceDaily, 20 August 2018. <www.sciencedaily.com/releases/2018/08/180820113058.htm>.
University of Leeds. (2018, August 20). The bright ways forests affect their environment. ScienceDaily. Retrieved March 28, 2024 from www.sciencedaily.com/releases/2018/08/180820113058.htm
University of Leeds. "The bright ways forests affect their environment." ScienceDaily. www.sciencedaily.com/releases/2018/08/180820113058.htm (accessed March 28, 2024).

Explore More

from ScienceDaily

RELATED STORIES