Archivos de diario de marzo 2019

28 de marzo de 2019

Lichen and Air Pollution in Hamilton, Ontario

The Hamilton Naturalists' Club and Environment Club did a study to test air quality in different parts of Hamilton using lichen:

"Testing both ash and maple trees, McMaster professor George Sorger found that there existed a relationship between two common lichen species (Physcia millegrana and Candelaria concolor) and sulphur dioxide and nitrogen dioxide levels. Areas with a high lichen presence have better air quality than those with a low presence."

"Hamilton residents can help by planting native trees in their yards, as the greatest opportunity to increase the urban tree canopy is through private property. The low lichen diversity and abundance in urban areas also indicate the need to prioritize public transit and reduce exhaust emissions along high-travelled roadways. Lichen diversity should also be assessed and monitored in Hamilton over time to track changes in our airshed."

Identification tips in the Appendix.

http://hamiltonnature.org/wp-content/uploads/2019/03/Lichen-Report-2018.pdf

Publicado el marzo 28, 2019 01:22 MAÑANA por upupa-epops upupa-epops | 0 comentarios | Deja un comentario