The "mystery" of the relationship between wildfires and the succession of terrestrial vegetation systems

BEIJING, Nanjing, July 5 (Reporter Yang Yan-chee), according to China Kexue Yuan of Nanjing Institute of Geology and Palaeontology 5 news, the Institute of Yunnan University research team composed by Permian - Triassic turn of charcoal and fossil Organic carbon isotopes etc.
carried out detailed studies and discovered the "mystery" of the relationship between wildfire events and the succession of terrestrial vegetation systems during that period
.

Related results have been published online in the journals Earth-Science Reviews and Frontiers in Earth Science
.

Wildfire events are an important part of terrestrial ecosystems and have played a vital role in many major changes in geological history
.

At the turn of the Permian-Triassic period, the largest biological extinction event occurred in geological history.
In recent years, research on the response of terrestrial ecosystems to this event has gradually become the focus
.
At present, there are more and more evidences that major wildfires occurred frequently throughout the world during the Late Permian

China Ke Xueyuan Nanjing Institute of Geology and Paleontology of the Late Paleozoic team researcher and doctoral student Zhang Cai Yao Feng, and Nanjing University, Yunnan University of collaborators, to Dalongkou profile Chinese and western Xinjiang Uygur Autonomous Region, Guizhou Province deserted ditch profile Permian - Triassic At the turn of the day, a detailed study was carried out on charcoal fossils and organic carbon isotopes, and it was found that there is a correlation between volcanic activity and wildfire events
.

Studies have found that wildfire incidents occurred frequently in the region during the Late Permian, and tended to become more intense
.
The research reflects the collapse of the terrestrial vegetation system at that time, and for wildfires, it represents the extreme scarcity of plant fuel at this stage

The researchers also found that volcanic activity has driven the increase in the intensity of wildfire events.