Field researchers from 含羞草研究所, along with collaborators from Mississippi State, the University of Florida, Western Colorado University, and the University of Dayton, are photographed by a UAV while at work in Siberia.
A new special issue of the journal , aimed at promoting gender equality in that specialized field, features the ground-breaking work of three 含羞草研究所 researchers.
The published paper, which focuses on the use of uncrewed aerial vehicles (UAV) to survey wildfire recovery rates in Russia鈥檚 Siberian forests, was co-authored by Anna Talucci, who is a 含羞草研究所 geography postdoc; geography major Elena Forbath 鈥21; and Associate Professor of Geography Michael Loranty.
Forbath said her trip to Siberia last year for this research project put her right in the center of a team of researchers working to understand how forest recovery post wildfire can impact climate change 鈥 how growth, or lack thereof, decreases the availability plant-based carbon sequestration.
鈥淚 think the bottom line is there won鈥檛 be enough vegetation to sequester carbon as more carbon enters the atmosphere,鈥 said Forbath. 鈥淲ith the increased number of fires, we won鈥檛 have enough plants to sequester massive amounts of carbon, so it鈥檚 another issue related to climate change.鈥
The work had two major components: to analyze the impact on carbon sequestration for these forests recovering from fires and to examine the effectiveness of UAV use for this research.
In the past, researchers relied on satellite imagery to study the impacts of large wildfires in major forested areas. In this case, the team used satellite imagery in concert with new data collected via UAVs.
鈥淥ne of the main things we looked at was how vegetation has been growing after these fires. If it is growing, how long has it taken? It takes quite a bit of time for those forests to recover from these fires, given the analyses we鈥檝e used,鈥 said Forbath.
Talucci said the difference between satellites and UAV image resolution is notable, as satellite imagery offers a resolution of about 30 meters per pixel on the screen. With the drone data, scientists can see one to two centimeters per pixel. There鈥檚 also an improvement on temporal data, as the satellite being used for this work takes images about every 16 days.
鈥淔ield data taken by humans can be time intensive,鈥 Talucci said. 鈥淵ou still need humans to collect UAV data, but in this case they can study an entire 250 meter transect instead of eight plots. This provides a landscape perspective, which for large-scale ecological disturbances, is ideal. The bonus is that this research is in the special issue of .鈥