2,3. The average forest fire size in Canada, the USA and Australia has doubled or even tripled in recent decades4,5. In return, forest fires feed back to climate by modulating land–atmospheric carbon, nitrogen, aerosol, energy and water fluxes6,7,8. However...
Recent trends in fire size and burnt area Historical data for forest burnt areas and the number of fires for Canada, the USA and Australia were collated from a variety of sources (Supplementary Table 1). For Canada, the fire event dataset consisted of point data retrieved from the Canadian ...
which caused the conversion of small patches into large patches and reduced forest fragmentation. In contrast, more frequent fires, caused by climate change in Canada, Far East Russia, the Brazilian Amazon, tropical Africa and coastal Australia (Supplementary Fig.5) have resulted in remarkable forest...
such as lightning. These fires are integral to maintaining ecosystem stability, as they promote biodiversity, facilitate nutrient cycling, and reduce fuel loads, thereby preventing the accumulation of combustible material. In contrast, wildfires, which are increasingly driven by human ...
While forests in most states continue to be carbon sinks, forests in some Rocky Mountain states have recently become carbon sources due to the effects of drought, insect and disease epidemics, and forest fires. [1] R&D Hot Topic: Forest Carbon Status and Trends (usda.gov). New England’s ...
The global forest condition [68], as visualised using satellite derived and modelled current and potential forest cover [88] Full size image Recently released global products have quantified forest extent and change at unprecedented scale, and provide valuable data for understanding forest trends and ...
BlueSky (BS): The BlueSky Western Canada Wildfire Smoke Forecasting Framework (http://firesmoke.ca) uses current data to generate hourly forecasts of PM2.5 concentrations from forest fires up to 60 h in advance with a spatial resolution of 4 km. Like FireWork, it is a complex forecasting sys...
Fig. 3. Top 100 keywords in the publications on forest fires (The size of each keyword represents its proportion of usage in the number of publications). Temporal trends Approximately 45 % of the journal articles published on forest/wildfires were covered in the Science Citation Index (SCI), ...
Levels of fire activity and severity that are unprecedented in the instrumental record have recently been observed in forested regions around the world. Using a large sample of daily fire events and hourly climate data, here we show that fire activity in
the forest cover in the marginal agricultural region first increased and then decreased but remained high for the entire period, while that in the core agricultural region decreased gradually; after approximately 3500 cal yr BP, both subregions showed descending trends, while the decreasing rate ...