Cited by 311Fire effects on ecosystemsFire Detection and Safety SystemsClimate variability and models

Global and regional analysis of climate and human drivers of wildfire

Aldersley, Andrew, Murray, Steven J., Cornell, Sarah E.·2011·Science of The Total Environment

Abstract

Identifying and quantifying the statistical relationships between climate and anthropogenic drivers of fire is important for global biophysical modelling of wildfire and other Earth system processes. This study used regression tree and random forest analysis on global data for various climatic and human variables to establish their relative importance. The main interactions found at the global scale also apply regionally: greatest wildfire burned area is associated with high temperature (> 28 °C), intermediate annual rainfall (350-1100 mm), and prolonged dry periods (which varies by region). However, the regions of highest fire incidence do not show clear and systematic behaviour. Thresholds seen in the regression tree split conditions vary, as do the interplay between climatic and anthropogenic variables, so challenges remain in developing robust predictive insight for the most wildfire-threatened regions. Anthropogenic activities alter the spatial extent of wildfires. Gross domestic product (GDP) density is the most important human predictor variable at the regional scale, and burned area is always greater when GDP density is minimised. South America is identified as a region of concern, as anthropogenic factors (notably land conversions) outweigh climatic drivers of wildfire burned area.

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Crossref · 10.1016/j.scitotenv.2011.05.032

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Authors
Aldersley, A., Murray, S. J., & Cornell, S. E.
Affiliations
University of Bristol (GB)
Corresponding author
Aldersley, Andrew
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2011-08
Volume
409
Issue
18
Pages
3472-3481
ISSN
0048-9697 (ISSN-L)
OpenAlex
W2122136101
Cited by
311
References
58
Citations by year
2026: 15 · 2025: 30 · 2024: 34 · 2023: 30 · 2022: 46 · 2021: 29 · 2020: 21 · 2019: 12 · 2018: 18 · 2017: 22 · 2016: 13 · 2015: 10 · 2014: 10 · 2013: 14 · 2012: 7
FWCI
8.48
Type
journal article
Language
en
Open access
closed
Locations
  • The Science of The Total Environment (publishedVersion)
  • PubMed (publishedVersion)
  • Bristol Research (University of Bristol) (publishedVersion)
  • Explore Bristol Research (submittedVersion)
Funders
  • University of Bristol
  • AXA Research Fund
  • Natural Environment Research Council
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Fire effects on ecosystems
  • Physical Sciences › Engineering › Safety, Risk, Reliability and Quality › Fire Detection and Safety Systems
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
Keywords
forest fires, burned area, climate drivers of fire, land conversion, temperature, rainfall, dry period, regression trees, random forest, South America
MeSH terms
Climate, Environmental Monitoring, Environmental Pollution, Fires, Humans, Regression Analysis, Trees, Wilderness, Climate Change

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