Hedgerow and shelterbelt impact on fire risk to rural Canterbury infrastructure.
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This report investigates the influence of hedgerows and shelterbelts on fire risk to rural infrastructure in Canterbury, New Zealand, in collaboration with Fire and Emergency New Zealand (FENZ). With wildfires becoming more frequent, this research addresses a critical need to assess how hedgerows and shelterbelts impact wildfire hazards. The central research question explored was: How do the distribution and characteristics of hedgerows and shelterbelts influence fire risk to infrastructure in rural Canterbury? The methodology involved a combination of qualitative and quantitative methods. Ground truthing was conducted at a rural property where the height, width, distance, and species composition of hedgerows and shelterbelts were measured. Aerial imagery and ArcGIS Pro were used to analyse spatial data, create heat maps, and develop buffer zones around critical infrastructure. Findings reveal a spatial correlation between the distribution of hedgerows and infrastructure at a regional level. Ground truthing and spatial analysis of the case study property confirmed that it is an at-risk property. Various imitations were encountered throughout the process, including data availability, fire risk assumptions and research scale. Future research would help to expand the scale of the results, increase output quality and make computation more efficient.