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Assessment of fire resilience in subtropical wetlands using high spatial resolution images

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Abstract

Resilience is the ability of a system to absorb disturbances, rearrange itself, and adapt in order to maintain its functionality, structure, identity, and feedback. Research involving fire resilience in subtropical wetlands (SW) allows us to understand the dynamics of these ecosystems, measure impacts on fauna and flora, and promote policies for the management and protection. The aim of the present study is to assess the fire resilience of SW. The study was divided into three steps: (i) burned area classification, (ii) vegetation pattern classification, and (iii) temporal analysis of SW fire resilience based on NDVI calculation. Our results show that (a) high resilience potential of emerging plants, which developed green leaves in less than 90 days after the fire; (b) poor recovery of peatlands with underground fire history. Daily coverage of high spatial resolution PlanetScope images has great potential for classification and monitoring of land use in areas where there are rapid changes, such as after a fire event, explosions, and dam ruptures with ore tailings, for example.

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Acknowledgements

We would like to thank the Coordination for the Improvement of Higher Education Personnel (CAPES) and the National Council for Scientific and Technological Development (CNPq) for the doctoral scholarship and the research productivity grant, which funded the present research. We would also like to thank PlanetScope for the satellite images, which were essential for the conduction of the present study, and the biologist at the Botanical Garden of Porto Alegre Priscila Porto Alegre Ferreira for the botanical review.

Finally, the authors would like to thank the Department of Environment and Infrastructure of Rio Grande do Sul State, which made it possible to fly over to obtain aerial photos during the execution of the EPABG Management Plan.

Funding

This research was funded by the CAPES Agency (Coordination for the Improvement of Higher Education Personnel) through a doctoral scholarship granted to the authors J.P.D.S and T.F.B. and the CNPQ (National Council for Scientific and Technological Development) through a productivity grant to the author L.A.G.

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Conceptualization: J.P.D.S., L.A.G., and T.F.B.; methodology: J.P.D.S., L.A.G., T.F.B., and R.A.R.; writing – original draft preparation: J.P.D.S., L.A.G.; writing – review and editing: L.A.G., T.F.B., and R.A.R. All authors have read and agreed to the published version of the manuscript.

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Correspondence to João Paulo Delapasse Simioni.

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The authors declare no competing interests.

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Simioni, J.P.D., Guasselli, L.A., Belloli, T.F. et al. Assessment of fire resilience in subtropical wetlands using high spatial resolution images. Environ Monit Assess 194, 417 (2022). https://doi.org/10.1007/s10661-022-09985-8

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  • DOI: https://doi.org/10.1007/s10661-022-09985-8

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