An operational method for mapping the composition of post-fire litter
| Primer Autor |
Galleguillos, Mauricio
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| Co-autores |
Tolorza, Violeta
Poblete-Caballero, Dagoberto
Banda, David
Little, Christian
Leal, Claudia
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| Título |
An operational method for mapping the composition of post-fire litter
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| Editorial |
TAYLOR & FRANCIS LTD
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| Revista |
REMOTE SENSING LETTERS
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| Lenguaje |
en
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| Resumen |
Recent increase in the frequency and spatial extent of wildfires motivates the quick recognition of the affected soil properties over large areas. Digital Soil Mapping is a valuable approach to map soil attributes based on remote sensing and field observations. We predicted the spatial distribution of post-fire litter composition in a 40,600 ha basin burned on the 2017 wildfire of Chile. Remotely sensed data of topography, vegetation structure and spectral indices (SI) were used as predictors of random forest (RF) models. Litter sampled in 60 hillslopes after the fire provided training and validation data. Predictors selected by the Variable Selection Using Random Forests (VSURF) algorithm resulted in models for litter composition with acceptable accuracy (coefficient of determination, R (2) = 0.51-0.64, Normalized Root Mean Square Error, NRMSE = 16.9-22.1, percentage bias, pbias = -0.35%-0.5%). Modelled litter parameters decrease in concentration respect to the degree of burn severity, and the pre-fire biomass. Because pre-fire vegetation was conditioned by land cover and by a previous (2 years old) wildfire event, our results highlight the cumulative effect of severe wildfires in the depletion of litter composition.
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| Tipo de Recurso |
artículo original
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| Description |
This work was supported by the FONDECYT [11190864], FONDAP [15110009], Universidad de La Frontera [VRIP20P001].
Este trabajo fue apoyado por la Fundación [11190864], FONDAP[15110009], Universidad De La Frontera [VRIP20P001].
|
| doi |
10.1080/2150704X.2022.2040752
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| Formato Recurso |
PDF
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| Palabras Claves |
SOIL
CHILE
BIODIVERSITY
WILDFIRE
IMPACTS
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| Ubicación del archivo | |
| Categoría OCDE |
Sensores remotos
Ciencia de la imagen y tecnología fotográfica
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| Materias |
SUELO
CHILE
BIODIVERSIDAD
INCENDIOS FORESTALES
IMPACTOS
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| Título de la cita (Recomendado-único) |
An operational method for mapping the composition of post-fire litter
|
| Página de inicio (Recomendado-único) |
511
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| Página final (Recomendado-único) |
521
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| Identificador del recurso (Mandatado-único) |
artículo original
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| Versión del recurso (Recomendado-único) |
version publicada
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| Condición de la licencia (Recomendado-repetible) |
0
|
| Derechos de acceso |
metadata
|
| Access Rights |
metadata
|
| Referencia del Financiador (Mandatado si es aplicable-repetible) |
ANID-FONDECYT 11190864
ANID-FONDAP 15110009
UFRO VRIP20P001
ANID FONDECYT 11190864
ANID FONDAP 15110009
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| Id de Web of Science |
WOS:000763106200001
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