RT info:eu-repo/semantics/article
T1 The Effects of Fire Severity on Vegetation Structural Complexity Assessed Using SAR Data Are Modulated by Plant Community Types in Mediterranean Fire-Prone Ecosystems
A1 Jimeno Llorente, Laura
A1 Marcos Porras, Elena María
A1 Fernández Guisuraga, José Manuel
A2 Ecologia
K1 Ecología. Medio ambiente
K1 Ingeniería forestal
K1 C-band
K1 Fire impact
K1 Mediterranean Basin
K1 Resprouters
K1 Seeders
K1 Sentinel-1
K1 Sentinel-2
K1 Synthetic aperture radar
K1 Vegetation structure
K1 2417.13 Ecología Vegetal
K1 2506.16 Teledetección (Geología)
K1 3106.99 Otras (Incendios forestales)
K1 3106.06 Protección
AB [EN] Vegetation structural complexity (VSC) plays an essential role in the functioning and the stability of fire-prone Mediterranean ecosystems. However, we currently lack knowledge about the effects of increasing fire severity on the VSC spatial variability, as modulated by the plant community type in complex post-fire landscapes. Accordingly, this study explored, for the first time, the effect of fire severity on the VSC of different Mediterranean plant communities one year after fire by leveraging field inventory and Sentinel-1 C-band synthetic aperture radar (SAR) data. The field-evaluated VSC retrieved in post-fire scenarios from Sentinel-1 γ0 VV and VH backscatter data featured high fit ( R2 = 0.878) and low predictive error (RMSE = 0.112). Wall-to-wall VSC estimates showed that plant community types strongly modulated the VSC response to increasing fire severity, with this response strongly linked to the regenerative strategies of the dominant species in the community. Moderate and high fire severities had a strong impact, one year after fire, on the VSC of broom shrublands and Scots pine forests, dominated by facultative and obligate seeder species, respectively. In contrast, the fire-induced impacts on VSC were not significantly different between low and moderate fire-severity scenarios in communities dominated by resprouter species, i.e., heathlands and Pyrenean oak forests
PB MDPI
LK https://hdl.handle.net/10612/20591
UL https://hdl.handle.net/10612/20591
NO Jimeno-Llorente, L., Marcos, E. & Fernández-Guisuraga, J. M. (2023). The effects of fire severity on vegetation structural complexity assessed using SAR data are modulated by plant community types in Mediterranean fire-prone ecosystems. Fire, 6(12), Article e450. https://doi.org/10.3390/FIRE6120450
NO This article belongs to the Special Issue The Use of Remote Sensing Technology for Forest Fire
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 30-jun-2024