Abstract
Abstract Forest fires have a significant impact on peatland ecosystem, including its vegetation diversity. Several approaches applied for forest fire severity assessment are available in the literature. This study aimed to implement field-based and spatial-aware fire severity assessments and to compare both approaches. Peat swamp forests of Ogan Komering Ilir, South Sumatera Province, for field assessment and Siak, Riau Province, for spatial assessment were selected in this research. Field-based fire severity assessment used indicators of vegetation analyses (individual tree damages, burned vegetation severity, and diversity index), which were measured and analyzed from sample plots in both burned and unburned areas. Spatial analyses of fires severity assessment employed Sentinel-2 satellite imagery with Normalized Burn Ratio (NBR) approach. The research revealed a significant change in tree species diversity, indicating a lower diversity in burned areas than the ones in pristine fields. Magnitude of changes in diversity was influenced by fire severity levels in burned areas and pre-fire condition of burned areas. Spatial analyses indicated low to high fire severity with burned area estimation for each fire severity class. Both approaches have their own benefits and challenges. Field-based severity assessment is beneficial for a detailed assessment of fire damages and losses, whereas spatial analyses would be considered for a broader estimation of fire severity. Both assessments are mutually implemented. Field-based assessment can serve as a verification tool for spatial assessment.
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Claims 6
Claim · model-written summary
Tree species diversity was significantly lower in burned than pristine peat swamp forest.
Verbatim
e0“The research revealed a significant change in tree species diversity, indicating a lower diversity in burned areas than the ones in pristine fields.”
Claim · model-written summary
The magnitude of tree diversity change varied with fire severity and pre-fire condition.
- Taxon
- peatland vegetationt0
- Outcome
- Magnitude of changes in diversitye0
- Qualifier
- fire severity levels in burned areas and pre-fire condition of burned arease0
- Setting
- burned arease0
Not reportedDirection
Verbatim
e0“Magnitude of changes in diversity was influenced by fire severity levels in burned areas and pre-fire condition of burned areas.”
t0“Fire severity assessment on peatland vegetation diversity”
Claim · model-written summary
Spatial analysis identified low to high fire severity and estimated burned area by severity class.
- Taxon
- peatland vegetationt0
- Outcome
- fire severitye0
- Qualifier
- burned area estimation for each fire severity classe0
Not reportedComparatorValue
Verbatim
e0“Spatial analyses indicated low to high fire severity with burned area estimation for each fire severity class.”
t0“Fire severity assessment on peatland vegetation diversity”
Claim · model-written summary
Field assessment gives detailed estimates of fire damage and loss.
Verbatim
e0“Field-based severity assessment is beneficial for a detailed assessment of fire damages and losses”
t0“Fire severity assessment on peatland vegetation diversity”
Claim · model-written summary
Spatial assessment gives broader fire severity estimates.
Verbatim
e0“spatial analyses would be considered for a broader estimation of fire severity”
t0“Fire severity assessment on peatland vegetation diversity”
Claim · model-written summary
The authors propose field assessment to verify spatial fire severity assessment.
Verbatim
e0“Field-based assessment can serve as a verification tool for spatial assessment.”
t0“Fire severity assessment on peatland vegetation diversity”