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Large scale shrub biomass estimates for multiple purposes
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Orientador(es)
Resumo(s)
With the increase of forest fires in Portugal in recent decades, a significant part of woodlands
is being converted into shrubland areas. Background: From an ecological point of view, woodlands
and shrublands play an essential role, as they not only prevent soil erosion and desertification, but
also contribute to soil protection, habitat preservation and restoration, and also increased biodiversity
for carbon sequestration. Concerning the shrublands, the assessment of their biomass is essential
for evaluating the fuel load and forest fire behavior and also beneficial for obtaining estimates of
carbon and biomass for energy use. Methods: In this study, we collected data about the potential
shrub biomass accumulation along fifteen years in former burnt areas within North Portugal. Results:
The achieved results showed that for a post-fire period ranging from one to 15 years, the accumulated
shrubs’ biomass ranged from 0.12 up to 28.88 Mg ha1. The model developed to estimate the shrub
biomass using the time after a fire (age) as a predictor variable presented a high adjustment to data
(p-value of the F statistic <0.01 and R2 = 0.89), allowing estimating shrub biomass regeneration
within former burnt areas with an RMSE of 3.31 Mg ha1. Conclusions: This paper provides practical
information on the availability and assessment of shrub biomass in North Portugal, highlighting the
suitability of shrubs as potential sources of biomass
Descrição
Palavras-chave
wildfires productivity bioenergy allometric equations Pinus pinaster
Contexto Educativo
Citação
Life 2020, 10, 33
Editora
MDPI