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Sequestro de carbono em castinçais: impacto da densidade de varas simulado com o modelo CO2Fix

Carbon sequestration in chestnut coppices: impact of shoot density simulated with the CO2Fix model
Authors: Patrício, Maria Sameiro; El Baine, Chaimae; Nunes, Luís;

Sequestro de carbono em castinçais: impacto da densidade de varas simulado com o modelo CO2Fix

Abstract

As talhadias de castanheiro (Castanea sativa Mill.) podem potenciar o sequestro de carbono, contribuindo para a mitigação das alterações climáticas. Neste contexto, o presente estudo avaliou o potencial de sequestro de carbono em diferentes densidades de varas por touça, recorrendo ao modelo CO2Fix. O ensaio foi conduzido em Cimas de Mogadouro, no Nordeste de Portugal e compreendeu quatro tratamentos, avaliados ao longo de 12 anos. O modelo foi calibrado para simular a produção de biomassa e o correspondente sequestro de carbono numa rotação de 42 anos. Os tratamentos com três (T2) e cinco (T3) varas revelaram maior acumulação de biomassa e carbono, sobretudo na biomassa aérea e raízes. O tratamento T2 destacou‑se pelo maior acréscimo corrente anual e pela produção de varas com maiores diâmetros conferindo-lhes potencial de armazenamento de carbono em produtos de longa duração. A modelação mostrou‑se consistente nos tratamentos T1, T2 e T3, embora tenha subestimado o carbono no tratamento T4 (alto fuste) nas fases iniciais. Os resultados confirmam que, através de práticas silvícolas ajustadas, os castinçais funcionam como sumidouros de carbono eficientes, promovendo uma gestão florestal sustentável.

Country
Portugal
Related Organizations
Keywords

Castanheiro, Castanea sativa, Modelação, Silvicultura, Sequestro de carbono, Talhadia

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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