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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/5846

Title: The adjustment of global and partial dry biomass models for Pinus pinaster in the North-East of Portugal
Authors: Lopes, Domingos
Almeida, L.R.
Castro, João Paulo
Aranha, José
Keywords: Pinus pinaster
Total biomass
Stem biomass
Crop biomass
Roots biomass
Issue Date: 2005
Publisher: SPCF - Sociedade Portuguesa de Ciências Florestais
Citation: Lopes, Domingos; Almeida, L.R.; Castro, João Paulo; Aranha, José (2005) – The adjustment of global and partial dry biomass models for Pinus pinaster in the North-East of Portugal. In 5º Congresso Florestal Nacional. Viseu
Abstract: Ecosystems net primary production quantification can be done by means of allometric equations. Carbon sequestration studies also involve the quantification of growth dry biomass, knowing the carbon percentage of dry biomass. Fieldwork complexity to collect these kind of data are often limitative for obtaining these mathematical models. Allometric equations were adjusted to estimate dry biomass of individual Pinus pinaster trees, using data from 30 trees. Statisticals form the final equations have shown that biomass estimation could be made under an accuracy of around 95%. All mathematical models were calculated using diameter at breast height (dbh) as independent variable and enable to estimate biomass (in Kg) for: stem (R2adj=97.9); crown (R2adj=88.4) and roots (R2adj= 93. 5).
Peer Reviewed: yes
URI: http://hdl.handle.net/10198/5846
Publisher version: http://www.esac.pt/cernas/cfn5/tema2.htm
Appears in Collections:ARN - Artigos em Proceedings Não Indexados ao ISI

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