Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/18257 |
Resumo: | We present in this article the carbon balance accounting and mapping in the Portugal continental forests (Mediterranean forest), which occupies 36% of the national territory, mostly private (93%). These forests are characterized by their economic, social and environmental importance values, but during these last years, they are undergoing natural and anthropogenic disturbances and also a strong wood demand for supplying the industry sector. The first goal of this study was to quantify the different components of the carbon (C) cycle, gain and losses, using atmospheric flow approach (gain-loss approach) developed by Intergovernmental Panel on Climate Change (IPCC). The carbon gain reflects the yearly photosynthetic sequestration. The carbon losses reflect the different yearly disturbances like fires, forest logging, pests and diseases attacks. This method allows us to assess the carbon balance evolution from 1995 until 2014 and to identify the most important species in climate change mitigation regarding the air purification or the greenhouse gases emissions contribution. Our second purpose is mapping the carbon-density areas with two different approaches, firstly the direct Remote Sensing (DRS) approach using MODIS images, secondly the indirect approach named Combine and Assign (CA) Approach. MODIS images allow the accounting of Net Primary Productivity (NPP) which presents the quantity of carbon absorbed by vegetation cover during a period of time as a key indicator of ecosystem performance. The CA Approach combines remote sensing and field data in GIS environment to assess the yearly carbon sequestration for each ecozone and the carbon losses by fires in 2010, using the atmospheric flow proposed by IPCC. Our third objective is to link the NPP in 2017 derived from MOD17A3 (MODIS product) with abiotic factors (precipitation, temperature, elevation), to find the best conditions for carbon sequestration. Several geostatistical technics were tested to interpolate climatic factors for all the country. Towards the end, mitigation measures will be proposed. |
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Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal)Carbon balancePhotosynthetic sequestrationGreenhouse gases emissionsMODISIPCCClimate changeDomínio/Área Científica::Ciências Agrárias::Agricultura, Silvicultura e PescasWe present in this article the carbon balance accounting and mapping in the Portugal continental forests (Mediterranean forest), which occupies 36% of the national territory, mostly private (93%). These forests are characterized by their economic, social and environmental importance values, but during these last years, they are undergoing natural and anthropogenic disturbances and also a strong wood demand for supplying the industry sector. The first goal of this study was to quantify the different components of the carbon (C) cycle, gain and losses, using atmospheric flow approach (gain-loss approach) developed by Intergovernmental Panel on Climate Change (IPCC). The carbon gain reflects the yearly photosynthetic sequestration. The carbon losses reflect the different yearly disturbances like fires, forest logging, pests and diseases attacks. This method allows us to assess the carbon balance evolution from 1995 until 2014 and to identify the most important species in climate change mitigation regarding the air purification or the greenhouse gases emissions contribution. Our second purpose is mapping the carbon-density areas with two different approaches, firstly the direct Remote Sensing (DRS) approach using MODIS images, secondly the indirect approach named Combine and Assign (CA) Approach. MODIS images allow the accounting of Net Primary Productivity (NPP) which presents the quantity of carbon absorbed by vegetation cover during a period of time as a key indicator of ecosystem performance. The CA Approach combines remote sensing and field data in GIS environment to assess the yearly carbon sequestration for each ecozone and the carbon losses by fires in 2010, using the atmospheric flow proposed by IPCC. Our third objective is to link the NPP in 2017 derived from MOD17A3 (MODIS product) with abiotic factors (precipitation, temperature, elevation), to find the best conditions for carbon sequestration. Several geostatistical technics were tested to interpolate climatic factors for all the country. Towards the end, mitigation measures will be proposed.Apresentamos nesta tese a quantificação e o mapeamento do balanço de carbono nas florestas de Portugal continental, que ocupa 36% do território nacional, maioritariamente privado (93%). A floresta portuguesa possui elevado valor económico, social e ambiental, mas durante os últimos anos tem sofrido distúrbios naturais e antropogénicos. Tem também crescido a procura de madeira para suprir o sector industrial. O primeiro objectivo deste estudo foi quantificar os diferentes componentes do ciclo de carbono (C), ganhos e perdas, utilizando a abordagem de fluxo atmosférico (abordagem ganho-perda) desenvolvida pelo Painel Intergovernamental sobre Mudanças Climáticas (IPCC). O ganho de carbono reflecte o sequestro fotossintético anual. As perdas de carbono reflectem as diferentes perturbações anuais, como incêndios, extracção de madeira, insectos e ataques de doenças. Este método permite-nos avaliar a evolução do balanço de carbono de 1995 até 2014 e identificar as espécies mais importantes na mitigação da mudança climática em relação à purificação do ar ou a contribuição das emissões de gases de efeito estufa. Nosso segundo objectivo foi mapear a densidade de carbono por áreas homogéneas com duas abordagens diferentes, em primeiro lugar a abordagem directa de Detecção Remota (DR) usando imagens MODIS, em segundo lugar a abordagem indirecta denominada “Combine and Assign” (CA). As imagens MODIS permitem a quantificação da Produtividade Primária Líquida (NPP) que apresenta a quantidade de carbono absorvida pela cobertura vegetal durante um período de tempo como um indicador chave do desempenho do ecossistema. A abordagem CA combina dados de DR e dados de campo em ambiente SIG para avaliar o sequestro anual de carbono para cada zona ecológica homogénea considerada e as perdas de carbono por incêndios em 2010, usando o fluxo atmosférico proposto pelo IPCC. O terceiro objectivo foi vincular a NPP de 2017 obtida a partir do MOD17A3 (produto MODIS) com factores abióticos (precipitação, temperatura, elevação), para pesquisar as condições mais favoráveis para o sequestro de carbono. Diversas técnicas geoestatísticas foram testadas para interpolar factores climáticos para todo o país. No final, algumas medidas de mitigação foram propostas.Castro, João PauloBouhaloua, MhammedBiblioteca Digital do IPBAmeray, Abderrahmane2018-12-06T10:17:44Z201820172018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10198/18257TID:202054748enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:41:59Zoai:bibliotecadigital.ipb.pt:10198/18257Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:08:28.906954Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) |
title |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) |
spellingShingle |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) Ameray, Abderrahmane Carbon balance Photosynthetic sequestration Greenhouse gases emissions MODIS IPCC Climate change Domínio/Área Científica::Ciências Agrárias::Agricultura, Silvicultura e Pescas |
title_short |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) |
title_full |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) |
title_fullStr |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) |
title_full_unstemmed |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) |
title_sort |
Climate change mitigation: annual carbon balance accounting and mapping in the national forest ecosystems (continental Portugal) |
author |
Ameray, Abderrahmane |
author_facet |
Ameray, Abderrahmane |
author_role |
author |
dc.contributor.none.fl_str_mv |
Castro, João Paulo Bouhaloua, Mhammed Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Ameray, Abderrahmane |
dc.subject.por.fl_str_mv |
Carbon balance Photosynthetic sequestration Greenhouse gases emissions MODIS IPCC Climate change Domínio/Área Científica::Ciências Agrárias::Agricultura, Silvicultura e Pescas |
topic |
Carbon balance Photosynthetic sequestration Greenhouse gases emissions MODIS IPCC Climate change Domínio/Área Científica::Ciências Agrárias::Agricultura, Silvicultura e Pescas |
description |
We present in this article the carbon balance accounting and mapping in the Portugal continental forests (Mediterranean forest), which occupies 36% of the national territory, mostly private (93%). These forests are characterized by their economic, social and environmental importance values, but during these last years, they are undergoing natural and anthropogenic disturbances and also a strong wood demand for supplying the industry sector. The first goal of this study was to quantify the different components of the carbon (C) cycle, gain and losses, using atmospheric flow approach (gain-loss approach) developed by Intergovernmental Panel on Climate Change (IPCC). The carbon gain reflects the yearly photosynthetic sequestration. The carbon losses reflect the different yearly disturbances like fires, forest logging, pests and diseases attacks. This method allows us to assess the carbon balance evolution from 1995 until 2014 and to identify the most important species in climate change mitigation regarding the air purification or the greenhouse gases emissions contribution. Our second purpose is mapping the carbon-density areas with two different approaches, firstly the direct Remote Sensing (DRS) approach using MODIS images, secondly the indirect approach named Combine and Assign (CA) Approach. MODIS images allow the accounting of Net Primary Productivity (NPP) which presents the quantity of carbon absorbed by vegetation cover during a period of time as a key indicator of ecosystem performance. The CA Approach combines remote sensing and field data in GIS environment to assess the yearly carbon sequestration for each ecozone and the carbon losses by fires in 2010, using the atmospheric flow proposed by IPCC. Our third objective is to link the NPP in 2017 derived from MOD17A3 (MODIS product) with abiotic factors (precipitation, temperature, elevation), to find the best conditions for carbon sequestration. Several geostatistical technics were tested to interpolate climatic factors for all the country. Towards the end, mitigation measures will be proposed. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2018-12-06T10:17:44Z 2018 2018-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/18257 TID:202054748 |
url |
http://hdl.handle.net/10198/18257 |
identifier_str_mv |
TID:202054748 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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