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Categoria: Alterações Climáticas – RIAAC-AGRI
Pág. 1 de 32
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Arquivos:
Autor Julio Berbel - Universidad de Córdoba
Ano
:
2020
Editor
:
FENACORE
Idioma  Spanish
Tamanho do Arquivo 14.43 MB
Transferir 31
Autor FAO
Ano
:
2020
Editor
:
FAO
Idioma  English
Tamanho do Arquivo 15.13 MB
Transferir 40
Autor Alexandra Diogo
Ano
:
2020
Editor
:
FNOP - Federação Nacional das Organizações de Produtores de Frutas e Hortícolas
Idioma  Portuguese
Tamanho do Arquivo 1.19 MB
Transferir 658
Autor Tiago Silva Pinto
Ano
:
2020
Editor
:
ANPROMIS - Associação Nacional do Produtores de Milho e Sorgo
Idioma  Portuguese
Tamanho do Arquivo 1.93 MB
Transferir 774
Autor Marta Costa Santos
Ano
:
2020
Editor
:
COTR - Centro de Competências para o Regadio Nacional
Idioma  Portuguese
Tamanho do Arquivo 811.02 KB
Transferir 763
Autor Conceição Santos e Silva
Ano
:
2020
Editor
:
UNAC - União da Floresta Mediterrânica
Idioma  Portuguese
Tamanho do Arquivo 1.21 MB
Transferir 951

A UNAC - União da Floresta Mediterrânica publicou o "Catálogo de Projetos RIAAC–AGRI", resultante de um levantamento exaustivo da informação científica existente no âmbito da RIAAC-AGRI - Rede de impacto e adaptação às alterações climáticas nos setores agrícola, agroalimentar e florestal, que tem o objetivo de transferir boas práticas e novos conhecimentos para qualificar as empresas e a intervenção dos agentes de desenvolvimento rural no que respeita à adaptação às alterações climáticas.

Autor Alexandra Diogo (FNOP); Ana Paiva Brandão (UNAC); Cidália Vila Verde (UNAC); Conceição Santos Silva (UNAC); Gonçalo Rodrigues (COTR); Diogo Martins (ISA); Luís Mira da Silva (ISA); Teresa Afonso do Paço (ISA); Tiago Silva Pinto (ANPROMIS)
Ano
:
2020
Editor
:
ANPROMIS
Idioma  Portuguese
Tamanho do Arquivo 991.89 KB
Transferir 790

A UNAC - União da Floresta Mediterrânica publicou o "Catálogo de Projetos RIAAC–AGRI", resultante de um levantamento exaustivo da informação científica existente no âmbito da RIAAC-AGRI - Rede de impacto e adaptação às alterações climáticas nos setores agrícola, agroalimentar e florestal, que tem o objetivo de transferir boas práticas e novos conhecimentos para qualificar as empresas e a intervenção dos agentes de desenvolvimento rural no que respeita à adaptação às alterações climáticas.

Autor Alexandra Diogo (FNOP); Ana Paiva Brandão (UNAC); Cidália Vila Verde (UNAC); Conceição Santos Silva (UNAC); Gonçalo Rodrigues (COTR); Diogo Martins (ISA); Luís Mira da Silva (ISA); Teresa Afonso do Paço (ISA); Tiago Silva Pinto (ANPROMIS)
Ano
:
2020
Editor
:
ANPROMIS
Idioma  Portuguese
Tamanho do Arquivo 982.07 KB
Transferir 596

The impacts of climate and associated socio-economic changes on water availability, including supply and demand, quality, and storage volume, were evaluated for the Vale do Gaio reservoir in southern Portugal, located in a dry Mediterranean climate and already under drought stress.

The SWAT model was applied with 6 scenarios for 2071–2100, involving two storylines (A1B and B1) with individual changes in climate (−9% rainfall, increasing in winter by+28 to +30%), socio-economic conditions (an increase in irrigation demand by 11%, and a replacement of cereals and pastures by sunflower), and a combination of both. Most future scenarios resulted in lower water availability, due to lower supply (−19 to −27%) combined with higher irrigation demand (+3 to +21%).

This resulted in more years with limited irrigation supplies (presently: 28%; scenarios: 37 to 43%), although limitations were mitigated by lower losses to excess discharge. Land-use changes also decreased quality by increasing P concentrations (+29 to +93%). Impacts were more severe in scenario A1B than in B1, and in combined changes than in climate or socio-economic changes only.

Water availability was resilient to climate change, as impacts led only to a moderate aggravation of present-day conditions. Lower future water availability could be addressed by supply and demand management strategies and, in the most extreme scenario, by water transfers fromregionalwater reserves;water quality issues could be addressed through land-use policies. Results also highlighted the importance of taking the characteristics of water supply systems into account when designing
adaptation measures for future changes.

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Ano
:
2017
Editor
:
Science of the Total Environment 584- 585: 219-233; DOI https://doi.org/10.1016/j.scitotenv.2017.01.131
Transferir 165

In this work we developed projections for future fire regimes in the Iberian Peninsula using outputs from Regional Climate Model (RCM) from the ENSEMBLES project. Wildfires are the cause of major ecological and economic impacts in this region, and the increasing evidence of climate change consequences in this region raises concerns on the future impacts of fires in the Iberian forests ecosystems.

Our results confirm that the inter-annual variability of total burnt area is mainly controlled by meteorological conditions, in spite of the current efforts for fire control and suppression. We also show that this meteorology dominance over fire activity is not only true during the fire season itself, but also that certain specific meteorological backgrounds (such as prolonged droughts) may enhance the risk for severe wildfire episodes in some areas.

Based on a previous classification of the Iberian Peninsula into four distinct pyro-regions, we developed statistical models which reproduce about two thirds of the inter-annual variability of the burnt area, using meteorological variables as predictors (calibrated with data from the ERA-Interim reanalysis). Specific models were developed for each sub-domain, testing their robustness for extrapolation under climate-change conditions.

Using an ensemble of state-of-the-art RCM future climate scenarios, we present future BA projections considering two alternative techniques of statistical correction of model data often used in climate change impact studies: (1) unbiasing method; (2) delta change method.

Our results clearly project large increases in mean burnt areas for all the considered pyro-regions, despite some fluctuations regarding each considered technique. By 2075, mean burnt areas could be about two to three times larger than in the present, taking into account current climate projections for the next century, and non-significant changes in other external factors, such as human activity, fire suppression or land use.

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Ano
:
2015
Editor
:
Agricultural and Forest Meteorology 202:11-25; DOI: 10.1016/j.agrformet.2014.11.018
Idioma  English
Transferir 176