scholarly journals Fungal Endophytes Exert Positive Effects on Colobanthus quitensis Under Water Stress but Neutral Under a Projected Climate Change Scenario in Antarctica

2020 ◽  
Vol 11 ◽  
Author(s):  
Rasme Hereme ◽  
Samuel Morales-Navarro ◽  
Gabriel Ballesteros ◽  
Andrea Barrera ◽  
Patricio Ramos ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Stress ◽  
Climate Change Scenario ◽  
Fungal Endophytes ◽  
Change Scenario ◽  
Colobanthus Quitensis ◽  
Positive Effects

scholarly journals O Papel das Oleaginosas em um Cenário de Mudanças Climáticas no Semiárido Brasileiro (The Role of Oilseeds in a Climate Change Scenario in the Brazilian Semiarid)

2013 ◽  
Vol 5 (6) ◽  
pp. 1426
Author(s):  
João Nildo S. Vianna ◽  
Marcelo Castro Pereira ◽  
Laura M.G. Duarte ◽  
Magda E. Wehrmann
Keyword(s):  
Climate Change ◽  
Water Stress ◽  
Climate Changes ◽  
Climate Change Scenario ◽  
Geographic Location ◽  
Semiarid Region ◽  
Change Scenario ◽  
Brazilian Semiarid ◽  
Family Agriculture

Este trabalho tem por objetivo avaliar, ainda que de forma preliminar, os efeitos limitantes das mudanças climáticas na produção de oleaginosas agro-energética no semiárido brasileiro, nomeadamente a redução dos índices pluviométricos e aumento de temperatura. Para alcançar este objetivo usa-se como referência a evolução de variáveis climáticas, por meio da série histórica entre 1973 e 2010, e projeções futuras tendo por base os cenários de mudanças climáticas, desenvolvidos para o nordeste brasileiro até 2100. O recorte geográfico é a região de Irecê, no semiárido da Bahia, tradicional reduto da agricultura familiar e grande produtor de alimentos consorciado com oleaginosas. O estudo mostra que as culturas tradicionais de oleaginosas estão próximas aos limites de exigências hídricas, pelo que, para enfrentar as mudanças nos padrões climáticos, vai ser necessário um melhoramento genético das culturas tradicionais para que essa espécies consigam tolerar as restrições hídricas. Preconizando-se igualmente a introdução de espécies mais rústicas e com maior resistência ao estresse hídrico. Palavras-Chave: Agricultura Familiar, Vulnerabilidade e Adaptação às Mudanças Climáticas, Biodiesel, Semiárido.  The Role of Oilseeds in a Climate Change Scenario in the Brazilian Semiarid  ABSTRACT The present study aims to evaluate the effects of climate changes on the production of oilseed and energy crops in the Brazilian semiarid region. The study is based on the analysis of past climate, by evaluating a historic series of rain and temperature from 1973 to 2010. This historic series is, then, compared to a future climate prediction, based on climatic change scenarios developed for the Brazilian northeast until 2100. The geographic location of the study is the Irecê area of the State of Bahia, in the semi-arid northeast. That is a traditional family agriculture area with a strong food crop and oilseeds production. The study shows that traditional oilseed crops are being cultivated near the limits of their water needs. In order to face the climate changes, such crops would need to be genetically improved to increase their tolerance to water stress. An option would be to introduce species with higher level of tolerance to water stress. Keywords: family agriculture, vulnerability and adaptation to climate changes, biodiesel, semiarid.

scholarly journals Simulating Agroforestry Adoption in Rural Indonesia: The Potential of Trees on Farms for Livelihoods and Environment

Land ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 385
Author(s):  
Beatrice Nöldeke ◽  
Etti Winter ◽  
Yves Laumonier ◽  
Trifosa Simamora
Keyword(s):  
Climate Change ◽  
Climate Change Scenario ◽  
Agroforestry System ◽  
Environmental Benefits ◽  
Small Scale ◽  
Change Scenario ◽  
Trees On Farms ◽  
Agroforestry Adoption ◽  
Mitigate Climate Change ◽  
Small Scale Farmers

In recent years, agroforestry has gained increasing attention as an option to simultaneously alleviate poverty, provide ecological benefits, and mitigate climate change. The present study simulates small-scale farmers’ agroforestry adoption decisions to investigate the consequences for livelihoods and the environment over time. To explore the interdependencies between agroforestry adoption, livelihoods, and the environment, an agent-based model adjusted to a case study area in rural Indonesia was implemented. Thereby, the model compares different scenarios, including a climate change scenario. The agroforestry system under investigation consists of an illipe (Shorea stenoptera) rubber (Hevea brasiliensis) mix, which are both locally valued tree species. The simulations reveal that farmers who adopt agroforestry diversify their livelihood portfolio while increasing income. Additionally, the model predicts environmental benefits: enhanced biodiversity and higher carbon sequestration in the landscape. The benefits of agroforestry for livelihoods and nature gain particular importance in the climate change scenario. The results therefore provide policy-makers and practitioners with insights into the dynamic economic and environmental advantages of promoting agroforestry.

Sign in / Sign up

Export Citation Format

Share Document