Encontros Scientia

Soil-plant-atmosphere interactions in a tropical montane cloud forest

Sala 2.2.14, FCUL, Lisboa

Por Rafael Oliveira (UNICAMP).

Tropical montane cloud forests (TMCF) play an important role in regional hydrology as they can ‘comb’ the sky for moisture, stripping out droplets of water from clouds and thus contributing to water inputs. In tropical montane regions, some models project an increase in the height of cloud formation (“cloud-uplift”) and higher evapotranspiration as a consequence of increasing earth surface temperatures. These changes may affect TMCF structure and functioning in a number of ways, including drought induced mortality of some tree species. Detailed information on TMCF function, including seasonal dynamics, vulnerability to perturbation and response to climate variability is urgently needed, on several timescales for a range of end uses. In this talk, I will present an overview of our ongoing research program at TMCFs in southeastern Brazil. In this project we are investigating how key forest ecosystem processes (carbon uptake and storage, tree transpiration and water stripping from clouds) are affected by climatic variation temporally, across seasons, and spatially (from forest interior to edge). Additionally, we are investigating the links between tree hydraulic traits, forest resilience to drought and maintenance of sapflow. Our approach combine novel suites of sensors to capture complimentary/synergistic information about trees and fine-scale microclimatic variation in a wireless sensor network to provide detailed and reliable real-time coverage of contrasting environments. Long term and high-quality data on water and carbon dynamics, including: soil water dynamics, tree sapflow, fine-scale and high resolution tree growth dynamics in a range of micrometeorological conditions from intact forest interiors to forest edges and pastures. These data will allow us to better predict environmental impacts from land use change and develop more robust models with stronger predictive ability (e.g. hydrological and atmosphere-biosphere general circulation models).

12h00-13h00
cE3c - Centro de Ecologia, Evolução e Alterações Ambientais

Speaker: Lucio Boccardo (Università di Roma La Sapienza).

To get access to the password, please register on the website or contact one of the organizers.

Objectives: provide students with statistical knowledge and tools to manipulate, analyze and visualize biological data with R. Introduction to modeling, simulations and Bayesian statistics.

Apresentações de João Cordovil (Centro de Filosofia das Ciências da Universidade de Lisboa / Ciências ULisboa) e Diana Barbosa (Comcept - Comunidade Céptica Portuguesa).

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Candidaturas a decorrer até ao dia 15 de julho de 2020.

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O prémio IN3+ destina-se a todos os investigadores pertencentes às entidades que integram a Rede Inovação INCM.

Cancelamento motivado pela aplicação do plano de contingência da Faculdade de Ciências da Universidade de Lisboa, na sequência das orientações da Direção-Geral de Saúde e das recomendações por parte da Reitoria da Universidade de Lisboa, relativamente ao novo Coronavírus (COVID-1

New date: September 14th-16th, 2020.

Ciências ULisboa associa-se ao maior evento mundial sobre inovação para a sustentabilidade - “The Planetiers World Gathering” - que terá lugar no Altice Arena entre 21 e 23 de outubro de 2020, sob os auspícios da

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Overview: Currently, climate changes or alterations are known to be reflected on the stable isotope ratios of Hydrogen, Nitrogen, Carbon, Oxygen and Sulphur present in atmospheric gas forms, fresh or ocean water, as well as in plants and animals and organi

New date: 30 August - 03 September 2021.

This conference is the 22nd in the series of triennial conferences which bring together the Particle and Nuclear Physics communities.