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Índice de adaptabilidade à economia verde: avaliação da cana-de-açúcar na microrregião de Ribeirão Preto/SP.

A Economia Verde (EV) é um assunto emergente no contexto das discussões científicas e políticas mundiais, tendo como principal desafio tornar as atividades econômicas em atividades sustentáveis. A cadeia produtiva da cana-de-açúcar envolve questões sociais, econômicas e ambientais controve...
  • por Portal Padrão
  • publicado
  • 20/04/2014
  • 2:01 PM

Caatinga, the Brazilian dry tropical forest: can it tolerate climate changes?.

Our review focuses on the projections of climate change in the Brazilian semiarid region, the Caatinga, based on recent publications about global climate change and biology. We found several vulnerable points in the initial estimates, the main one being that the data were collected and analyzed with...
  • por Portal Padrão
  • publicado
  • 20/03/2014
  • 4:23 PM

Analysis of plans, programs and policies to combat desertification in the state of Ceara – Brazil in the period 2004 to 2012

According to the State Program of Action to Combat Desertification and Mitigate the Effects of Drought (PAE/CE), the State of Ceara-Brazil has three centers configured with Areas Susceptible to Desertification which are the Hinterlands of Inhamuns, the Hinterlands Irauçuba and Center North and the ...
  • por Portal Padrão
  • publicado
  • 20/03/2014
  • 4:12 PM

Understanding the relationships between ecosystem services and poverty alleviation: a conceptual framework.

As interest grows in the contribution of ecosystem services to poverty alleviation, we present a new conceptual framework, synthesizing insights from existing frameworks in social-ecological systems science and international development. People have differentiated abilities to benefit from ecosystem...
  • por Portal Padrão
  • publicado
  • 20/03/2014
  • 3:21 PM

Variability of carbon and water fluxes following climate extremes over a tropical forest in southwestern Amazonia.

The carbon and water cycles for a southwestern Amazonian forest site were investigated using the longest time series of fluxes of CO2 and water vapor ever reported for this site. The period from 2004 to 2010 included two severe droughts (2005 and 2010) and a flooding year (2009). The effects of such...
  • por Portal Padrão
  • publicado
  • 21/02/2014
  • 1:12 PM

Lightning forecasting in southeastern Brazil using the WRF model.

This paper introduces a lightning forecasting method called Potential Lightning Region (PLR), which is the probability of the occurrence of lightning over a region of interest. The PLR was calculated using a combination of meteorological variables obtained from high-resolution Weather Research and F...
  • por Portal Padrão
  • publicado
  • 21/01/2014
  • 1:10 PM

High-speed video observations of natural cloud-to-ground lightning leaders: a statistical analysis.

The aim of this investigation is to analyze the phenomenology of positive and negative (stepped and dart) leaders observed in natural lightning from digital high-speed video recordings. For that intent we have used four different high-speed cameras operating at frame rates ranging from 1000 or 11,80...
  • por Portal Padrão
  • publicado
  • 20/01/2014
  • 4:39 PM

Pervasive transition of the Brazilian land-use system

Agriculture, deforestation, greenhouse gas emissions and local/regional climate change have been closely intertwined in Brazil. Recent studies show that this relationship has been changing since the mid 2000s, with the burgeoning intensification and commoditization of Brazilian agriculture. On one h...
  • por Portal Padrão
  • publicado
  • 20/01/2014
  • 3:35 PM