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National Forests in the Amazon
Science, 2002Brazil9s government is currently implementing a policy for sustainable forest production within an expanded system of National Forests (Flonas). By 2010, 50 million hectares of new Flonas will be created. The scale of this initiative is equivalent to the 1908 establishment of the U.S. National Forest system and is unprecedented in the tropics.
Adalberto Veríssimo +2 more
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Amazon sugar cane: A threat to the forest
Science, 2018Amazonia's vegetation ranges from dense forests to savanna areas, and the region's forests and their biodiversity are vulnerable to the ongoing advance of land-use change for agriculture and ranching ([ 1 ][1]).
L., Ferrante,, Fearnside, Philip Martin
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Forest Biological Resources in the Amazon Basin
2004The Amazon region holds the world’s largest area of tropical rain forest which was settled by the first humans during the Late Pleistocene. A strong anthropogenic impact began in the 1960s when large areas of the tropical forest were cleared. To protect this ecosystem, sustainable utilization of its biological resources is urgently needed.
Kreibich, H., Kern, J.
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‘Tipping points’ for the Amazon forest
Current Opinion in Environmental Sustainability, 2009The stability of the Amazon forest–climate equilibrium is being perturbed by a number of human drivers of change (e.g. deforestation, global warming, forest fires, higher CO2 concentrations, and increased frequency of droughts and floods). Quantitative assessments for the maintenance of the tropical forest indicate that ‘tipping points’ may exist for ...
Carlos Afonso Nobre +1 more
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A Risky Forest Policy in the Amazon?
Science, 2003In their Policy Forum “National forests in the Amazon” (30 Aug., p. [1478][1]), A. Verissimo et al. seem assured that a new system of national forests will solve the problems of uncontrolled forest exploitation in the Brazilian Amazon. Unfortunately, we are far less optimistic.
Frank D. Merry +3 more
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Apogeotropic Roots in an Amazon Rain Forest
Science, 1987Roots of some tropical trees grow vertically upward on the stems of neighboring trees. Apogeotropic roots occur in 12 species across five families. These roots, originating as fine roots in the mineral soil, grow upward as fast as 5.6 centimeters in 72 hours.
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Leaf seasonality in Amazon forests
Science, 2016Forest Ecology Models assume that lower precipitation in tropical forests means less plant-available water and less photosynthesis. Direct measurements in the Amazon, however, show that production remains constant or increases in the dry season. To investigate this mismatch, Wu et al.
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Use of Passive Microwaves Over the Amazon Forest
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium, 2005In this study, an attempt is made to derive the evolution of the water status of the Amazon forest canopy over a short period, from satellite microwave radiometry. The Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) temperature corrected tapes data are analysed for the 6.6, 10.7, 18 and 37 GHz frequencies, at daytime and nighttime, for the ...
Calvet, J.C. +4 more
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Women of the Amazon Forest and Citizenship
Health Care for Women International, 2005At each meeting of the International Council on Women's Health Issues (ICOWHI), an award is given to a researcher from a developing country in recognition of her work to improve health care practice in her country. The Taylor & Francis Lectureship Award is funded by the Taylor & Francis Publishing Company to help the award winner to attend the ICOWHI ...
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Territoriality and resistance in the amazon forest
2023Resumen Considerada uno de los mayores bienes naturales del territorio brasileño y de la humanidad, la selva amazónica sufre profundos cambios estructurales: conflictos territoriales, extracción de minerales y relación con la minería aurífera. Este artículo tiene como objetivo abordar cómo se produce la resistencia de las comunidades tradicionales en ...
Arruda, Fernanda Aparecida Antunes de +2 more
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