[PDF] Change In The Amazon Basin eBook

Author : John Hemming
Publisher : Manchester University Press
Page : 316 pages
File Size : 43,80 MB
Release : 1985
Category : History
ISBN : 9780719009686

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Conference report on development projects, environmental dangers, agricultural production and agroforestry by indigenous peoples and historical change in the Amazonia river basin, Brazil - considers the impact of development projects on the living conditions of Andean Indian tribes, negative effects of deforestation, hydrologycal aspects of rainforest in the central Amazon tropical zone, etc.; includes a historical survey of the rubber boom. Bibliography, diagrams, maps, photographs, references, statistical tables.

Author : John Hemming
Publisher : Manchester University Press
Page : 316 pages
File Size : 20,1 MB
Release : 1985
Category : History
ISBN : 9780719009686

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Conference report on development projects, environmental dangers, agricultural production and agroforestry by indigenous peoples and historical change in the Amazonia river basin, Brazil - considers the impact of development projects on the living conditions of Andean Indian tribes, negative effects of deforestation, hydrologycal aspects of rainforest in the central Amazon tropical zone, etc.; includes a historical survey of the rubber boom. Bibliography, diagrams, maps, photographs, references, statistical tables.

Author : Walter Vergara
Publisher : World Bank Publications
Page : 116 pages
File Size : 27,6 MB
Release : 2010-11-11
Category : Technology & Engineering
ISBN : 0821386220

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The Amazon basin is a key component of the global carbon cycle. Not only is the old-growth rainforests in the basin huge carbon storage with about 120 billion metric tons of carbon in their biomass, but they also process annually twice the rate of global anthropogenic fossil fuel emissions through respiration and photosynthesis. In addition, the basin is the largest global repository of biodiversity and produces about 20 percent of the world s flow of fresh water into the oceans. Despite the large CO2 efflux from recent deforestation, the Amazon rainforest is still considered to be a net carbon sink or reservoir because vegetation growth on average exceeds mortality. However, current climate trends and human-induced deforestation may be transforming forest structure and behavior. Amazon forest dieback would be a massive event, affecting all life-forms that rely on this diverse ecosystem, including humans, and producing ramifications for the entire planet. Clearly, with changes at a global scale at stake, there is a need to better understand the risk, and dynamics of Amazon dieback. Therefore, the purpose of the book is to assist in understanding the risk, process and dynamics of potential Amazon dieback and its implications.

Author : Hector E. Maletta
Publisher :
Page : 0 pages
File Size : 22,73 MB
Release : 2017
Category :
ISBN :

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The future of the Amazon rainforest is a matter of much concern worldwide. On the one hand, climate change has been said to threaten the forest via possibly increased drought, prompting fires and fragmentation, accelerated by man-made deforestation. On the other hand, the Amazon forest itself is a major carbon store area, and carbon dioxide release from deforestation or forest degradation may strongly contribute to overall future carbon concentrations in the atmosphere, thus increasing global warming. Some authors have suggested the possibility of a catastrophic savannisation of the forest in a relatively short time due to the combination of several processes. This paper, based on available data and scientific results, and the climate projections of the Fourth (2007) report from the Intergovernmental Panel on Climate Change (IPCC), examines the evidence about past and current deforestation trends and about impacts upon the Amazon of expected climate changes, and concludes that rates of gross deforestation (covering all conversions of forest into non-forest areas) are much lower than previously thought and rapidly decreasing, and that net deforestation rates are even lower once account is taken of the increasing importance of planted forests and the part of deforestation occurring in secondary regrowth. Rates of deforestation (especially deforestation of primary forest) are expected to continue being low and declining. Catastrophic forecasts of rapid Amazon rainforest 'die-back' or savannisation, resting on the hypothesis of decreasing moisture in the Amazon basin, are also shown to lack sufficient scientific basis and to be not supported by IPCC climate projections, especially when such outcomes are predicted to occur in a few decades or during this century.

Author : Laszlo Nagy
Publisher : Springer
Page : 470 pages
File Size : 22,16 MB
Release : 2016-11-09
Category : Science
ISBN : 3662499029

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This book offers a panorama of recent scientific achievements produced through the framework of the Large-Scale Biosphere-Atmosphere programme (LBA) and other research programmes in the Brazilian Amazon. The content is highly interdisciplinary, with an overarching aim to contribute to the understanding of the dynamic biophysical and societal/socio-economic structure and functioning of Amazonia as a regional entity and its regional and global climatic teleconnections. The target readership includes advanced undergraduate and post-graduate students and researchers seeking to untangle the gamut of interactions that the Amazon’s complex biophysical and social system represent.

Author : Michael Keller
Publisher : John Wiley & Sons
Page : 1472 pages
File Size : 49,37 MB
Release : 2013-05-02
Category : Science
ISBN : 1118671511

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Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 186. Amazonia and Global Change synthesizes results of the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) for scientists and students of Earth system science and global environmental change. LBA, led by Brazil, asks how Amazonia currently functions in the global climate and biogeochemical systems and how the functioning of Amazonia will respond to the combined pressures of climate and land use change, such as Wet season and dry season aerosol concentrations and their effects on diffuse radiation and photosynthesis Increasing greenhouse gas concentration, deforestation, widespread biomass burning and changes in the Amazonian water cycle Drought effects and simulated drought through rainfall exclusion experiments The net flux of carbon between Amazonia and the atmosphere Floodplains as an important regulator of the basin carbon balance including serving as a major source of methane to the troposphere The impact of the likely increased profitability of cattle ranching. The book will serve a broad community of scientists and policy makers interested in global change and environmental issues with high-quality scientific syntheses accessible to nonspecialists in a wide community of social scientists, ecologists, atmospheric chemists, climatologists, and hydrologists.