The Biogeochemistry of the Amazon BasinMichael E. McClain, Reynaldo Victoria, Jeffrey E. Richey Oxford University Press, 2001 M11 8 - 384 pages With a complex assemblage of largely intact ecosystems that support the earth's greatest diversity of life, the Amazon basin is a focal point of international scientific interest. And, as development and colonization schemes transform the landscape in increasing measure, scientists from around the world are directing attention to questions of regional and global significance. Some of these qustions are: What are the fluxes of greenhouse gases across the atmospheric interface of ecosystems? How mush carbon is stored in the biomass and soils of the basin? How are elements from the land transferred to the basin's surface waters? What is the sum of elements transferred from land to ocean, and what is its marine "fate"? This book of original chapters by experts in chemical and biological oceanography, tropical agronomy and biology, and the atmospheric sciences will address these and other important questions, with the aim of synthesizing the current knowledge of biochemical processes operating within and between the various ecosystems in the Amazon basin. |
From inside the book
Results 1-5 of 65
Page 4
... similar level of adaptive sophistication , which enables a rich diversity of organisms to flourish in spite of modest nutrient inputs from lowland terrestri- al systems . The bounty of aquatic resources and water itself provides many ...
... similar level of adaptive sophistication , which enables a rich diversity of organisms to flourish in spite of modest nutrient inputs from lowland terrestri- al systems . The bounty of aquatic resources and water itself provides many ...
Page 5
... similar reductions . This threat is amplified by the results of a growing number of large- scale modeling efforts , which consistently show a decrease in precipitation due to deforestation . The combined effects of these disturbances ...
... similar reductions . This threat is amplified by the results of a growing number of large- scale modeling efforts , which consistently show a decrease in precipitation due to deforestation . The combined effects of these disturbances ...
Page 7
... Similar pat- terns were observed for emissions of NO and N2O gases . These sharply reduced rates of N cycling raise the question of whether N might become limiting under certain conditions in Amazon pastures or secondary forests . As ...
... Similar pat- terns were observed for emissions of NO and N2O gases . These sharply reduced rates of N cycling raise the question of whether N might become limiting under certain conditions in Amazon pastures or secondary forests . As ...
Page 20
... similar seasonal cycle . The heaviest rainfall and lowest OLR occurs over southern Amazonia . Annual variation of rainfall is linked to annual changes in large - scale upper - air circulation , and surface oceanic conditions have ...
... similar seasonal cycle . The heaviest rainfall and lowest OLR occurs over southern Amazonia . Annual variation of rainfall is linked to annual changes in large - scale upper - air circulation , and surface oceanic conditions have ...
Page 26
... similar or just a bit larger than average . The discharges during the La Niña years show values that are near average . In principle , the records at Obidos should reflect the rainfall regimes from the Negro River , together with the ...
... similar or just a bit larger than average . The discharges during the La Niña years show values that are near average . In principle , the records at Obidos should reflect the rainfall regimes from the Negro River , together with the ...
Contents
3 | |
17 | |
3 The Atmospheric Component of Biogeochemical Cycles in the Amazon Basin | 42 |
4 Soil versus Biological Controls on Nutrient Cycling in Terra Firme Forests | 53 |
5 Nutrient Cycling as a Function of Landscape and Biotic Characteristics in the Cerrados of Central Brazil | 68 |
6 Linking Biogeochemical Cycles to Cattle Pasture Management and Sustainability in The Amazon Basin | 84 |
7 Nutrient Considerations in the Use of Silviculture for Land Development and Rehabilitation in the Amazon | 106 |
8 Extractive Reserves and Participatory Research as Factors in the Biogeochemistry of the Amazon Basin | 122 |
11 Carbon Storage in Biomass and Soils | 165 |
12 Terrestrial Inputs to Amazon Streams and Internal Biogeochemical Processing | 185 |
13 Geoecological Controls on Elemental Fluxes in Communities of Higher Plants in Amazonian floodplains | 209 |
14 Biogeochemistry of Amazon Floodplain Lakes and Associated Wetlands | 235 |
15 Organic Matter and Nutrients in the Mainstem Amazon River | 275 |
16 Trace Elements in the Mainstem Amazon River | 307 |
Changes in Dissolved and Particulate Fluxes During RiverOcean Mixing | 328 |
Index | 359 |
9 The Recovery of Biomass Nutrient Stocks and DeepSoil Functions in Secondary Forests | 139 |
10 The Interface Between Economics and Nutrient Cycling in Amazon Land Development | 156 |
Other editions - View all
The Biogeochemistry of the Amazon Basin Michael E. McClain,Reynaldo Victoria,Jeffrey E. Richey Limited preview - 2001 |
Common terms and phrases
aboveground aerosol Amazon basin Amazon floodplain lakes Amazon River Amazon shelf Amazonia aquatic atmosphere biogenic Biogeochemical Cycles Biogeochemistry biomass Brazil Brazilian Amazon catchment central Amazon cerrado chemical climate composition concentrations Cuevas deforestation DeMaster Devol dissolved dry season dynamics Ecology ecosystems elements emissions estimated extractive reserves extractivist Fearnside fertility flood floodplain flux Forsberg Furch global groundwater herbaceous hydrological igapó increase inputs J. E. Richey Journal km² Lake Calado land Lesack Limnology litter macrophytes mainstem Manaus Marengo mineral mol d-¹ Negro River Nepstad nitrogen Nobre nutrient cycling Óbidos organic carbon organic matter Oxisols oxygen Pará Paragominas particulate pasture periphyton phosphorus Piedade plant plantations primary production processes rain forest rainfall rates recycling region Rio Negro riverine root seabed secondary forest sediments soil Solimões species stream studies surface Table terrestrial tion trees tributaries tropical forests uptake várzea vegetation yr¹ µmol