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
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Page 23
... occurs almost at the end of December , while north of the equator rainfall is apparently tied to Northern Hemisphere summer and does not occur until mid - April . The withdrawal of the rainy season progresses toward the north , but ...
... occurs almost at the end of December , while north of the equator rainfall is apparently tied to Northern Hemisphere summer and does not occur until mid - April . The withdrawal of the rainy season progresses toward the north , but ...
Page 24
... occur during the austral summertime rainy season . The dry pells last between 5 days and 3 weeks and have a strong effect on agriculture if they occur near the beginning of the rainy season . Figure 2.4a- b shows the daily rainfall from ...
... occur during the austral summertime rainy season . The dry pells last between 5 days and 3 weeks and have a strong effect on agriculture if they occur near the beginning of the rainy season . Figure 2.4a- b shows the daily rainfall from ...
Page 25
... occurred over central and eastern Amazonia , while small positive anomalies occurred over western Amazonia . During the fall ( Fig . 2.6d ) , large negative rainfall anomalies are observed over western and central Amazonia , and ...
... occurred over central and eastern Amazonia , while small positive anomalies occurred over western Amazonia . During the fall ( Fig . 2.6d ) , large negative rainfall anomalies are observed over western and central Amazonia , and ...
Page 27
... occurs progressively later for rivers toward the east of the country and northern South America ( Poveda and Mesa 1997 ) . The impacts of La Niña are more pronounced than those of El Niño ; however , there are instances in which ...
... occurs progressively later for rivers toward the east of the country and northern South America ( Poveda and Mesa 1997 ) . The impacts of La Niña are more pronounced than those of El Niño ; however , there are instances in which ...
Page 34
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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