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 83
Page 5
... surface waters . The tight coupling of these processes is evidenced by the profound impacts that El Niño Southern Oscillation ( ENSO ) events have upon rainfall in the basin . Overall , the Amazon experiences reduced rainfall during ...
... surface waters . The tight coupling of these processes is evidenced by the profound impacts that El Niño Southern Oscillation ( ENSO ) events have upon rainfall in the basin . Overall , the Amazon experiences reduced rainfall during ...
Page 6
... surface and in the upper organic horizons of the soil column . Of this P , 50 % occurred in particulate organic matter with a mean residence time of 4 years . The remaining mineral - associated P cycled over much longer time periods or ...
... surface and in the upper organic horizons of the soil column . Of this P , 50 % occurred in particulate organic matter with a mean residence time of 4 years . The remaining mineral - associated P cycled over much longer time periods or ...
Page 7
... surface as litterfall , as would be the case in natural Amazon forests , P taken up by plants is returned to the soil surface mainly as animal feces . This , in turn , leads to problems of P distribution , as cattle tend to deposit ...
... surface as litterfall , as would be the case in natural Amazon forests , P taken up by plants is returned to the soil surface mainly as animal feces . This , in turn , leads to problems of P distribution , as cattle tend to deposit ...
Page 8
... surface . However , research from the central and eastern Amazon has shown that trees in seasonally dry forests also have roots extend- ing to at least 18 m depth ( Nepstad et al . 1994 ) . While the main function of these roots appears ...
... surface . However , research from the central and eastern Amazon has shown that trees in seasonally dry forests also have roots extend- ing to at least 18 m depth ( Nepstad et al . 1994 ) . While the main function of these roots appears ...
Page 9
... surface water to satisfy their household water needs and to provide fish and other aquatic plants and organisms for their nutritional needs . Water quality is intricately linked to biogeochemical reactions such as the dissolution and ...
... surface water to satisfy their household water needs and to provide fish and other aquatic plants and organisms for their nutritional needs . Water quality is intricately linked to biogeochemical reactions such as the dissolution and ...
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