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 77
Page 3
... natural ecosystems has revealed an unprecedented level of sophistication of adaptive mechanisms within the flora and fauna for conserving and accessing nutrients . Replacement of native vegetation with poorly adapted crops and pasture ...
... natural ecosystems has revealed an unprecedented level of sophistication of adaptive mechanisms within the flora and fauna for conserving and accessing nutrients . Replacement of native vegetation with poorly adapted crops and pasture ...
Page 4
... natural fisheries provide a large pro- portion , and sometimes the majority , of ani- mal protein consumed by inhabitants . Fish are also a valuable source of income to fishermen . River and lake water satisfies nearly all of the water ...
... natural fisheries provide a large pro- portion , and sometimes the majority , of ani- mal protein consumed by inhabitants . Fish are also a valuable source of income to fishermen . River and lake water satisfies nearly all of the water ...
Page 6
... natural mechanisms of nutrient recycling and conservation . Management practices imported to the region regularly fail because they are adapted to conditions different than those present in the Amazon . New practices must be developed ...
... natural mechanisms of nutrient recycling and conservation . Management practices imported to the region regularly fail because they are adapted to conditions different than those present in the Amazon . New practices must be developed ...
Page 7
... 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 feces in concentrated areas rather than uniformly ...
... 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 feces in concentrated areas rather than uniformly ...
Page 8
... natural nutrient conservation processes . Recognizing the special importance of organic nutrient pools in Amazon ecosystems , plantations can be used to produce mulch for effective nutrient application to crops or other managed lands ...
... natural nutrient conservation processes . Recognizing the special importance of organic nutrient pools in Amazon ecosystems , plantations can be used to produce mulch for effective nutrient application to crops or other managed lands ...
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