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 81
Page 6
... production in the vicinity of fine roots and thus enhance the availability of PO4 for uptake by fine roots . In fact , the combined action of surficial fine roots and mycorrhizae fungi has been shown to retain nearly 100 % of added 32p ...
... production in the vicinity of fine roots and thus enhance the availability of PO4 for uptake by fine roots . In fact , the combined action of surficial fine roots and mycorrhizae fungi has been shown to retain nearly 100 % of added 32p ...
Page 9
... production systems in the Amazon must be designed in such a way to mimic the structure of the original forest and its natural nutrient conserving mechanisms . Carbon storage The consequences of deforestation , land management , and ...
... production systems in the Amazon must be designed in such a way to mimic the structure of the original forest and its natural nutrient conserving mechanisms . Carbon storage The consequences of deforestation , land management , and ...
Page 11
... production and delivery to the river system . The combined primary production of macro- phytes , forests , periphyton , and plankton associated with floodplain lakes is estimated at 117 Tg C yr , of which only 24 % is remineralized in ...
... production and delivery to the river system . The combined primary production of macro- phytes , forests , periphyton , and plankton associated with floodplain lakes is estimated at 117 Tg C yr , of which only 24 % is remineralized in ...
Page 13
... production of leaf litter in the basin's forests until the arrival of the final refractory OM in the mainstem river . Within the model , coarse particulate OM is transported to the river system via quick overland hydrological flowpaths ...
... production of leaf litter in the basin's forests until the arrival of the final refractory OM in the mainstem river . Within the model , coarse particulate OM is transported to the river system via quick overland hydrological flowpaths ...
Page 14
... production within the diatom community . Further - more , the bulk of this Si is not retained on the Amazon shelf but is instead transported offshore where it contributes to the nutrient needs of open - water plankton . The river is ...
... production within the diatom community . Further - more , the bulk of this Si is not retained on the Amazon shelf but is instead transported offshore where it contributes to the nutrient needs of open - water plankton . The river is ...
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