Biogeochemical Studies of Wintering Waterfowl in the Imperial and Sacremento Valleys PDF Download
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Author: Lawrence Livermore Laboratory
Publisher:
ISBN:
Category : Biogeochemical prospecting
Languages : en
Pages : 124
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Book Description
Author: Lawrence Livermore Laboratory
Publisher:
ISBN:
Category : Biogeochemical prospecting
Languages : en
Pages : 124
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Trace and major elemental composition were determined in the organs of wintering waterfowl in the Imperial and Sacramento Valleys of California, and in soils, sediments, and agricultural fertilizer that constitute the various sources of elements in the waterfowl. These data provide a biogeochemical baseline for waterfowl populations wintering in an area being developed for geothermal power. This baseline in the Imperial Valley is affected by soil and sediment composition, agricultural effluents in irrigation and stream water, and spent shot deposited by hunters in waterfowl habitats. The waterfowl acquire a set of trace elements from these sources and concentrations increase in their organs over the wintering period. Nickel, arsenic, selenium, bromine, and lead are the primary elements acquired from soil sources, agricultural effluents, and spent shot in the Imperial Valley. The assessment of effects from geothermal effluents on waterfowl populations in complex because there are large influxes of materials into the Imperial Valley ecosystem that contain trace elements, i.e., irrigation water, phosphatic fertilizers, pesticides, and lead shot. Multiple sources exist for many elements prominent in the expected geothermal effluents. The relationships between the two California valleys, the Imperial and Sacramento, are apparent in the trace element concentrations in the organs of waterfowl obtained in those two valleys. Arsenic is absent in the waterfowl organs obtained in the Sacramento Valley and relatively common in the Imperial Valley waterfowl. The effect of any release of geothermal effluent in the Imperial Valley waterfowl habitats will be difficult to describe because of the complexity of the biogeochemical baseline and the multiple sources of trace and major elements in the ecosystem.
Author:
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Category : Geothermal engineering
Languages : en
Pages : 520
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Category : Power resources
Languages : en
Pages : 228
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Author:
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Category : Lead
Languages : en
Pages : 354
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Category : Hydrology
Languages : en
Pages : 308
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Author: Frank A. Rinella
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Category : Freshwater ecology
Languages : en
Pages : 118
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Category : Science
Languages : en
Pages : 1414
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Author:
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Category : Drainage
Languages : en
Pages : 222
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Author: Larry C. Oglesby
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Category : Geology
Languages : en
Pages : 266
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