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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Pathways, patterns and dynamics of dissolved organic carbon in a temperate forested swamp catchment

Dalva, Moshe January 1990 (has links)
Inputs of DOC in precipitation were low and increased with the passage of rainfall through different canopies. Throughfall, stemflow, leachates from A horizons and litterfall were identified as sources of DOC, while B and C horizons in upland areas provide a sink. Throughfall and stemflow displayed high temporal variability in DOC concentrations, while soil leachates and peat waters exhibited strong seasonal patterns. DOC concentrations in throughfall, stemflow and A horizons were highest in the predominantly coniferous site. In the fall, DOC concentrations from A horizons in the deciduous site were significantly higher than those from the coniferous site. / Factors influencing DOC in peat waters are: (1) peat thermal regime, (2) water chemistry, and (3) water table position. Large storms ($>$30 mm precipitation) appear to be the primary factor influencing exports of DOC in streamflow, particularly following dry antecedant soil moisture conditions. Slow rates of water movement through compact deep peats ($>$60 cm depth) and adsorption of DOC in B and C horizons of this catchment obstruct exports of DOC, which over the 5.5 month study period, were minimal in comparison to inputs.
62

Carbon flux in the temperate zooxanthellate sea anemone Anthopleura aureoradiata : a thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Master of Science in Marine Biology /

Gibbons, Christopher Lynton. January 2008 (has links)
Thesis (M.Sc.)--Victoria University of Wellington, 2008. / Includes bibliographical references.
63

Carbon and nitrogen cycling in the Peruvian Andean Amazon

Townsend-Small, Amy, January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.
64

Impacts of forest-to-agriculture conversion on aboveground and soil carbon and nitrogen stocks along a bioclimatic gradient in Costa Rica /

Jobse, Judith C. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 136-142). Also available on the World Wide Web.
65

Assessment of Pacific Ocean carbon production and export using measurements of dissolved oxygen isotopes and oxygen/argon gas ratios /

Juranek, Lauren Wray. January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 127-137).
66

Aboveground biomass and ecosystem carbon pools in tropical secondary forests growing in six life zones of Costa Rica /

Cifuentes-Jara, Miguel. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2008. / Printout. Includes bibliographical references. Also available on the World Wide Web.
67

Carbon cycling dynamics during succession in sagebrush steppe

Cleary, Meagan B. January 2007 (has links)
Thesis (Ph. D.)--University of Wyoming, 2007. / Title from PDF title page (viewed on July 15, 2008). Includes bibliographical references.
68

The impact of anthropogenic land-use change on soil organic carbon, Oporae Valley, Lake Tutira, New Zealand : a [thesis] submitted to the Victoria University of Wellington in partial fulfilment of the requirements for the degree of Master of Science in Physical Geography /

Boys, Roderick Charles James. January 2008 (has links)
Thesis (M.Sc.)--Victoria University of Wellington, 2008. / Includes bibliographical references.
69

Fluid inclusion evidence for metamorphic fluid evolution in the Black Hills, South Dakota /

Huff, Timothy A. January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 92-98). Also available on the Internet.
70

Macrozooplankton and micronekton in the Arabian Sea oxygen minimum zone /

Rapien, Mary. January 2004 (has links)
Thesis (Ph. D.)--University of Rhode Island, 2004. / Typescript. Includes bibliographical references (v. 2, leaves 467-485).

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