Title page for etd-0828106-174229


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URN etd-0828106-174229
Author Wen-Jing Wu
Author's Email Address No Public.
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Department Marine Environment and Engineering
Year 2005
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Distribution and characteristics of black carbon in
sediments of Kao-ping Coastal Areas
Date of Defense 2006-07-19
Page Count 120
Keyword
  • Love River
  • Chianjen River
  • loading
  • Kao-ping coastal area
  • core
  • sediment
  • flux
  • polycyclic aromatic hydrocarbons
  • black carbon
  • Kao-ping estuary
  • Abstract The objective of this study was to investigate the spatial and temporal
    distribution of black carbon (BC) and possible sources by analyzing BC contents
    in core and sediment trap samples collected from Kao-ping submarine Canyon and
    surficial sediments collected from Love River, Chianjen River, Kaohsiung Harbor,
    Kao-ping River and adjacent coastal area. In addition, sediment core and trap
    samples of Kao-ping submarine Canyon, and suspended solids of Kao-ping
    estuary were analyzed to estimate the BC loading from Kao-ping River and the
    flux in Kao-ping submarine Canyon.
    The concentrations of BC ranged from 0.38 to 3.29 mg g-1 in this study. The
    results we found in coastal sediments were comparable to those in Asia, but lower
    than those in America and Europe. Black carbon found in surficial sediments of
    D2, L1 and of stations from Love River, Chianjen River and Kaohsiung Harbor
    were contributed from vehicle emission or coal combustion. Correlation
    coefficients of BC versus total polycyclic aromatic hydrocarbon (PAH)
    concentrations, combustion PAHs, total organic carbon (TOC) and grain size were
    significant in the sediments of Kao-ping River adjacent coast.
    Regrading to the temporal distribution of BC in Kao-ping submarine Canyon,
    BC and PAHs increased in the deposited sediment after 1970, that was probably
    related to prosperous industrial activities for last decades in Taiwan.
    Surficial sediments could be grouped into three clusters by hierarchical cluster
    analysis (HCA). Results of principal component analysis (PCA) showed principal
    component 1 (PC 1) could explain 35 % of total variances. Significant PC 1
    compound loadings were found mostly from high molecular weight PAHs which
    derived mainly from combustion processes. This result was supported by the
    significant correlation (p<0.05) of PC 1 scores versus BC concentrations which
    were also mainly derived from combustion.
    BC fluxes for sediment cores, S1 and S37, and sediment trap of Kao-ping
    submarine Canyon, 0.59 g m-2 yr-1, 2.03 g m-2 yr-1 and 23 g m-2 yr-1, respectively,
    were comparable to those reported for surficial sediments in literature. However,
    BC fluxes in this study were lower than those in the sediments from Mouth of
    Providence River, Palos Verdes Shelf and New England Harbors, but higher than
    those in pelagic sediments of the Pacific Ocean. In addition, we also measured BC
    concentrations in suspended solid samples to estimate loadings of Kao-ping
    estuary which ranged from 33 to 1765 kg day-1 with an average of 602 kg day-1.
    Annual BC loading of Kao-ping River was roughly estimated as 29.55×104 tons
    which was lower than that of the Mississippi River.
    Advisory Committee
  • none - chair
  • none - co-chair
  • none - co-chair
  • Chon-Lin Lee - advisor
  • Files
  • etd-0828106-174229.pdf
  • indicate accessible in a year
    Date of Submission 2006-08-28

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