rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Bioavailable organic carbon in wetland soils across a broad climogeographic area
  name:
    name part: Baker, Andrew Dwight.
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 2002
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    form: remote
    extent: x, 133 leaves : illustrations ; 28 cm.
  abstract: Soils from a broad climogeographic region of the U.S., ranging from Alaska to Louisiana and Texas, were obtained from the NRCS National Soils Laboratory in Lincoln, Nebraska. Soils were also collected in the summer of 1996 from upland and poorly drained areas in northern Alaska for comparison of biological properties and to determine the effects of drying on estimation of microbial biomass and activity. Air-dried soils were moistened and incubated 48 h, during which time CO₂ evolution was measured. Following the preincubation, microbial biomass was determined using a modification of the chloroform-fumigation-incubation method to accommodate limited sample quantity. Carbohydrates were determined using bicinchoninic acid reagent and total extractable carbon was determined by analysis of 0.5-M K₂SO₄ extracts with a total carbon analyzer. The objectives of this study were to elucidate geographical trends and meaningful relationships between the bioavailable C parameters. Soil microbial biomass, determined by chloroform fumigation incubation, correlated best with organic C and basal respiration with subtraction of unfumigated controls. Extraction of C with hot water was a rapid, simple procedure that provided the best predictor of soil respiration. Potassium sulfate-extractable carbon was consistently lower than hot water extractable C. Soils from northern states tended to contain more organic carbon than soils in southern states, however, not necessarily more bioavailable C. Detecting geographical trends for bioavailable C proved more difficult due to numerous factors such as topographic position, surface vegetation, climate, and land use.
  note: by Andrew Dwight Baker.
  note: "Major subject: Soil Science".
  note: Vita.
  note: Also available online.
  note: Issued also on microfiche from Lange Micrographics.
  note: M.S. Texas A&M University 2002
  note: Includes bibliographical references (leaves 74-82).
  subject:
    topic: Major soil science
  identifier: https://hdl.handle.net/1969.1/ETD-TAMU-2002-THESIS-B353
  related item:
    location:
      url: https://hdl.handle.net/1969.1/ETD-TAMU-2002-THESIS-B353
  record info:
    record content source: TXA
    record creation date: 021203
    record change date: 20220103114425.0
    record identifier: in00001714626