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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/25/3/JEQ0250030601
Last checked: 12/12/2016
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Notes: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Fukui, Yoshiko;
Doskey, Paul V. |
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| Author Affiliation: | Environmental Research Division, Argonne National Lab., 9700 South Cass Ave., IL 60439 |
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| Title: | An enclosure technique for measuring nonmethane organic compound emissions from grasslands |
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| Source: | Journal of Environmental Quality. Vol. 25, No. 3, May/June 1996, p. 601-610. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Techniques; Measurement; Surface area of soil materials; Organic matter; Grasslands; Analytical methods
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| Abstract/Contents: | "A static chamber technique for measuring emissions of nonmethane organic compounds (NMOCs) from soil surfaces and herbaceous vegetation in a natural setting has been developed. The technique involves the insertion of a polymethyl methacrylate frame into the ground. A polycarbonate chamber is placed in a water-containing trough on the frame to seal the chamber to the surface. The soil surface and vegetation are covered for various lengths of time, and samples of the chamber air are passively collected in preevacuated stainless steel canisters. The samples are analyzed in the laboratory by a whole-air cryogenic-preconcentration/high-resolution gas chromatographic technique with flame ionization detection. Changes in the concentrations of the NMOCs with time in the chamber are used to derive emission rate. The technique is sensitive and precise, but the occasional observation of nonlinear changes in NMOS concentrations in the chamber with the length of the covering period limits the accuracy of emission rates derived by this technique. Despite this limitation, the method is effective for identifying NMOC emissions and investigating seasonal variations of emission rates." |
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| Language: | English |
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| References: | 46 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fukui, Y., and P. V. Doskey. 1996. An enclosure technique for measuring nonmethane organic compound emissions from grasslands. J. Environ. Qual. 25(3):p. 601-610. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/25/3/JEQ0250030601
Last checked: 12/12/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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