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A Simple Apparatus for Obtaining Multiple Soil Atmosphere Samples from a Single Bore Hole
Author(s) -
Jorgensen Jacques R.
Publication year - 1974
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1974.03615995003800030045x
Subject(s) - atmosphere (unit) , environmental science , pinus <genus> , soil science , diffusion , porosity , loblolly pine , simple (philosophy) , geology , geotechnical engineering , botany , meteorology , biology , physics , philosophy , epistemology , thermodynamics
Soil atmosphere samples for analysis by gas chromatography can be obtained from reservoirs of Micro‐Por 100, a porous plastic tubing. These reservoirs have a large surface area through which diffusion can occur to obtain representative samples from specific soil areas. The apparatus is simple, low cost, and easily installed. In a loblolly pine ( Pinus taeda L.) plantation, CO 2 concentrates in the soil atmosphere increased from ambient at the surface to 1.2% at a depth of 60 cm.