|Appears in Collections:||Biological and Environmental Sciences Journal Articles|
|Peer Review Status:||Refereed|
|Title:||A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve|
|Author(s):||Garnett, Mark H|
|Citation:||Garnett MH, Hartley I, Sommerkorn M & Wookey P (2009) A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve, Soil Biology and Biochemistry, 41 (7), pp. 1450-1456.|
|Abstract:||Radiocarbon analysis of soil CO2 can provide information on the age, source and turnover rate of soil organic C. We developed a new method for passively trapping respired CO2 on molecular sieve, allowing it to be returned to the laboratory and recovered for C isotope analysis. We tested the method on a soil at a grassland site, and using a synthetic soil created to provide a contrasting isotopic signature. As with other passive sampling techniques, a small amount of fractionation of the 13C isotope occurs during sampling, which we have quantified, otherwise the results show that the molecular sieve traps a sufficiently large and representative sample of CO2 for C isotope analysis. Since 14C results are routinely corrected for mass-dependent fractionation, our results show that passive sampling of soil respiration using molecular sieve offers a reliable method to collect soil-respired CO2 for 14C analysis.|
|Rights:||Published in Soil Biology and Biochemistry by Elsevier (Pergamon).|
|Revised submitted 30JAN09_SBB35711.pdf||571.27 kB||Adobe PDF||View/Open|
This item is protected by original copyright
Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
If you believe that any material held in STORRE infringes copyright, please contact email@example.com providing details and we will remove the Work from public display in STORRE and investigate your claim.