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Priesack, E. ; Kisser-Priesack, G.M.

Modelling diffusion and microbial uptake of 13C-glucose in soil aggregates.

Geoderma 56, 561-573 (1993)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
A deterministic model was developed to simulate the microbial utilization and diffusion of finite amounts of substrate from the surface of a model aggregate into the intra-aggregate pore spaces. Experiments were performed for comparison with the simulation results and to estimate the effective intra-aggregate diffusion coefficient for glucose. Glucose was applied to the surfaces of sterilized and nonsterilized aggregates and the induced 13CO2-respiration and radial glucose distribution were measured. ATP measurements show a developing radial gradient of microbial activity decreasing from the outer to the inner part of the aggregate.
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Publication type Article: Journal article
Document type Scientific Article
ISSN (print) / ISBN 0016-7061
e-ISSN 1872-6259
Journal Geoderma
Quellenangaben Volume: 56, Issue: 1-4, Pages: 561-573 Article Number: , Supplement: ,
Publisher Elsevier
Reviewing status Peer reviewed
Institute(s) Institute of Stem Cell Research (ISF)