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Gayler, S. ; Klier, C. ; Mueller, C.W.* ; Weis, W.* ; Winkler, J.B. ; Priesack, E.

Analysing the role of soil properties, initial biomass and ozone on observed plant growth variability in a lysimeter study.

Plant Soil 323, 125-141 (2009)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
This simulation study is based on a lysimeter experiment with juvenile beech trees (Fagus sylvatica L.) which were grown under ambient or doubled ambient atmospheric ozone concentrations. The aim of the study was to analyze the role of differences in soil properties, differences in initial biomass and ozone impacts on observed plant growth variability at the eight lysimeters of this experiment. For this purpose, we established a new simulation model based on the model system Expert-N by coupling soil water and nitrogen transport models with the plant growth model PLATHO, which was already tested and applied for juvenile beech. In order to parameterize the soil model, for all lysimeters soil hydraulic parameters as well as carbon and nitrogen stocks were measured. Simulation results reveal that the observed decreased growth rates under elevated ozone are due to ozone impacts on plant growth, whereas the high plant growth variability between lysimeters is to a major part the consequence of differences in soil hydraulic properties. Differences in initial biomass are of minor importance to explain plant growth variability in this experiment.
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Publication type Article: Journal article
Document type Scientific Article
Editors Six, J.*
Corresponding Author
Keywords Simulation model; O3; Free air ozone fumigation; Water availability; Beech; Fagus sylvatica
ISSN (print) / ISBN 0032-079X
e-ISSN 1573-5036
Journal Plant and Soil
Quellenangaben Volume: 323, Issue: 1-2, Pages: 125-141 Article Number: , Supplement: ,
Publisher Springer
Publishing Place Netherlands
Non-patent literature Publications
Reviewing status Peer reviewed