[1034] - Analysis of spatio-temporal patterns of CO2 and H2O fluxes in relation to crop growth under field conditions

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Kupisch, M., Stadler, A., Langensiepen, M., Ewert, F., 2014. Analysis of spatio-temporal patterns of CO2 and H2O fluxes in relation to crop growth under field conditions. Field Crops Research, .
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Title(s):Main Title: Analysis of spatio-temporal patterns of CO2 and H2O fluxes in relation to crop growth under field conditions
Description(s):Abstract: This study aimed at observing and analyzing spatial and temporal patterns of growth and CO2 and H2O fluxes in winter wheat (Triticum aestivum L.) and winter barley (Hordeum vulgare L.) under heterogeneous soil conditions. Canopy level gas exchange, dry matter, leaf area development and plant available water were measured for this purpose at eight different observation points in three consecutive years (2011 – 2013) in a 0.72 ha 21 farmer’s field with variable soil conditions. Results show that the dynamics of crop growth patterns and carbon and water fluxes can have a high spatial and inter-annual variability depending on the underlying water supply patterns. Vegetation patterns arise from responses of growth processes and LAI development to drought stress. Flux patterns could be linked to soil heterogeneity and leaf area development patterns. This has implications for the choice of scale and complexity in applying crop growth models at the field level, indicating a sensible and variable selection of model setup depending on the degree of present environmental drivers of plant growth and gas exchange.
Responsible Party
Creator(s):Author: Moritz Kupisch
Author: Anja Stadler
Author: Matthias Langensiepen
Author: Frank Ewert
Publisher:Elsevier, Amsterdam, the Netherlands
TR32 Topic:Vegetation
Subject(s):CRC/TR32 Keywords: Photosynthesis, Transpiration, Canopy Gas-Exchange, Spatial Heterogeneity
File Details
File Name:FIELD-S-14-00883-1.pdf
Data Type:Text
File Size:781 kB (0.763 MB)
Date(s):Date Submitted: 2014-07-23
Mime Type:application/pdf
Data Format:PDF
Download Permission:OnlyOwnSubproject
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:TR32DB Data policy agreement
Measurement Region:Ellebach
Measurement Location:Selhausen
Specific Informations - Publication
Article Type:Journal
Source:Field Crops Research
Metadata Details
Metadata Creator:Anja Stadler
Metadata Created:2014-09-05
Metadata Last Updated:2014-09-05
Funding Phase:2
Metadata Language:English
Metadata Version:V40
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