[572] - Analysis of spatio-temporal patterns of CO2 and H2O fluxes in crop fields

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Kupisch, M., 2012. Analysis of spatio-temporal patterns of CO2 and H2O fluxes in crop fields. PhD Report, Institute of Crop Science and Resource Conservation, INRES, University Bonn, Bonn, Germany. Accessed from https://www.tr32db.uni-koeln.de/data.php?dataID=572 at 2019-07-20.
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Title(s):Main Title: Analysis of spatio-temporal patterns of CO2 and H2O fluxes in crop fields
Description(s):Abstract: Understanding the spatio-temporal variability of gas exchange of CO2 and water vapour at field level is necessary for accurate simulation of crop growth in fields with heterogeneous growing conditions and for parameterizing soil-vegetation-atmosphere transfer (SVAT) models. Accordingly, relationships between the spatio-temporal patterns of assimilation and transpiration rates and environmental (e.g. soil) heterogeneity are of specific interest. Therefore, gas-exchange was measured at different points in winter wheat and sugar beet fields both at leaf and at canopy level in a nearly biweekly cycle during the growing seasons 2010 and 2011. The results revealed a strong spatial heterogeneity of carbon and water canopy fluxes across the fields. While canopy measurements had a temporal variability with distinct diurnal and seasonal patterns, within the fields and between the crops, the temporal (and spatial) variability of leaf level photosynthesis and transpiration was comparably small. Our results indicate that it is important to consider field heterogeneity for parameterizing large-scale SVAT models.
Responsible Party
Creator(s):Author: Moritz Kupisch
Publisher:CRC/TR32 Database (TR32DB)
TR32 Topic:Vegetation
Subject(s):CRC/TR32 Keywords: PhD Report
File Details
File Name:Report1_Kupisch_2012.pdf
Data Type:Text
File Size:1536 kB (1.5 MB)
Date(s):Available: 2012-04-05
Mime Type:application/pdf
Data Format:PDF
Download Permission:OnlyTR32
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
North:-no map data
Measurement Region:Other
Measurement Location:--Other--
Specific Informations - Report
Report Date:5th of April, 2012
Report Type:PhD Report
Report City:Bonn, Germany
Report Institution:Institute of Crop Science and Resource Conservation, INRES, University Bonn
Number Of Pages:32
Period of Pages:1 - 32
Further Informations:TR32 Student Report Phase II
Metadata Details
Metadata Creator:Moritz Kupisch
Metadata Created:2013-11-28
Metadata Last Updated:2013-11-28
Funding Phase:2
Metadata Language:English
Metadata Version:V40
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