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Title: Variability in regional wheat yields as a function of climate, soil and economic variables: Assessing the risk of confounding
Authors: Bakker, MM ×
Govers, Gerard
Ewert, F
Rounsevell, M
Jones, R #
Issue Date: Nov-2005
Publisher: Elsevier science bv
Series Title: Agriculture ecosystems & environment vol:110 issue:3-4 pages:195-209
Abstract: Mechanisms that explain spatial variability and trends in agricultural productivity at the regional scale are not well understood. Statistical approaches may be used to relate crop yields and trends in crop yields to changes in the economic and bio-physical environment. However, potential yield-explaining variables tend to confound at the regional scale due to strong correlations between these variables, which complicates the interpretation of such empirically derived relationships. In this paper, we assess relationships between different physical and economic variables and yields and trends in yields at the regional scale along a climatic gradient in Europe. We assess the extent of confounding (i.e. confusing the roles of different variables due to strong correlations) among these variables and the associated risk for explaining yield variability and trends in yields.
URI: 
ISSN: 0167-8809
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geography & Tourism
× corresponding author
# (joint) last author

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