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@ARTICLE{Bnecke:878674,
author = {Bönecke, Eric and Breitsameter, Laura and Brüggemann,
Nicolas and Chen, Tsu‐Wei and Feike, Til and Kage, Henning
and Kersebaum, Kurt‐Christian and Piepho, Hans‐Peter and
Stützel, Hartmut},
title = {{D}ecoupling of impact factors reveals the response of
{G}erman winter wheat yields to climatic changes},
journal = {Global change biology},
volume = {26},
number = {6},
issn = {1365-2486},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {FZJ-2020-02992},
pages = {3601 - 3626},
year = {2020},
abstract = {Yield development of agricultural crops over time is not
merely the result of genetic and agronomic factors, but also
the outcome of a complex interaction between climatic and
site‐specific soil conditions. However, the influence of
past climatic changes on yield trends remains unclear,
particularly under consideration of different soil
conditions. In this study, we determine the effects of
single agrometeorological factors on the evolution of German
winter wheat yields between 1958 and 2015 from 298 published
nitrogen (N)‐fertilization experiments. For this purpose,
we separate climatic from genetic and agronomic yield
effects using linear mixed effect models and estimate the
climatic influence based on a coefficient of determination
for these models. We found earlier occurrence of wheat
growth stages, and shortened development phases except for
the phase of stem elongation. Agrometeorological factors are
defined as climate covariates related to the growth of
winter wheat. Our results indicate a general and strong
effect of agroclimatic changes on yield development, in
particular due to increasing mean temperatures and heat
stress events during the grain‐filling period. Except for
heat stress days with more than 31°C, yields at sites with
higher yield potential were less prone to adverse weather
effects than at sites with lower yield potential. Our data
furthermore reveal that a potential yield levelling, as
found for many West‐European countries, predominantly
occurred at sites with relatively low yield potential and
about one decade earlier (mid‐1980s) compared to averaged
yield data for the whole of Germany. Interestingly, effects
related to high precipitation events were less relevant than
temperature‐related effects and became relevant
particularly during the vegetative growth phase. Overall,
this study emphasizes the sensitivity of yield productivity
to past climatic conditions, under consideration of regional
differences, and underlines the necessity of finding
adaptation strategies for food production under ongoing and
expected climate change.},
cin = {IBG-3},
ddc = {570},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32154969},
UT = {WOS:000526611500001},
doi = {10.1111/gcb.15073},
url = {https://juser.fz-juelich.de/record/878674},
}