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@ARTICLE{Giraud:891830,
author = {Giraud, Mona and Groh, Jannis and Gerke, Horst H. and
Brüggemann, Nicolas and Vereecken, Harry and Pütz, Thomas},
title = {{S}oil {N}itrogen {D}ynamics in a {M}anaged {T}emperate
{G}rassland {U}nder {C}hanged {C}limatic {C}onditions},
journal = {Water},
volume = {13},
number = {7},
issn = {2073-4441},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2021-01753},
pages = {931 -},
year = {2021},
abstract = {Grasslands are one of the most common biomes in the world
with a wide range of ecosystem services. Nevertheless,
quantitative data on the change in nitrogen dynamics in
extensively managed temperate grasslands caused by a shift
from energy- to water-limited climatic conditions have not
yet been reported. In this study, we experimentally studied
this shift by translocating undisturbed soil monoliths from
an energy-limited site (Rollesbroich) to a water-limited
site (Selhausen). The soil monoliths were contained in
weighable lysimeters and monitored for their water and
nitrogen balance in the period between 2012 and 2018. At the
water-limited site (Selhausen), annual plant nitrogen uptake
decreased due to water stress compared to the energy-limited
site (Rollesbroich), while nitrogen uptake was higher at the
beginning of the growing period. Possibly because of this
lower plant uptake, the lysimeters at the water-limited site
showed an increased inorganic nitrogen concentration in the
soil solution, indicating a higher net mineralization rate.
The N2O gas emissions and nitrogen leaching remained low at
both sites. Our findings suggest that in the short term,
fertilizer should consequently be applied early in the
growing period to increase nitrogen uptake and decrease
nitrogen losses. Moreover, a shift from energy-limited to
water-limited conditions will have a limited effect on
gaseous nitrogen emissions and nitrate concentrations in the
groundwater in the grassland type of this study because
higher nitrogen concentrations are (over-) compensated by
lower leaching rates},
cin = {IBG-3},
ddc = {690},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {217 - Für eine nachhaltige Bio-Ökonomie – von
Ressourcen zu Produkten (POF4-217) / 2173 -
Agro-biogeosystems: controls, feedbacks and impact
(POF4-217)},
pid = {G:(DE-HGF)POF4-217 / G:(DE-HGF)POF4-2173},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000638940300001},
doi = {10.3390/w13070931},
url = {https://juser.fz-juelich.de/record/891830},
}