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@ARTICLE{Hu:837561,
author = {Hu, Bin and Zhou, Minghua and Bilela, Silvija and Simon,
Judy and Dannenmann, Michael and Liu, Xiping and Alfarraj,
Saleh and Hou, Lin and Chen, Hui and Zhang, Shuoxin and
Butterbach-Bahl, Klaus and Rennenberg, Heinz},
title = {{N}itrogen nutrition of native and introduced forest tree
species in {N}-limited ecosystems of the {Q}inling
{M}ountains, {C}hina},
journal = {Trees},
volume = {31},
number = {4},
issn = {1432-2285},
address = {Berlin},
publisher = {Springer},
reportid = {FZJ-2017-06449},
pages = {1189 - 1202},
year = {2017},
abstract = {Nitrogen availability and uptake capacity are key factors
influencing forest growth and development in N-limited
terrestrial ecosystems. With the aim to determine how
species and forest management affect tree N nutrition, we
conducted root N uptake experiments as well as soil N
analyses at three forest stands with different native and
introduced tree species (i.e. Larix principis-rupprechtii
Mayr., Quercus aliena var. acutiserrata Maxim. ex Wenz. and
Picea wilsonii Mast.) and two management approaches (i.e.
monoculture versus mixed stand) in the Qinling Mountains of
China. Across the native and introduced species studied, in
general, investigated trees take up both, organic and
inorganic N compounds, but prefer organic N (Gln- and Arg-)
over inorganic NH4+–N. The introduced conifer species (L.
principis-ruprechtii) showed higher root N acquisition
capacities compared to a native conifer species (P.
wilsonii) under N-limited conditions. Moreover, the mixed
forest stand with L. principis-ruprechtii and Q. alinea var.
acutesserata accumulated more nitrogen in soil pools and
showed improved C and N retention capability through the
whole soil profile as compared to the monocultures of P.
wilsonii or L. principis-ruprechtii. Similar acquisition
strategies were observed for specific N sources (i.e.
organic versus inorganic) across all investigated tree
species. Still the introduced species Larix exhibited a
superior root N acquisition capacity and, therefore, may be
a good candidate for afforestation programs in the studied
region. The present results underpin the significance of
forest management practices that achieve a mixed species
structure with broadleaved tree species such as Quercus for
restoration of soil C and N pools in order to stabilize
forest ecosystems and to achieve sustainable forest
development.},
cin = {IBG-3},
ddc = {580},
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},
UT = {WOS:000405685800007},
doi = {10.1007/s00468-017-1537-3},
url = {https://juser.fz-juelich.de/record/837561},
}