Shrubland primary production and soil respiration diverge along European climate gradient
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Shrubland primary production and soil respiration diverge along European climate gradient. / Reinsch, Sabine; Koller, Eva; Sowerby, Alwyn; de Dato, Giovanbattista; Estiarte, Marc; Guidolotti, Gabriele; Kovács-Láng, Edit; Kröel-Dulay, György; Lellei-Kovács, Eszter; Larsen, Klaus Steenberg; Liberati, Dario; Peñuelas, Josep; Ransijn, Johannes; Robinson, David A.; Schmidt, Inger Kappel; Smith, Andrew R.; Tietema, Albert; Dukes, Jeffrey S.; Beier, Claus; Emmett, Bridget A.
In: Scientific Reports, Vol. 7, 43952, 2017.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Shrubland primary production and soil respiration diverge along European climate gradient
AU - Reinsch, Sabine
AU - Koller, Eva
AU - Sowerby, Alwyn
AU - de Dato, Giovanbattista
AU - Estiarte, Marc
AU - Guidolotti, Gabriele
AU - Kovács-Láng, Edit
AU - Kröel-Dulay, György
AU - Lellei-Kovács, Eszter
AU - Larsen, Klaus Steenberg
AU - Liberati, Dario
AU - Peñuelas, Josep
AU - Ransijn, Johannes
AU - Robinson, David A.
AU - Schmidt, Inger Kappel
AU - Smith, Andrew R.
AU - Tietema, Albert
AU - Dukes, Jeffrey S.
AU - Beier, Claus
AU - Emmett, Bridget A.
PY - 2017
Y1 - 2017
N2 - Above- and belowground carbon (C) stores of terrestrial ecosystems are vulnerable to environmental change. Ecosystem C balances in response to environmental changes have been quantified at individual sites, but the magnitudes and directions of these responses along environmental gradients remain uncertain. Here we show the responses of ecosystem C to 8-12 years of experimental drought and night-time warming across an aridity gradient spanning seven European shrublands using indices of C assimilation (aboveground net primary production: aNPP) and soil C efflux (soil respiration: Rs). The changes of aNPP and Rs in response to drought indicated that wet systems had an overall risk of increased loss of C but drier systems did not. Warming had no consistent effect on aNPP across the climate gradient, but suppressed Rs more at the drier sites. Our findings suggest that above- and belowground C fluxes can decouple, and provide no evidence of acclimation to environmental change at a decadal timescale. aNPP and Rs especially differed in their sensitivity to drought and warming, with belowground processes being more sensitive to environmental change.
AB - Above- and belowground carbon (C) stores of terrestrial ecosystems are vulnerable to environmental change. Ecosystem C balances in response to environmental changes have been quantified at individual sites, but the magnitudes and directions of these responses along environmental gradients remain uncertain. Here we show the responses of ecosystem C to 8-12 years of experimental drought and night-time warming across an aridity gradient spanning seven European shrublands using indices of C assimilation (aboveground net primary production: aNPP) and soil C efflux (soil respiration: Rs). The changes of aNPP and Rs in response to drought indicated that wet systems had an overall risk of increased loss of C but drier systems did not. Warming had no consistent effect on aNPP across the climate gradient, but suppressed Rs more at the drier sites. Our findings suggest that above- and belowground C fluxes can decouple, and provide no evidence of acclimation to environmental change at a decadal timescale. aNPP and Rs especially differed in their sensitivity to drought and warming, with belowground processes being more sensitive to environmental change.
U2 - 10.1038/srep43952
DO - 10.1038/srep43952
M3 - Journal article
C2 - 28256623
AN - SCOPUS:85014673286
VL - 7
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 43952
ER -
ID: 177290654