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Gerhard Helle
Gerhard Helle
Helmholtz Zentrum Potsdam, Deutsches Geoforschungszentrum GFZ
Verified email at gfz-potsdam.de
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The twentieth century was the wettest period in northern Pakistan over the past millennium
KS Treydte, GH Schleser, G Helle, DC Frank, M Winiger, GH Haug, ...
Nature 440 (7088), 1179-1182, 2006
6202006
A network of terrestrial environmental observatories in Germany
S Zacharias, H Bogena, L Samaniego, M Mauder, R Fuß, T Pütz, ...
Vadose zone journal 10 (3), 955-973, 2011
4912011
Water-use efficiency and transpiration across European forests during the Anthropocene
DC Frank, B Poulter, M Saurer, J Esper, C Huntingford, G Helle, K Treydte, ...
Nature Climate Change 5 (6), 579-583, 2015
4212015
Beyond CO2‐fixation by Rubisco – an interpretation of 13C/12C variations in tree rings from novel intra‐seasonal studies on broad‐leaf trees
G Helle, GH Schleser
Plant, Cell & Environment 27 (3), 367-380, 2004
4132004
Isotope signals as climate proxies: the role of transfer functions in the study of terrestrial archives
GH Schleser, G Helle, A Lücke, H Vos
Quaternary Science Reviews 18 (7), 927-943, 1999
2721999
Tracing carbon and oxygen isotope signals from newly assimilated sugars in the leaves to the tree‐ring archive
A Gessler, E Brandes, N Buchmann, G Helle, H Rennenberg, RL Barnard
Plant, cell & environment 32 (7), 780-795, 2009
2522009
Long tree‐ring chronologies reveal 20th century increases in water‐use efficiency but no enhancement of tree growth at five Iberian pine forests
L ANDREU‐HAYLES, O Planells, E Gutierrez, E Muntan, G Helle, ...
Global Change Biology 17 (6), 2095-2112, 2011
2282011
Signal strength and climate calibration of a European tree‐ring isotope network
K Treydte, D Frank, J Esper, L Andreu, Z Bednarz, F Berninger, T Boettger, ...
Geophysical Research Letters 34 (24), 2007
2262007
Response of climate-growth relationships and water use efficiency to thinning in a Pinus nigra afforestation
D Martín-Benito, M Del Río, I Heinrich, G Helle, I Cañellas
Forest Ecology and Management 259 (5), 967-975, 2010
1952010
A novel approach for the homogenization of cellulose to use micro‐amounts for stable isotope analyses
W Laumer, L Andreu, G Helle, GH Schleser, T Wieloch, H Wissel
Rapid Communications in Mass Spectrometry: An International Journal Devoted …, 2009
1952009
Annual cyclicity in high‐resolution stable carbon and oxygen isotope ratios in the wood of the mangrove tree Rhizophora mucronata
A Verheyden, G Helle, GH Schleser, F Dehairs, H Beeckman, N Koedam
Plant, Cell & Environment 27 (12), 1525-1536, 2004
1562004
Impact of climate and CO2 on a millennium-long tree-ring carbon isotope record
KS Treydte, DC Frank, M Saurer, G Helle, GH Schleser, J Esper
Geochimica et Cosmochimica Acta 73 (16), 4635-4647, 2009
1542009
Climate signals in tree-ring width, density and δ13C from larches in Eastern Siberia (Russia)
AV Kirdyanov, KS Treydte, A Nikolaev, G Helle, GH Schleser
Chemical geology 252 (1-2), 31-41, 2008
1372008
A novel device for batch-wise isolation of α-cellulose from small-amount wholewood samples
T Wieloch, G Helle, I Heinrich, M Voigt, P Schyma
Dendrochronologia 29 (2), 115-117, 2011
1262011
Tree height strongly affects estimates of water-use efficiency responses to climate and CO2 using isotopes
RJW Brienen, E Gloor, S Clerici, R Newton, L Arppe, A Boom, S Bottrell, ...
Nature Communications 8 (1), 288, 2017
1142017
Multiple tree-ring chronologies (ring width, δ13C and δ18O) reveal dry and rainy season signals of rainfall in Indonesia
K Schollaen, I Heinrich, B Neuwirth, PJ Krusic, RD D'Arrigo, O Karyanto, ...
Quaternary Science Reviews 73, 170-181, 2013
1102013
Environmental history of the German Lower Rhine Embayment during the Middle Miocene as reflected by carbon isotopes in brown coal
A Lücke, G Helle, GH Schleser, I Figueiral, V Mosbrugger, TP Jones, ...
Palaeogeography, Palaeoclimatology, Palaeoecology 154 (4), 339-352, 1999
1101999
Placing unprecedented recent fir growth in a European‐wide and Holocene‐long context
U Büntgen, W Tegel, JO Kaplan, M Schaub, F Hagedorn, M Bürgi, ...
Frontiers in Ecology and the Environment 12 (2), 100-106, 2014
1082014
Climate signals derived from cell anatomy of Scots pine in NE Germany
W Liang, I Heinrich, S Simard, G Helle, ID Liñán, T Heinken
Tree physiology 33 (8), 833-844, 2013
892013
Relationship between wood anatomy, tree-ring widths and wood density of Pinus sylvestris L. and climate at high latitudes in northern Sweden
C Pritzkow, I Heinrich, H Grudd, G Helle
Dendrochronologia 32 (4), 295-302, 2014
792014
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