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Dr. Sophia Etzold
Function
scientific staff member
Contact
Swiss Federal Research Institute WSL
Zürcherstrasse 111
8903 Birmensdorf
Site
Birmensdorf Bi HL D 27
Research activities
My research interest ranges from the small scale of tree physiological processes to the large scale of forest ecosystem carbon budgeting, concerning changing climatic conditions.
Currently, I am studying responses of forest ecosystems to changing environmental conditions using Swiss and European long-term monitoring data. Some of the topics I am investigating are:
- The impact of air quality (N deposition and ozone) and climate change on forest growth in European monitoring plots (ECLAIRE)
- The impact of drought on tree mortality in Swiss forests (Relative mortality)
- The carbon allocation in trees during mast and non-mast years in Europe (Seeds-C)
FURTHER INFORMATION
Publications WSL
Scientific publication article peer reviewed
Bose, A.K.; Rigling, A.; Gessler, A.; Hagedorn, F.; Brunner, I.; Feichtinger, L.; Bigler, C.; Egli, S.; Etzold, S.; Gossner, M.M.; Guidi, C.; Lévesque, M.; Meusburger, K.; Peter, M.; Saurer, M.; Scherrer, D.; Schleppi, P.; Schönbeck, L.; Vogel, M.E.; ... Schaub, M., 2022: Lessons learned from a long‐term irrigation experiment in a dry Scots pine forest: impacts on traits and functioning. Ecological Monographs, 92, 2: e1507 (18 pp.). doi: 10.1002/ecm.1507
Etzold, S.; Sterck, F.; Bose, A.K.; Braun, S.; Buchmann, N.; Eugster, W.; Gessler, A.; Kahmen, A.; Peters, R.L.; Vitasse, Y.; Walthert, L.; Ziemińska, K.; Zweifel, R., 2022: Number of growth days and not length of the growth period determines radial stem growth of temperate trees. Ecology Letters, 25, 2: 427-439. doi: 10.1111/ele.13933
Zhu, J.; Thimonier, A.; Etzold, S.; Meusburger, K.; Waldner, P.; Schmitt, M.; Schleppi, P.; Schaub, M.; Thormann, J.; Lehmann, M.M., 2022: Variation in leaf morphological traits of European beech and Norway spruce over two decades in Switzerland. Frontiers in Forests and Global Change, 4: 778351 (17 pp.). doi: 10.3389/ffgc.2021.778351
Zweifel, R.; Etzold, S.; Basler, D.; Bischoff, R.; Braun, S.; Buchmann, N.; Conedera, M.; Fonti, P.; Gessler, A.; Haeni, M.; Hoch, G.; Kamen, A.; Koechli, R.; Maeder, M.; Nievergelt, D.; Peter, M.; Peters, R.L.; Schaub, M.; Trotsiuk, V.; ... Eugster, W., 2021: TreeNet - the biological drought and growth indicator network. Frontiers in Forests and Global Change, 4: 776905 (14 pp.). doi: 10.3389/ffgc.2021.776905
Zweifel, R.; Sterck, F.; Braun, S.; Buchmann, N.; Eugster, W.; Gessler, A.; Häni, M.; Peters, R.L.; Walthert, L.; Wilhelm, M.; Ziemińska, K.; Etzold, S., 2021: Why trees grow at night. New Phytologist, 231, 6: 2174-2185. doi: 10.1111/nph.17552
Bose, A.K.; Scherrer, D.; Camarero, J.J.; Ziche, D.; Babst, F.; Bigler, C.; Bolte, A.; Dorado-Liñán, I.; Etzold, S.; Fonti, P.; Forrester, D.I.; Gavinet, J.; Gazol, A.; González de Andrés, E.; Karger, D.N.; Lebourgeois, F.; Lévesque, M.; Martínez-Sancho, E.; Menzel, A.; ... Rigling, A., 2021: Climate sensitivity and drought seasonality determine post-drought growth recovery of Quercus petraea and Quercus robur in Europe. Science of the Total Environment, 784: 147222 (13 pp.). doi: 10.1016/j.scitotenv.2021.147222
Nussbaumer, A.; Gessler, A.; Benham, S.; De Cinti, B.; Etzold, S.; Ingerslev, M.; Jacob, F.; Lebourgeois, F.; Levanic, T.; Marjanović, H.; Nicolas, M.; Ostrogović Sever, M.Z.; Priwitzer, T.; Rautio, P.; Roskams, P.; Sanders, T.G.M.; Schmitt, M.; Šrámek, V.; Thimonier, A.; ... Rigling, A., 2021: Contrasting resource dynamics in mast years for European Beech and oak — A continental scale analysis. Frontiers in Forests and Global Change, 4: 689836 (17 pp.). doi: 10.3389/ffgc.2021.689836
Zweifel, R.; Etzold, S.; Sterck, F.; Gessler, A.; Anfodillo, T.; Mencuccini, M.; Von Arx, G.; Lazzarin, M.; Haeni, M.; Feichtinger, L.; Meusburger, K.; Knuesel, S.; Walthert, L.; Salmon, Y.; Bose, A.K.; Schoenbeck, L.; Hug, C.; De Girardi, N.; Giuggiola, A.; ... Rigling, A., 2020: Determinants of legacy effects in pine trees - implications from an irrigation-stop experiment. New Phytologist, 227, 4: 1081-1096. doi: 10.1111/nph.16582
Van Sundert, K.; Radujković, D.; Cools, N.; De Vos, B.; Etzold, S.; Fernández‐Martínez, M.; Janssens, I.; Merilä, P.; Peñuelas, J.; Sardans, J.; Stendahl, J.; Terrer, C.; Vicca, S., 2020: Towards comparable assessment of the soil nutrient status across scales - review and development of nutrient metrics. Global Change Biology, 26, 2: 392-409. doi: 10.1111/gcb.14802
Gharun, M.; Hörtnagl, L.; Paul-Limoges, E.; Ghiasi, S.; Feigenwinter, I.; Burri, S.; Marquardt, K.; Etzold, S.; Zweifel, R.; Eugster, W.; Buchmann, N., 2020: Physiological response of Swiss ecosystems to 2018 drought across plant types and elevation. Philosophical Transactions of the Royal Society B: Biological Sciences, 375, 1810: 20190521 (10 pp.). doi: 10.1098/rstb.2019.0521
Etzold, S.; Ferretti, M.; Reinds, G.J.; Solberg, S.; Gessler, A.; Waldner, P.; Schaub, M.; Simpson, D.; Benham, S.; Hansen, K.; Ingerslev, M.; Jonard, M.; Karlsson, P.E.; Lindroos, A.; Marchetto, A.; Manninger, M.; Meesenburg, H.; Merilä, P.; Nöjd, P.; ... De Vries, W., 2020: Nitrogen deposition is the most important environmental driver of growth of pure, even-aged and managed European forests. Forest Ecology and Management, 458: 117762 (13 pp.). doi: 10.1016/j.foreco.2019.117762
Burri, S.; Haeler, E.; Eugster, W.; Haeni, M.; Etzold, S.; Walthert, L.; Braun, S.; Zweifel, R., 2019: How did Swiss forest trees respond to the hot summer 2015?. Erde, 150, 4: 214-229. doi: 10.12854/erde-2019-420
Rigling, A.; Etzold, S.; Bebi, P.; Brang, P.; Ferretti, M.; Forrester, D.; Gärtner, H.; Gessler, A.; Ginzler, C.; Moser, B.; Schaub, M.; Stroheker, S.; Trotsiuk, V.; Walthert, L.; Zweifel, R.; Wohlgemuth, T., 2019: Wie viel Trockenheit ertragen unsere Wälder? Lehren aus extremen Trockenjahren. In: Bründl, M.; Schweizer, J. (eds), 2019: Lernen aus Extremereignissen. Forum für Wissen 2019: Lernen aus Extremereignissen, Davos, Switzerland. 39-51.
Etzold, S.; Ziemińska, K.; Rohner, B.; Bottero, A.; Bose, A.K.; Ruehr, N.K.; Zingg, A.; Rigling, A., 2019: One century of forest monitoring data in Switzerland reveals species- and site-specific trends of climate-induced tree mortality. Frontiers in Plant Science, 10: 307 (19pp.). doi: 10.3389/fpls.2019.00307
Knüsel, S.; Conedera, M.; Zweifel, R.; Bugmann, H.; Etzold, S.; Wunder, J., 2018: High growth potential of Ailanthus altissima in warm and dry weather conditions in novel forests of southern Switzerland. Trees: Structure and Function, 33, 2: 395-409. doi: 10.1007/s00468-018-1785-x
Klesse, S.; Etzold, S.; Frank, D., 2016: Integrating tree-ring and inventory-based measurements of aboveground biomass growth: research opportunities and carbon cycle consequences from a large snow breakage event in the Swiss Alps. European Journal of Forest Research, 135, 2: 297-311. doi: 10.1007/s10342-015-0936-5
Camino-Serrano, M.; Graf Pannatier, E.; Vicca, S.; Luyssaert, S.; Jonard, M.; Ciais, P.; Guenet, B.; Gielen, B.; Peñuelas, J.; Sardans, J.; Waldner, P.; Etzold, S.; Cecchini, G.; Clarke, N.; Galic, Z.; Gandois, L.; Hansen, K.; Johnson, J.; Klinck, U.; ... Janssens, I.A., 2016: Trends in soil solution dissolved organic carbon (DOC) concentrations across European forests. Biogeosciences, 13, 19: 5567-5585. doi: 10.5194/bg-13-5567-2016
Nussbaumer, A.; Waldner, P.; Etzold, S.; Gessler, A.; Benham, S.; Thomsen, I.M.; Jørgensen, B.B.; Timmermann, V.; Verstraeten, A.; Sioen, G.; Rautio, P.; Ukonmaanaho, L.; Skudnik, M.; Apuhtin, V.; Braun, S.; Wauer, A., 2016: Patterns of mast fruiting of common beech, sessile and common oak, Norway spruce and Scots pine in Central and Northern Europe. Forest Ecology and Management, 363: 237-251. doi: 10.1016/j.foreco.2015.12.033
Etzold, S.; Wunder, J.; Braun, S.; Rohner, B.; Bigler, C.; Abegg, M.; Rigling, A., 2016: Mortalité des arbres forestiers: causes et tendances. In: Pluess, A.R.; Augustin, S.; Brang, P.; Office fédéral de l’environnement OFEV,Berne; Institut fédéral de recherches sur la forêt (eds), 2016: Forêts et changements climatiques. Éléments pour des stratégies d'adaptation. Berne, Stuttgart, Vienne, Haupt. 183-203.
Waldner, P.; Thimonier, A.; Graf Pannatier, E.; Etzold, S.; Schmitt, M.; Marchetto, A.; Rautio, P.; Derome, K.; Nieminen, T.M.; Nevalainen, S.; Lindroos, A.; Merilä, P.; Kindermann, G.; Neumann, M.; Cools, N.; De Vos, B.; Roskams, P.; Verstraeten, A.; Hansen, K.; ... Minaya, M., 2015: Exceedance of critical loads and of critical limits impacts tree nutrition across Europe. Annals of Forest Science, 72, 7: 929-939. doi: 10.1007/s13595-015-0489-2
Churakova (Sidorova), O.V.; Eugster, W.; Zielis, S.; Cherubini, P.; Etzold, S.; Saurer, M.; Siegwolf, R.; Buchmann, N., 2014: Increasing relevance of spring temperatures for Norway spruce trees in Davos, Switzerland, after the 1950s. Trees: Structure and Function, 28, 4: 183-191. doi: 10.1007/s00468-013-0941-6
Zielis, S.; Etzold, S.; Zweifel, R.; Eugster, W.; Haeni, M.; Buchmann, N., 2014: NEP of a Swiss subalpine forest is significantly driven not only by current but also by previous year's weather. Biogeosciences, 11, 6: 1627-1635. doi: 10.5194/bg-11-1627-2014
Etzold, S.; Waldner, P.; Thimonier, A.; Schmitt, M.; Dobbertin, M., 2014: Tree growth in Swiss forests between 1995 and 2010 in relation to climate and stand conditions: recent disturbances matter. Forest Ecology and Management, 311: 41-55. doi: 10.1016/j.foreco.2013.05.040
Etzold, S.; Zweifel, R.; Ruehr, N.K.; Eugster, W.; Buchmann, N., 2013: Long-term stem CO2 concentration measurements in Norway spruce in relation to biotic and abiotic factors. New Phytologist, 197, 4: 1173-1184. doi: 10.1111/nph.12115
Etzold, S.; Ruehr, N.K.; Zweifel, R.; Dobbertin, M.; Zingg, A.; Pluess, P.; Häsler, R.; Eugster, W.; Buchmann, N., 2011: The carbon balance of two contrasting mountain forest ecosystems in Switzerland: similar annual trends, but seasonal differences. Ecosystems, 14, 8: 1289-1309. doi: 10.1007/s10021-011-9481-3
Further scientific publications
Zweifel, R.; Ginzler, C.; Psomas, A.; Braun, S.; Walthert, L.; Etzold, S., 2020: Baumwasserdefizite erreichten im Sommer 2018 Höchstwerte - war das aus dem All erkennbar?. Schweizerische Zeitschrift für Forstwesen, 172, 5: 302-305.
TreeNet ist ein Netzwerk zur Erfassung von Baumwachstums- und Baumwasserdefizit-Indikatoren und generiert laufend aktuelle Informationen über den Zusammenhang zwischen Umweltfaktoren und den physiologischen Prozessen von Einzelbäumen.
Download
Etzold, S.; Wunder, J.; Braun, S.; Rohner, B.; Bigler, C.; Abegg, M.; Rigling, A., 2016: Mortalität von Waldbäumen: Ursachen und Trends. In: Pluess, A.R.; Augustin, S.; Brang, P.; Bundesamt für Umwelt BAFU,Bern; Eidgenössische Forschungsanstalt für Wald,Schnee und Landschaft WSL,Birmensdorf (eds), 2016: Wald im Klimawandel. Grundlagen für Adaptationsstrategien. Bern, Stuttgart, Wien, Haupt. 177-197.
Boley, H.; Grütter, R.; Zou, G.; Athan, T.; Etzold, S., 2014: A Datalog+ RuleML 1.01 architecture for rule-based data access in ecosystem research. In: Bikakis, A.; Fodor, P.; Roman, D. (eds), 2014: Rules on the web. From theory to applications. 8th international symposium, RuleML 2014, Prague, Czech Republic, August 18-20, 2014. 112-126. doi: 10.1007/978-3-319-09870-8_8
Magazine article and brochures
Etzold, S.; Eugster, W.; Braun, S.; Thimonier, A.; Waldner, P.; Zweifel, R., 2021: Stickstoffdeposition - ab wann ist es zu viel für das Baumwachstum?. Wald und Holz, 102, 11: 15-18.
Zweifel, R.; Etzold, S.; Walthert, L.; Köchli, R.; Eugster, W., 2020: TreeNet – wann wachsen unsere Bäume?. Wald und Holz, 101, 5: 20-23.
Zweifel, R.; Etzold, S.; Braun, S.; Köchli, R.; Hoch, G.; Eugster, W.; Walthert, L., 2020: TreeNet - am Puls der Bäume. Wald und Holz, 101, 3: 31-33.