Dr. Patrick Schleppi

Function

Scientific staff member

Forest Soils and Biogeochemistry

Biogeochemistry

Contact

patrick.schleppi(at)wslto make life hard for spam bots.ch

+41 44 739 24 22+41 44 739 24 22

Swiss Federal Research Institute WSL
Zürcherstrasse 111
8903 Birmensdorf

Site

Birmensdorf Bi GL B 06

my education	i got my degree in agronomy in 1985 at the ETH Zurich, where i also made my doctoral thesis (in 1988 at the institute of plant sciences, now part of the institute of agricultural sciences); then i was one year at the ISU (Ames, IA, USA) for a post-doc; 1993, in parallel to my job, i followed a post-graduate course in applied statistics at the ETHZ
my research projects	about the effects of atmospheric nitrogen (N) deposition (research projects in the Alptal valley), further a project on interactions between CO₂ & N
the results	see my publication list
a software	i wrote a software to analyse hemispherical photographs (calculation of the leaf area index of forest canopies): this software is called Hemisfer
some useful links	in order to have it always at hand, here is also a periodic table of the elements i'm also maintaining an internet site of the Schleppi family
my favorite sport	cycling (member and volunteer of the Club des Cent Cols)

FURTHER INFORMATION

Projects

Carbon cycling in forest floors

The project quantifies carbon fluxes in forest floors along gradients in climate and bedrock in Switzerland and Germany. The approach is to measure radiocarbon contents in C pools and fluxes, and tracing isotopically labelled (13C, 15N, 2H) litter in the forest floor and in the mineral soil beneath.

Macro- and micro morphological reactions to low soil water availability in the foliage of Scots pine from Wallis

In this project, the structural changes in foliage of Scots pine are used as sensitive bioindications of environmental constraints to study the reactions of dry pine forests in Wallis to low soil water availability and changes in land use.

Nadelchemie der Fichte

Mit dem Projekt "Monitoring Flankierende Massnahmen Umwelt" (MFM-U) untersucht die Schweiz die Umwelt-Auswirkungen des Landverkehrsabkommens mit der EU sowie die Umwelt-Auswirkungen der flankierenden Massnahmen. Im diesem Teilprojekt stehen die Auswirkungen auf den Wald im Vordergrund.

CO2 and N availability (SCC Hofstetten)

The goal of the project is to measure the effect of an elevated CO2 concentration onto the availability of nutrients in the soil, especially nitrogen. Are nutirents becoming more and more a limiting factor as CO2 availability to trees increases?

Quality wood production

The WSL initiated together with other institutions a research program aiming at high quality chestnut timber by minimizing the costs and improving the functional features and the stability of the coppice stands.

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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

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

Templer, P.H.; Harrison, J.L.; Pilotto, F.; Flores-Díaz, A.; Haase, P.; McDowell, W.H.; Sharif, R.; Shibata, H.; Blankman, D.; Avila, A.; Baatar, U.; Bogena, H.R.; Bourgeois, I.; Campbell, J.; Dirnböck, T.; Dodds, W.K.; Hauken, M.; Kokorite, I.; Lajtha, K.; ... Taka, M., 2022: Atmospheric deposition and precipitation are important predictors of inorganic nitrogen export to streams from forest and grassland watersheds: a large-scale data synthesis. Biogeochemistry, 160: 219-241. doi: 10.1007/s10533-022-00951-7

Nouraei, A.; Jalilvand, H.; Hojjati, S.M.; Schleppi, P.; Alavi, S.J., 2022: Effects of artificial nitrogen deposition on the forest floor and soil chemistry in chestnut-leaved oak (Quercus castaneifolia) plantation in northern Iran. Canadian Journal of Forest Research, 52, 5: 808-818. doi: 10.1139/cjfr-2021-0331

Hilton, R.G.; Turowski, J.M.; Winnick, M.; Dellinger, M.; Schleppi, P.; Williams, K.H.; Lawrence, C.R.; Maher, K.; West, M.; Hayton, A., 2021: Concentration‐discharge relationships of dissolved rhenium in alpine catchments reveal its use as a tracer of oxidative weathering. Water Resources Research, 57, 11: e2021WR029844 (18 pp.). doi: 10.1029/2021WR029844

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Further scientific publications

Schleppi, P., 2019: Long-term experimental nitrogen addition to a subalpine Picea abies forest. In: 2019: Exkursionsführer Bern 2019. Erd-reich und Boden-Landschaften. Gemeinsame Jahrestagung der Bodenkundlichen Gesellschaft der Schweiz und der Deutschen Bodenkundlichen Gesellschaft, Bern. 154-162.

Schleppi, P.; Paquette, A., 2017: Solar radiation in forests: theory for hemispherical photography. In: Fournier, R.A.; Hall, R.J. (eds), 2017: Hemispherical photography in forest science: theory, methods, applications. Dordrecht, Springer. 15-52. doi: 10.1007/978-94-024-1098-3_2

Fleck, S.; Raspe, S.; Cater, M.; Schleppi, P.; Ukonmaanaho, L.; Greve, M.; Hertel, C.; Weis, W.; Rumpf, S.; Thimonier, A.; Chianucci, F.; Beckschäfer, P., 2016: Leaf area measurements. In: 2016: Manual on methods and criteria for harmonized sampling, assessment, monitoring and analysis of the effects of air pollution on forests. Eberswalde, UNECE, ICP Forests. (44 pp.).

Manetti, M.C.; Pelleri, F.; Becagli, C.; Conedera, M.; Schleppi, P.; Zingg, A., 2014: Growth dynamics and leaf area index in chestnut coppices subjected to a new silvicultural approach: Single-tree-oriented management. In: 2014: II European Congress on Chestnut, Debrecen, Hungary, July 2014. 121-128. doi: 10.17660/ActaHortic.2014.1043.15

Fleck, S.; Raspe, S.; Cater, M.; Schleppi, P.; Ukonmaanaho, L.; Greve, M.; Hertel, C.; Weis, W.; Rumpf, S., 2012: Part XVII. Leaf area measurements. In: UNECE ICP Forests Programme Co-ordinating Centre (eds), 2012: Manual on methods and criteria for harmonized sampling, assessment, monitoring and analysis of the effects of air pollution on forests. Hamburg, Thünen Institute for World Forestry. (36 pp.).

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