Marco Lehmann: Catalogue data in Autumn Semester 2021

Name Dr. Marco Lehmann
Eidg. Forschungsanstalt WSL
Zürcherstrasse 111
HL D35
8903 Birmensdorf ZH
Telephone+41 44 739 2199
DepartmentEnvironmental Systems Science

751-3700-00LPlant Ecophysiology Information 2 credits2VM. Gharun, M. Lehmann, A. Walter
AbstractThe general theme of this course is the effect of environmental factors (such as light, temperature, relative humidity, CO2 concentrations, etc.) on plant physiology: water uptake and transport, transpiration, CO2 gas exchange of plants (photosynthesis, respiration), growth and C allocation, yield and production, stress physiology. Lab and field measurements are is included.
ObjectiveThe students will understand the impact of environmental factors on plant physiology and will learn the theoretical basis and terminology of plant ecophysiology that is necessary to analyze yield potentials in agriculture. The students will learn about classical and latest studies in plant ecophysiology and will have hands-on experiences with equipment used in plant ecophysiology.
ContentDas Ziel vieler landwirtschaftlicher Managemententscheidungen, d. h., das Erhöhen der Produktivität und des Ertrages, basiert häufig auf Reaktionen der Pflanzen auf Umweltfaktoren, z. B. Nährstoff- und Wasserangebot, Licht, etc. Daher werden in diesem Kurs der Einfluss von Umweltfaktoren auf die pflanzliche Physiologie behandelt, z. B. auf den Gaswechsel von Pflanzen (Photosynthese, Atmung, Transpiration), auf die Nährstoff- und Wasseraufnahme und den -Transport in Pflanzen, auf das Wachstum, den Ertrag und die C-Allokation, auf die Produktion und Qualität der produzierten Biomasse. Anhand der wichtigsten Pflanzenarten in Schweizer Graslandökosystemen werden diese theoretischen Kenntnisse vertieft und Aspekte der Bewirtschaftung (Schnitt, Düngung, etc.) angesprochen.
Lecture notesHandouts stehen online.
LiteratureLarcher 1994, Lambers et al. 2008, Schulze et al. 2019
Prerequisites / NoticeDieser Kurs basiert auf Grundlagen der Pflanzenbestimmung und der Pflanzenphysiologie. Er ist Basis für die Veranstaltungen „Pflanzenbau, Teil Futterbau“ und „Graslandsysteme“.
751-5125-00LStable Isotope Ecology of Terrestrial Ecosystems Information Restricted registration - show details
Number of participants limited to 20.
2 credits2GR. A. Werner, N. Buchmann, A. Gessler, M. Lehmann
AbstractThis course provides an overview about the applicability of stable isotopes (carbon 13C, nitrogen 15N, oxygen 18O and hydrogen 2H) to process-oriented ecological research. Topics focus on stable isotopes as indicators for the origin of pools and fluxes, partitioning of composite fluxes as well as to trace and integrate processes. In addition, students carry out a small project during lab sessions.
ObjectiveStudents will be familiar with basic and advanced applications of stable isotopes in studies on plants, soils, water and trace gases, know the relevant approaches, concepts and recent results in stable isotope ecology, know how to combine classical and modern techniques to solve ecophysiological or ecological problems, learn to design, carry out and interpret a small IsoProject, practice to search and analyze literature as well as to give an oral presentation.
ContentThe analyses of stable isotopes often provide insights into ecophysiological and ecological processes that otherwise would not be available with classical methods only. Stable isotopes proved useful to determine origin of pools and fluxes in ecosystems, to partition composite fluxes and to integrate processes spatially and temporally.

This course will provide an introduction to the applicability of stable isotopes to ecological research questions. Topics will focus on carbon (13C), nitrogen (15N), oxygen (18O) and hydrogen (2H) at natural isotope abundance and tracer levels. Lectures will be supplemented by intensive laboratory sessions, short presentations by students and computer exercises.
Lecture notesHandouts will be available on the webpage of the course.
LiteratureWill be discussed in class.
Prerequisites / NoticeThis course is based on fundamental knowledge about plant ecophysiology, soil science, and ecology in general. Course will be taught in English.