Programm (PDF)Kolloquiums-Mailingliste für Interessierte / Hinweise für Vortragende / Hinweise für Einladende (PDF, intern)
Zoom-Link für den hybriden Kolloquiums-Termin am 02.12.2021

Vortragsreihe Ökologie und Umweltforschung WS 2021/22

Donnerstag 12:15-13:45 H8, GEO


Prof. Dr. Aaron Thompson
Department of Crop and Soil Sciences, University of Georgia, USA (Homepage)
Donnerstag, 02.12.2021 12:15-13:45 :

How iron oxidation can direct the fate of organic matter and iron mineral composition in redox dynamic soils

Fe(II) oxidation by O2 is an important process generating Fe (oxyhydr)oxides, which play sorptive, structural and electron-transfer roles in soils. These roles in turn can have strong implications for the fate of organic matter, particularly in redox-dynamic soils in which Fe oxidation events are quite common. Leveraging a variety of different experiments using surface and subsurface soils from the Calhoun and Luquillo Experimental Forests (formerly Critical Zone Observatories) we explore how the rate of Fe(II) oxidation (modulated by O2 concentration), the length of Fe(II) oxidizing conditions (i.e., amount of oxic exposure), and the presence of various surfaces and organic complexing agents during Fe oxidation have implications for organic matter mineralization and composition as well as for the evolution of Fe minerals in soils. Collectively, our data suggests that while Fe reduction is often a driver of elemental release and organic matter transformation, this process is strongly influenced by the characteristics of prior Fe(II) oxidation events.


*** invited by Prof. Stefan Peiffer, Hydrology



Export as iCal: Export iCal
zurück zur Liste
DatumVortragenderTitel

21.10.2021
Dr. Vincent Merckx
Research Group Leader Understanding Evolution, Naturalis Biodiversity Center, Leiden, Netherlands
Mycoheterotrophy: an uncharted carbon flux in the plant world [Abstract]
online
28.10.2021
Dr. Daniel Veres
Romanian Academy, Institute of Speleology, 400006 Cluj-Napoca, Romania
High levels of lead pollution in the Balkans from the Early Bronze Age to the Industrial Revolution [Abstract]
Freitag
Raum S103, FAN
10:00-16:15
29.10.2021

Fachvorträge Bewerbungsverfahren Leitung Bayreuther Zentrum für stabile Isotope in der Ökologie und Biogeochemie (BayCenSI) [Abstract]

04.11.2021
Dr. Magdalena Mair
Research Group Leader Statistical Ecotoxicology, Animal Ecology I, BayCEER, UBT
Challenges in environmental hazard assessment – Demonstrating the absence of effects and predicting toxicity for untested materials [Abstract]
hybrid
18.11.2021
Dr. Shravan Kumar Muppa
Micrometeorology, BayCEER, UBT
Investigating local topographic effects on the stable boundary layer structure in mountainous terrain using large eddy simulations [Abstract]
online-only
25.11.2021
Dr. Jan Jansa
Laboratory of Fungal Biology, Institute of Microbiology of the Czech Academy of Sciences, Prague
Arbuscular mycorrhizal hyphosphere as a soil nutrient turnover hotspot [Abstract]

02.12.2021
Prof. Dr. Aaron Thompson
Department of Crop and Soil Sciences, University of Georgia, USA
How iron oxidation can direct the fate of organic matter and iron mineral composition in redox dynamic soils [Abstract]
postponed to summer `22
09.12.2021
Prof. Dr. Nadia Soudzilovskaia
Associate Professor, Universiteit Leiden & Professor Ecosystem Functioning, Hasselt University Belgium
Understanding mycorrhizal functions across scales [Abstract]
verschoben auf SS 2022
16.12.2021
Prof. Dr. Michael Hauhs
Ecological Modelling, BayCEER, UBT
Abschiedsvorlesung: Wozu lassen sich Modelle von Ökosystemen verwenden? [Abstract]

13.01.2022
Prof. Dr. Jeroen Buters
Zentrum Allergie und Umwelt (ZAUM), Technische Universität und Helmholtz Zentrum München
Allergens in the air we breathe: relevance, avoidance and effect of climate change [Abstract]

20.01.2022
Prof. Dr. Eva Jakob
Institute for Entrepreneurship and Innovation, Social Entrepreneurship, UBT
Solving social and ecological challenges by starting a business? How social entrepreneurial teams create new solutions

27.01.2022

BayCEER Mitgliederversammlung
Terminplanung und Vortragsarchiv BayCEER Kolloquium (seit 2008) sowie Geoökologisches Kolloquium (ab 2001)
Aktuelle Termine


BayCEER-Kolloquium:
Do. 09.12.2021
Understanding mycorrhizal functions across scales
Do. 16.12.2021
Abschiedsvorlesung: Wozu lassen sich Modelle von Ökosystemen verwenden?
Digitale Vortragsreihe KlimaDiskurse (bayklif):
Di. 14.12.2021
Tropisches Eis? Die Macht der Kunst im Kampf um 1.5°
Di. 11.01.2022
Wie gelingt die Energiewende? Soziale Innovationen als Motor der Transformation
Ökologisch-Botanischer Garten:
So. 02.01.2022
Führung | Mit kühlem Kopf ins Neue: Winterspaziergang
Wetter Versuchsflächen
Luftdruck (356m): 959.6 hPa
Lufttemperatur: 0.0 °C
Niederschlag: 0.7 mm/24h
Sonnenschein: 2 h/d
Wind (Höhe 17m): 13.3 km/h
Wind (Max.): 25.2 km/h
Windrichtung: SO

...mehr
Globalstrahlung: 53 W/m²
Lufttemperatur: -2.6 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 0.0 km/h

...mehr
Diese Webseite verwendet Cookies. weitere Informationen