Rigorosum Mahmuda Islam – 04.07.2019
Im Rahmen der mündlichen Doktorprüfung spricht
Impacts of climate on wood anatomical features in tree species with different anatomical structure from tropical monsoon Asia
Wood anatomical features in tree rings imprint environmental signals and provide the basis for studying the impact environmental changes on the physiology, ecology, and growth of trees. The South Asian moist tropical forests are strongly understudied in this regard. In my thesis, I studied the impact of climate variability and extreme drought events on the xylem vessel features of three South Asian tropical moist forest tree species by developing vessel and hydraulic traits chronologies and comparing them against climate variables. I found that vessel variables are highly sensitive to climate variability and extreme drought events. However, trees can cope with the water stress by increasing vessel density and decreasing vessel diameter (safety vs efficiency) and thus avoid cavitation induced hydraulic failure.
Wann: Dienstag, 04.07.19 um 10:00 Uhr
Wo: Institut für Geographie, Ort: 00.175 Seminarraum 2, Wetterkreuz 15
Betreuer: Prof. Dr. Achim Bräuning
Es ergeht herzliche Einladung!