Where soil physics meets biology; A biophysical perspective to understand soil inner space ecology

PhD defense, Thursday 6 April 2017. Lasantha Herath

2017.04.06 | Steffi Hjerrild Iversen

Lasantha Indika Herath Herath Mudiyanselage

During his studies, Lasantha Herath researched how does the physical complexity of the soil matrix created by soil texture, structure and moisture control the microenvironment for soil bacteria. A cross-disciplinary approach linking soil physics with biology was used to examine the biophysical interactions at agricultural field sites at Silstrup, Estrup, and Hygum in Denmark and Upernaviarsuk in Greenland.

The new research findings contribute to the understanding the interactions and interconnections between soil physical structure and soil biological and chemical processes. Furthermore, the results obtained from the study suggested that the soil texture significantly influences the variation in soil bacterial diversity and its community structure. The ratio between clay and OC, known as the Dexter ratio (n), was the best predictor of bacterial richness and diversity.

The PhD degree was completed at the Department of Agroecology, Graduate school of Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.


Time: Thursday 6 April 2017 at 10:00
Place
: Auditorium, AU Foulum, Blichers All 20, 8830 Tjele
Title of Dissertation:
Linking Soil Physics with High Throughput Sequencing: Influence of Soil Texture, Structure and Anthropogenic Stress on Soil Microbial Communities
Contact information:
Lasantha Herath, lasantha.herath@agro.au.dk, lasanthaherath@ymail.com, +94713179817
Members of the assessment committee:

Professor Angeles Sanroman, Department of Chemical Engineering, University of Vigo, Spain
Associate Professor Niels Iversen, Department of Chemistry and Bioscience, Aalborg University, DK
Associate Professor Bernd Wollenweber (chair), Department of Agroecology, Aarhus University, DK
Main supervisor:
Professor Lis Wollesen de Jonge, Department of Agroecology, Aarhus University
Co-supervisors:

Professor Per Møldrup, Department of Civil Engineering, Aalborg University,
Associate Professor Mogens Nicolaisen, Department of Agroecology, Aarhus University
Language:
The PhD dissertation will be defended in English

The defence is public.
The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, build. 1520, room 128-134

PhD defence
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Revised 19.05.2017