Pearl Mzobe
Doktorand
Bearing the brunt of warming: Interactions between carbon and hydrology in northern Sweden
Författare
Summary, in English
This study was conducted in a subarctic catchment with mixed vegetation cover and a permafrost thaw gradient to understand the spatio-temporal changes in the biogeochemical cycle. The Normalized Vegetation Difference Index (NDVI), together with easily available topographical indices, was used to model the DOC release into streams using GIS analysis and linear regression methods.
The results of this research show that DOC is concentrated in the low-lying areas of Stordalen catchment. The distribution of DOC was largely controlled by topographic factors, in particular slope and the presence of mires. This study points to a largely unexplored potential of using geospatial analysis methods to capture and represent responses to climate change. Applying geospatial techniques provides a first step spatio-temporal approach to present phase shifts in the broader scale of catchment carbon cycling.
Avdelning/ar
- Institutionen för naturgeografi och ekosystemvetenskap
Publiceringsår
2021
Språk
Engelska
Dokumenttyp
Doktorsavhandling
Förlag
Media-Tryck, Lund University, Sweden
Ämne
- Earth and Related Environmental Sciences
Nyckelord
- dissoved organic carbon (DOC)
- carbon flux
- permafrost thaw
- hydrological connectivity
- GIS analysis
Status
Published
Handledare
- Andreas Persson
- Martin Berggren
- Petter Pilesjö
ISBN/ISSN/Övrigt
- ISBN: 978-91-89187-08-5
- ISBN: 978-91-89187-07-8
Försvarsdatum
9 september 2021
Försvarstid
15:00
Försvarsplats
Pangea, Lund Join via zoom: https://lu-se.zoom.us/j/62094023285
Opponent
- Sally McIntyre (Professor)