BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Vrije Universiteit Amsterdam//NONSGML v1.0//EN NAME:PhD defence M.M.R. Martyn Rosco METHOD:PUBLISH BEGIN:VEVENT DTSTART:20260930T154500 DTEND:20260930T171500 DTSTAMP:20260930T154500 UID:phd-defence-m-m-r-martyn-rosco@8F96275E-9F55-4B3F-A143-836282E12573 CREATED:20260924T123647 LOCATION:Main building VU, 1105, Auditorium, De Boelelaan, 1081 HV, Amsterdam SUMMARY:PhD defence M.M.R. Martyn Rosco X-ALT-DESC;FMTTYPE=text/html:

Freshwater Carbon Ac ross Arctic Lowland Tundra Ecosystems

This research focuse s on understanding the role of freshwater ecosystems in carbon cyclin g across Arctic lowland tundra landscapes. Lakes, ponds, streams, and seasonally flooded waters are widespread in these regions, yet their contribution to the movement, transformation, and exchange of carbon is still poorly understood.

I investigated how carbon varies across different freshwater ecosystem types and along hydrological co nnections. Specifically, I examined (1) greenhouse gas concentrations and emissions from inland waters, (2) how dissolved organic matter r elates to greenhouse gas concentrations, and (3) how carbon is transp orted through Arctic catchments. To address these questions, I conduc ted fieldwork in northeast Siberia and the Hudson Bay Lowlands in Can ada.

My research showed that lakes, ponds, streams, and floode d areas play an important role in how carbon moves through Arctic lan dscapes. Rather than simply transporting carbon from one place to ano ther, these freshwater ecosystems actively process, transform, and re lease carbon in different ways.

More information on the thesis

DESCRIPTION: Freshwater Carbon Across Arctic Lowland Tundra Ecosystems This research focuses on understanding the role of freshwater ecosys tems in carbon cycling across Arctic lowland tundra landscapes. Lakes , ponds, streams, and seasonally flooded waters are widespread in the se regions, yet their contribution to the movement, transformation, a nd exchange of carbon is still poorly understood.

I investigat ed how carbon varies across different freshwater ecosystem types and along hydrological connections. Specifically, I examined (1) greenhou se gas concentrations and emissions from inland waters, (2) how disso lved organic matter relates to greenhouse gas concentrations, and (3) how carbon is transported through Arctic catchments. To address thes e questions, I conducted fieldwork in northeast Siberia and the Hudso n Bay Lowlands in Canada.

My research showed that lakes, ponds , streams, and flooded areas play an important role in how carbon mov es through Arctic landscapes. Rather than simply transporting carbon from one place to another, these freshwater ecosystems actively proce ss, transform, and release carbon in different ways.More information on the thesis END:VEVENT END:VCALENDAR