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Only a few lakes remain to be investigated, with the most recent sediment sampling taking place at Lake Erken. Sediments along the four transects with GHG chambers were successfully collected in mid-September. At each GHG transect two sediment cores were collected, representing a shallow and deep depth within the transect. Most sediment was sampled with a gravity corer, however at shallow depths within the reed belts innovative sampling techniques were required.

Field work in the Tarfala Valley. Click on the photos for larger versions and more info. Photos by Karuna Sah.

In May, Röbäcksdalen and Lönnstorp station received the good news that they can be a part of the Lifeplan project, which is a global project to monitor biodiversity. Many of the other SITES stations are already participating. However, intensive management and the urban location of the two agricultural stations made it difficult to fit into the original model of Lifeplan. However, SITES and Lifeplan have now agreed on a modified participation for the two agricultural stations.

SITES was present at the 12th Symposium for European Freshwater Sciences (SEFS) virtual conference held this week. During the session, Insights from long-term datasets, Jorrit Mesman, a PhD student in the SITES network, presented research based on data collected at Lake Erken.

The summer 2021 is facing a heat wave across the northern hemisphere with temperatures rising to more than 10°C above the long-term average in some regions of Scandinavia.

Text: Gunnar Jansson.