20.09.-24.09.2015 / Göttingen

Excursion 1: Lowpeat-land in northeastern Lower-Saxony

Organizers:  Dr Christian Ahl, Dr Martin Jansen

One day excursion:    Costs: ~ 50 €

September 20, 2015.   Start: 7:00  End: 19:00 

The excursion will guide us in the so-called „Großes Bruch (Large Fen)“, roughly 120 km northeast of Goettingen. The valley spreads from west to east with a length of 40 km and a width of appr. 4 km. This trough originated from the glacial times of the Saale Ice Age (or Riss Ice Age). The Drenthe stadial of the Saalian Ice Age deglaciated and this valley conduced to the meltwater as drainage system. During the Würm / Weichselian Ice Age in the valley loess was deposited, on top of the loess, the low-level moor formed during the holocene. 

First attempts of drainage have been made in late medieval times by dutch monks, latest in the early sixties of the last century.

The excursion will show us arable used low peat land with crumble peat, shelter belts and wind-breaks in the western part of the peat area, as well as soil profiles after deep ploughing (1986); in contrary meadows, grassland and short rotation forestry (since 6 years), in the eastern part. The cultivation was completely different as a result of the „Iron Curtain“ dividing the low peat land from 1945 up to 1989.

In the evening dinner will be served at the Kloster Wöltingerode, with a visit of the distillery and tasting of various brands.

 

 

Excursion 2: Black soils around Halle /Saale

Organizer: Dr Klaus Kaiser, Prof Dr Reinhold JahnKatja WiednerProf Dr Bruno Glaser , Dr Uwe Franko, Dr Galina Machulla

One day Excursion.   Costs: ~ 50.- €

20 September 2015,   Beginn: 8.00   End: 20.00

The excursion will lead us into a region with naturally occurring and man-made black soils. Soils range from natural Chernozem-type soils, including one buried profile, which serves as a record for the conditions Chernozems have been formed under. Also, the Halle region is affected by lignite mining, leaving behind devastated areas, which have been re-cultivated recently, and deposits of residues of lignite burning. Several unusual soils have been formed into these substrates. The result is a fascinating pattern of soils of different age and origin but sharing one common feature - dark coloured organic matter.

The presentation of soils will be completed by a visit at the research site at Bad Lauchstädt, which an introduction to recently equipped experimental plots and discussions on monitoring and modeling of soil carbon changes.