Field Experiments & Instrumentation / Workshops                    --- Making Things Happen ---     



Reforestation area
(plots with differing tree species diversity)

Latitude 50.89
Longitude 11.08
Elevation 403 m a.s.l.


  • Since 2004 until now
  • Competition experiment
  • Tree growth
  • Wood increment
  • Meteorology


Collabotation University of Freiburg - Prof. Dr. Michael Scherer-Lorenzen

Description & History

The site Bechstedt is located within the Thuringian Basin. It represents the smallest of the three BIOTREE sites (9 ha). The site was used as pasture before.

The climatic conditions are more sub-continental than those of Mehrstedt and Kaltenborn. The bedrock consists of limestone, which belongs to the same geological formation as at the site Mehrstedt. Stagnic Vertisols (WRB) have been developed since pre-Pleistocene times. They lead to periodic water logging mainly during winter and spring.

At the site functional diversity is varied at a constant level of species richness (Scherer-Lorenzen, M. et al., 2007).

Variables & Instruments


  • Air temperature and humidity - temperature-humidity-sensor KPK1/5-ME, Mela
  • Precipitation - heated tipping bucket rain gauge, Thies
  • Solar radiation - pyranometer (albedometer) CM14, Kipp & Zonen

Soil conditions

  • Soil temperature - soil temperature sensors PT100, home-made
  • Soil moisture - soil moisture probes ML-2x, Delta-T

Data acquisition

  • Meteorological data - datalogger CR23X, Campbell Scientific


Scherer-Lorenzen, M., Schulze, E. D., Don, A., Schumacher, J., Weller, E. (2007). Exploring the functional significance of forest diversity: A new long-term experiment with temperate tree species (BIOTREE). Perspectives in Plant Ecology, Evolution and Systematics, 9(2), 53-70. doi:10.1016/j.ppees.2007.08.002.