Site Info (CH-OE2)


 

General

Site name: Oensingen, Canton of Solothurn, Switzerland
Land use: Typical intensive crop rotation under the Swiss Integrated Pest Management regime (IP Suisse).
Land cover (IGBP land classification): Cropland
FLUXNET ID: CH-Oe2 (link)

 

Description

This site was part of the CarboEuropeIP project (EU FP6) and the GHG-Europe project (EU FP7). Eddy covariance flux measurements started in December 2003. The soil type is an eutri-stagnic cambisol. The site is located at 452 m and is managed as a typical intensive crop rotation under the Swiss Integrated Pest Management regime (IP Suisse). The tower coordinates are: 47°17’11.1″ N and 7°44’01.5″ E; WGS84 47.286417, 7.73375. During the CarboEuropeIP project, colleagues from Agroscope operated the Oensingen Grassland site nearby.

 

Location

Altitude: 452 m a.s.l.
Coordinates: 47°17’11.1″ N / 7°44’01.5″ E (Google Maps)
Location description: Oensingen is located at the southern edge of the bottom of the Jura Mountains.

 

Soil

Geology: Alpine lime (50%), jurassic lime (15%), silicon dioxide (15%), conglomerates and crystalline rock (15%).
Soil type: Eutri-stagnic cambisol (1)
Soil texture: Sandy clay (1)
Bulk density: 1.16 g m-3
Total organic C: 0.00307 kg C per kg soil
Total organic N: 0.000269 kg N per kg soil

Depth intervall (cm) Particle size distribution (%)     Texture Organic matter
OM (%)
pH
  Clay (< 2 μm) Silt (2-60 μm) Sand (> 60 μm)      
0-25 43.0 47.5 9.5 Silty clay 2.8 5.5
25-40 45.2 46.3 8.5 Silty clay 1.3 5.9
40-60 47.6 45.9 6.5 Silty clay 0.6 5.9
60-70 52.4 41.6 6.0 Silty clay 0.0 5.9
Average 47.1 45.3 7.6      

Reference: Alaoui and Goetz (2008)

 

Vegetation

LAI

date planting date harvest crop type in rotation max. LAI (± standard deviation)
2003-10-16 2004-08-03 winter wheat 4.07 (±0.49)
2004-09-21 2005-07-14 winter barley 4.30 (±0.44)
2006-05-03 2006-10-17 potato 3.79 (±0.99)
2006-10-18 2007-07-14 winter wheat 4.19 (±0.85)
2007-08-27 2008-07-16 rape seeds 3.45 (±0.51)

Carbon and Nitrogen Content

Date crop variarity organ C% (g C per 100 g dry matter) N% (g N per 100 g dry matter) C/N ratio
2004-08-03 winter wheat grain 42.2 2.68 15.75
    straw 44.1 0.23 191.74
2005-07-14 winter barley grain 42.7 2.02 21.14
    straw 45.8 0.58 78.97

 

Management

Detailed Management Info

Download: 2019-09-28_CH-OE2.Management.allyears (XLSX) [Oct 2003 – Jul 2019]

Crop Rotation

Crop rotation since flux measurements started. The site is managed as a typical intensive crop rotation under the Swiss Integrated Pest Management regime (IP Suisse).

wdt_ID Crop Sowing Harvest
Crop Sowing Harvest

Cover Crops

  • 12 Aug 2009: summer oat, phacelia, Alexandrine clover
  • 3 Aug 2015: phacelia

Before Flux Measurements

  • 1994 summer wheat
  • 1994/1995 rapeseed
  • 1995/1996 winter barley
  • 1997 grassland
  • 1998 grassland
  • 1999 grassland
  • 1999/2000 winter wheat
  • 2001 potato
  • 2002 cereal (not specified)
  • 2002/2003 rape seed

 

Video

 

Webcam

 

References

  • Alaoui and Goetz (2008) Dye tracer and infiltration experiments to investigate macropore flow
  • Ammann et al. (2007) The carbon budget of newly established temperate grassland depends on management intensity
  • Ceschia et al. (2010) Management effects on net ecosystem carbon and GHG budgets at European crop sites
  • (1) Dietiker et al. (2010) Testing the ability of the DNDC model to predict CO2 and water vapour fluxes of a Swiss cropland site
  • Emmel et al. (2018) Integrated management of a Swiss cropland is not sufficient to preserve its soil carbon pool in the long term
  • Fritsche et al. (2008) Summertime elemental mercury exchange of temperate grasslands on an ecosystem-scale
  • Hastings et al. (2010) Uncertainty propagation in soil greenhouse gas emission models: An experiment using the DNDC model and at the Oensingen cropland site
  • Hug et al. (2015) (ZIP) NABObio12_13 Ergebnisse der Pilotphase 2012 und 2013 (German)
  • Kutsch et al. (2010) The net biome production of full crop rotations in Europe
  • Sus et al. (2010) A linked carbon cycle and crop developmental model: Description and evaluation against measurements of carbon fluxes and carbon stocks at several European agricultural sites

 

More Info