Site Info (CH-OE2)
Site 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
Site name: Oensingen, Canton of Solothurn, Switzerland
Land cover (IGBP land classification): Cropland
Land use: Typical intensive crop rotation under the Swiss Integrated Pest Management regime (IP Suisse).
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.
FLUXNET ID: CH-Oe2 (link)
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 |
|---|---|---|---|
| 1 | Winter Wheat | 16 Oct 2003 | 04 Aug 2004 |
| 2 | Winter Barley | 29 Sep 2004 | 14 Jul 2005 |
| 3 | Cover crop | 09 Aug 2005 | |
| 4 | Potato | 05 May 2006 | |
| 5 | Winter Wheat | 19 Oct 2006 | 15 Jul 2007 |
| 6 | Winter Rapeseed | 28 Aug 2007 | 16 Jul 2008 |
| 7 | Winter Wheat | 07 Oct 2008 | 21 Jul 2009 |
| 8 | Cover crop | 12 Aug 2009 | |
| 9 | Peas | 09 May 2010 | 19 Jul 2010 |
| 10 | Winter Wheat | 15 Oct 2010 | 02 Aug 2011 |
| 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
Site Video
Webcam
Time Lapse Videos Since 2005
Most Recent Image
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