Site Info (CH-OE2)


Last update: Sep 29, 2022 @ 12:33

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 (47.286417, 7.733750) (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: 2022-09-29_CH-OE2.Management.allyears.2003-2022 [zipped XLSX, 0.4MB, Oct 2003 – Aug 2022]

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
11 Winter Barley 24 Sep 2011 09 Jul 2012
12 Winter Rapeseed 04 Sep 2012 28 Jul 2013
13 Winter Wheat 19 Oct 2013 24 Jul 2014
14 Winter Barley 29 Sep 2014 04 Jul 2015
15 Cover crop 03 Aug 2015
16 Peas 09 May 2016 25 Jul 2016
17 Winter Rapeseed 30 Aug 2017 12 Jul 2018
18 Winter Wheat 11 Oct 2018 19 Jul 2019
22 Winter Wheat 12 Oct 2016 19 Jul 2017
23 Winter Barley 04 Oct 2019 01 Jul 2020
24 Grass-Clover 19 Aug 2020 19 Oct 2020
25 Grass 03 Apr 2020 19 Oct 2020
26 Grass-Clover 30 May 2021
27 Grass-Clover 20 Jul 2021
28 Grass-Clover 02 Sep 2021
29 Grass-Clover 18 Oct 2021
30 Grass-Clover 14 May 2022
31 Grass-Clover 25 Jun 2022
32 Grass-Clover 08 Aug 2022
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

 

Videos

Research Site Oensingen (CH-OE2) 2018

 

Webcam Time Lapse Videos Since 2005

@Swiss FluxNet HP | @YouTube

 

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