Controlled drainage - Gärds Köpinge, Skåne county
- Local identifier
- R1-150
- Years operational
- 2000—
- Objective
- To investigate the long term effects of controlled drainage on nutrient leaching, crop yield and soil properties
- Description
- The experimental site is divided into four plots, including two plots with conventional subsurface drainage and two plots with controlled drainage. The plot size is 36 m x 40 m. Each plot is drained separately by four parallel lateral drains spaced 9 m apart. Plastic sheeting to a depth of 1.6 m to prevent lateral leakage and subsurface interactions isolates the plots. The outlets are connected to a weir allowing the groundwater to potentially rise to a pre-selected minimum height, after which outflow occurs. All plots are incorporated into an ordinary Swedish conventional farming system.
- Data Access Statement
- Other
- Data Access Notes
- An online application form for access long-term field experiments. https://www.slu.se/globalassets/ew/org/centrb/langliggande/gb-ltt-application-form-slu-20140820.docx
- Data license
- Other
- Data policy
- https://www.slu.se/globalassets/ew/org/centrb/langliggande/gb-guidelines_lte_slu_20140820.pdf
- Organization
- SLU Agricultural Long-Term Experimentsresearch organisation
- Person
- Associate professor Ingrid Wesströmprincipal investigatorSwedish University of Agricultural SciencesSoil and Environment
Site: Controlled drainage - Gärds Köpinge, Skåne county
- Type
- farmer field
- Local code
- R1-150
- Location
- Gärds KöpingeSkåneSweden
- Geographic location
- 55.934279, 14.181633
- Visits permitted?
- Yes
- Visiting arrangements
- Complete on-line application
- Management
- The LTE site is farmed conventionally by the farmer
- Soil type
- Aquic Hapludoll
- Soil description
- Topsoil (0–40 cm) is a weakly structured loamy sand with an organic matter content of 5%. The subsoil (40–100 cm) is a sand with low organic matter content. Below 1 m depth, there is a clay layer, which effectively restricts downward seepage.
- Climate description
- semi-humid climate
- Climate properties
Variable Time period Value (range) Units air temperature 1961 – 1990 7.6 degree Celsius precipitation 1961 – 1990 562 mm
Design period: (2000—)
- Design Type
- Other
- Description
- The experimental site is divided into four plots, including two plots with conventional subsurface drainage and two plots with controlled drainage. The plot size is 36 m x 40 m.
- Design description
- pair wise
- Number of plots
- 4
- Number of replicates
- 2
- Number of harvests per year
- 1
- Crops
Crop Years grown - Factor
- Factor name
- Factor levels
- water level in control structure conventional drainage
controlled drainage
- Measurements
Variable Material Units Frequency Scale Comment drainage discharge Not specified mm hourly water quality Not specified mg per liter flow proportional
Related publications
- Effects of controlled drainage on N and P losses and N dynamics in a loamy sand with spring crops doi:10.1016/j.agwat.2006.07.005 [In English]
- Evaluation of the DRAINMOD–N II model for predicting nitrogen losses in a loamy sand under cultivation in south-east Sweden