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Case study, Finland PEATWISE
Case study, FinlandPEATWISE
Ruukki, FinlandSite type: Grass and cereal crops on acid sulphate soils
Mitigation measure tested: WTL control and agronomy/crop management
PEATWISE Case Studies, Ruukki
Ruukki , FinlandContact person: Hannu Marttila ([email protected])
Description, land use history: Shallow peat, agricultural area. issue with acid sulphate soils
Climate Soil quality and agronomy Hydrology and drainage
Location
64⁰41.0019; 25⁰05.4343
Peat depth 0.2 – 0.7m Drainage started Block 6 (1900)Block 5 (1960) Block
1,2 (1980)
Mean annualprecipitation (mm y-1)
522 Underlying soil Sandy clay, Acid Sulphate soil
Drain depth past (cm) 80-120 (depending on soil surface)
Mean annual T (° C)
2,3 Crops Grass ley or cereal (barley or oats)
Drain depth present (cm)
100
Mean length ofgrowing season
5 months Rotation 3-4 years (ley) + 2 years (cereal)
Drain spacing (m) 12
Harvests 3
PEATWISE Case Studies, Ruukki
Site location and informationProfile description:
0-20/30cm root depth, (H7-H10, von post)
20-30/70cm organic soil, ”reddish”iron oxide layer most prominent in blocks 1-4, containing large intact plant materials, highly decomposed (H7-H10, von post)
30/70cm-x mineral soil, sandy clay, ‘rust spots’, very dry (Oct 2018)
PEATWISE Case Studies, Ruukki
Agriculture and land use (photos)Land use information:Grass ley or cereal3 years grass, 1 year cropMean length of growing season: 5 months
PEATWISE Case Studies, Ruukki
Experimental set-up
Objective: To study the field-scale water balance and observe effectiveness of drainage management on WTL control/manipulation to reduce GHG emissions whilst maintaining biomass production
Monitoring 2018-2022Continuous: Groundwater table levels, drainage flows, soil moistureFrequent: Stable water isotopes, hydraulic conductivity, GHG fluxesSeasonal: soil-water retention, biomass yield,
Description: 6 separately drained blocks Varying crops (grass ley, oats or barley) Adjacent to FMI weather station Continuous drainage data (left) Continuous GWT logger data (left)
PEATWISE Case Studies, Ruukki
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