Conference paper - Peer-reviewed, 2007
Effect of drainage depth on the emission of CO2 from cultivated organic soilsBerglund, Ö.; Berglund, K.; Persson, L.
AbstractThe objective was to study if the farmer by choosing drainage depth can mitigate the emission Of CO2. A lysimeter study was carried out with organic soils from two locations, Orke, a very well decomposed fen peat with low pH and high organic matter content and Majnegarden, a well decomposed fen peat with high pH and low organic matter content. A drilling method with minimal soil disturbance was used to collect 12 undisturbed soil monoliths per site. These were drained to 40 or 80 cm groundwater level and CO2 emission was measured weekly Crop growth was better at Majnegarden and CO2 emission lower compared to Orke, maybe due to differences in both quantity and quality of organic matter. Crop growth and CO2 emission were higher at high water tables (40 cm) than at low (80 cm) at both sites. Differences in CO2 emissions could be an effect of plant growth.
Published inBook title: Wetlands: Monitoring, Modeling and Management
Publisher: Taylor & Francis
ConferenceInternational Conference Wetlands - Monitoring, Modelling and Management
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