Persistent Identifier
|
doi:10.18710/NLUNZZ |
Publication Date
|
2025-08-20 |
Title
| Replication Data for Raw data for the publication: Impact of drain spacing on subsurface drainage and greenhouse gas fluxes in a grassland on a sandy silt soil in western Norway. |
Author
| Rivedal, Synnøve (Norwegian Institute of Bioeconomy Research (NIBIO)) - ORCID: 0000-0003-2650-3506
Hansen, Sissel (Norwegian Centre for Organic Agriculture) - ORCID: 0000-0003-1987-3576 |
Point of Contact
|
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Rivedal, Synnøve (Norwegian Institute of Bioeconomy Research (NIBIO))
Hansen, Sissel (Norwegian Centre for Organic Agriculture) |
Description
| We established drainage systems with 6 and 12 m drain spacing in a previously undrained sandy silt under grass. Subsurface drainage was larger (1415 versus 520 mm) and ground water table (GWT) was lower (102 versus 79 cm) with 6 than with 12 m drain spacing. Water filled pore space values (WFPS) remained high throughout most of the year (> 80%). Most N2O emissions occurred shortly after fertilization in 12 m system whereas emissions from 6m occurred throughout the year. Cumulative N2O emissions in the 6 and 12 m system were 4.0 versus 2.5 kg N ha-2 yr-1. Grass yields, plant N-recovery and fertilizer N use efficiency was larger with 6 than 12 m drain spacing and there was no difference in yield-scaled N2O emissions (0.26 mg N2O-N kg DM-1). The mean N2O emission factor was significantly higher with 6 than with 12 m drain spacing (1.4 versus 0.8 % N2O-N of N applied). The 6 m system acted as a net sink for CH4, whereas the 12 m system was a net CH4 source. N2O emissions dominated the non-CO2 global warming potential (GWP). The 6 m system had a higher GWP than the 12 m system (1390 versus 1110 g CO2 eq. m-2 yr-1). We conclude that higher observed N2O emissions at 6 m were likely due to a combination of less complete denitrification and a higher release of N from SOM at this site. Our study does not confirm that increased drainage intensity intrinsically reduces N2O emissions. (2025-06-12) |
Subject
| Agricultural Sciences |
Keyword
| Subsurface drainage
Nitrogen leaching
Grass dry matter yield
Nitrous oxide emission
Methane emission
Water filled pore space
Ground water table
Soil organic matter
Soil mineral N content
Soil pH
Temperature (Precipitation)
Statistics |
Related Publication
| Hansen, S., Rivedal, S., Samson Ø., Deelstra, J., Børresen, T., Torp T., Dörsch, P. 2025. Impact of drain spacing on subsurface drainage and greenhouse gas fluxes in a grassland on a sandy silt soil in western Norway. |
Language
| English |
Producer
| Norwegian Institute of Bioeconomy Research (NIBIO) (NIBIO) https://www.nibio.no/en
Norwegian Centre for Organic Agriculture (NORSØK) https://www.norsok.no/en/
Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management (NMBU, MINA) |
Contributor
| Data Collector : Myromslien, Merete
Data Collector : Mundal, Helge
Data Collector : Furset, Konrad
Data Collector : Fredriksen, Trygve
Data Collector : Vartdal, Øyvind
Data Collector : Tveiti, Geir
Data Curator : Dörsch, Peter
Data Curator : Torp, Torfinn |
Funding Information
| The Research Council of Norway: 225274 |
Distributor
| Norwegian Institute of Bioeconomy Research (NIBIO) (NIBIO) https://dataverse.no/nibio |
Depositor
| Rivedal, Synnøve |
Deposit Date
| 2025-06-12 |
Time Period
| Start Date: 2014-06-01 ; End Date: 2016-12-31 |
Date of Collection
| Start Date: 2014-06-01 ; End Date: 2016-12-31 |
Data Type
| Experimental data; Environmental data; Statistical analyses |
Software
| Minitab |