Published December 31, 2025 | Version v1
Dataset Open

CO2, CH4 and N2O fluxes in a Nordic agricultural field growing barley intercropped with undersown species

Creators

  • 1. Finnish Meteorological Institute

Description

This package contains data from an experimental site in southern Finland, where barley was cultivated either as a monoculture or intercropped with 1 to 8 undersown species. After the barley harvest, the undersown species remained in the field and served as a cover crop until tillage in the following spring. The field, located in Helsinki (60°13'29.4"N, 25°01'12.7"E), is classified as coarse mineral soil. Manual chamber flux measurements included NEE, TER, N₂O, and CH₄, and were conducted over a two-year period from May 2020 to May 2022.

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Additional details

Identifiers

B2SHARE Legacy Record ID
bff0a61a7ddc4e59a3958fcc1060a313
URL
https://etsin.fairdata.fi/dataset/2c40504d-1d8c-4129-82c5-6216286a4ee3

Related works

Is cited by
Other: https://ssrn.com/abstract=5273040 (URL)

Funding

Maj and Tor Nessling Foundation
Strategic Research Council at the Research Council of Finland (grant numbers 352431, 352436, 352432, 335204)
Research Council of Finland (grant number 337552, 337549)

Instruments

CO2, H2O, N2O and CH4 analyser (DX4015, Gasmet Technologies Oy, Vantaa, Finland)
undefined (Other)

Details

Expansion error: Instrument is not eligible for expansion
CO2 and H2O analyser (Li-840A, LI-COR, Inc., Nebraska, USA)
undefined (Other)

Details

Expansion error: Instrument is not eligible for expansion

FMI metadata

Lineage
Data was filtered as described in the manuscript (link provided in this repository)
Parameter
Parameter name : Net ecosystem exchange fluxes
Parameter unit : mg CO2 m-2 s-1
Parameter description : NEE
Parameter name : Nitrous oxide fluxes
Parameter unit : ug N2O m-2 s-1
Parameter description : N2O
Parameter name : Methane fluxes
Parameter unit : ug CH4 m-2 s-1
Parameter description : CH4
Parameter name : Total ecosystem respiration
Parameter unit : mg CO2 m-2 s-1
Parameter description : TER
Parameter name : GAI
Parameter unit : m2 m-2
Parameter description : Green Area Index
Parameter name : AGB
Parameter unit : g m-2
Parameter description : Above ground biomass
Topic category
climatologyMeteorologyAtmosphere

Temporal Coverage

Ranges:

Start date: 2020-04-30
End date: 2022-05-30

Locations

Viikki Point:
(Lat: 60.224833, Lon: 25.020195 )