Cristin-resultat-ID: 1856355
Sist endret: 4. desember 2020, 15:11
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2020

Huge variation of environmental performance on dairy farms in Central Norway

Bidragsytere:
  • Matthias Koesling og
  • Håvard Steinshamn

Bok

12th International Conference on Life Cycle Assessment of Food (LCAFood2020)
ISBN:
  • 978-82-17-00598-8

Utgiver

German Institute of Food Technologies (DIL), Quakenbrück, Germany

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2020
Sider: 75 - 80
ISBN:
  • 978-82-17-00598-8

Klassifisering

Fagfelt (NPI)

Fagfelt: Tverrfaglig naturvitenskap og medisin
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Huge variation of environmental performance on dairy farms in Central Norway

Sammendrag

The aim of this work was to calculate farm specific LCAs for milk-production on 200 dairy farms in Central Norway, where 185 farmed conventional and 15 according to organic standards. We assume that there are variations in environmental emission drivers between farms and therefore also variation in indicators. We think that information can be utilized to find management improvements on individual farms. Farm specific data on inputs and production for the calendar years 2014 to 2016 were used. The LCAs were calculated for purchased products and on farm-emissions, including atmospheric deposition, biological nitrogen fixation, use of fertilizer and manure. The enteric methane emission from digestion was calculated for different animal groups. The functional unit was one kg energy- corrected milk (ECM) delivered at farm-gate. For the 200 dairy farms there were huge variations of farm characteristics, environmental per- formance and economic outcome. On average, the organic farms produced milk with a lower carbon footprint (1.2 kg CO2 eq./kg ECM) than the conventional ones (1.4 kg CO2 eq./kg ECM). The organic farms had also a lower energy intensity (3.1 MJ/kg ECM) and nitrogen intensity (5.0 kg N/kg N) than their conventional colleagues (4.1 MJ/kg ECM and 6.9 kg N/kg N respectively). The contribution margin was better on the organic farms with 6.6 NOK/kg ECM compared to the conventional with 5.9 NOK/kg ECM. The average levels of the environmental indicators were comparable but slightly higher than findings in other international studies. The current study proved that the FARMnor model allows to calculate LCAs for large number of individual farms. The results show that the environmental performance and economic outcome vary between farms. We recommend that farm specific LCA-results are used to unveil what needs to be changed for improving a farm’s environmental performance.

Bidragsytere

Aktiv cristin-person

Matthias Koesling

  • Tilknyttet:
    Forfatter
    ved Divisjon for matproduksjon og samfunn ved Norsk institutt for bioøkonomi

Håvard Steinshamn

  • Tilknyttet:
    Forfatter
    ved Divisjon for matproduksjon og samfunn ved Norsk institutt for bioøkonomi
1 - 2 av 2

Resultatet er en del av Resultatet er en del av

12th International Conference on Life Cycle Assessment of Food (LCAFood2020).

Eberle, Ulrike; Smetana, Sergiy; Bos, Ulrike. 2020, Populærvitenskapelig bok
1 - 1 av 1