Seasonal CO2 emission under different cropping systems on Histosols in southern Sweden

Sammanfattning

Drained and cultivated organic soils contribute a substantial proportion of estimated anthropogenic greenhouse gas emissions in Sweden. According to rough estimates, different cropping systems give rise to different subsidence rates and, since some of this subsidence originates from oxidation of organic material, soil respiration may also vary with different crops. This field study investigated the possibility of mitigating carbon dioxide (CO2) emissions from cultivated organic soils by using a specific cropping system. The CO2 emission rates from soils under different crops in similar environmental conditions were measured at 11 field sites in southern Sweden representing different types of organic soils. The variation in emissions between the crops tested was low compared with total CO2 emissions from the soil and differences between crops were not consistent. This shows that growing a particular crop cannot be recommended as a mitigation option for limiting CO2 emissions from cultivated organic soils. (c) 2016 Elsevier B.V. All rights reserved.

Nyckelord

Agriculture; Carbon dioxide; Cropping system; Entisols; Greenhouse gas; Histosols; Inceptisols; Peat; Peaty marl

Publicerad i

Geoderma Regional
2016, volym: 7, nummer: 3, sidor: 338-345

SLU författare

• Norberg, Lisbet

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

• Berglund, Örjan

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

• Berglund, Kerstin

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Markvetenskap
Jordbruksvetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1016/j.geodrs.2016.06.005

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/77680