Sammanfattning

To be able to quantify the net CO2 emission from cultivated soils there is a need to distinguish between SOMderived CO2 respiration and plant-derived respiration. The methods usually used in measuring the CO2 emission from soil measure the total CO2 flux. In this investigation we used the root exclusion method to separate the plant-derived respiration from total CO2 emission. The plant-derived contribution was estimated to be between 28 and 68% of total CO2 emission. Due to the priming effect the root exclusion method is less reliable late in the season

Nyckelord

CO2 emission; plant-derived respiration; lysimeter; organic soil; peat

Publicerad i

ISBN: 0951489046
Utgivare: International Peat Society

Konferens

13th International Peat Congress "After Wise Use - The Future of Peatlands"

SLU författare

• Berglund, Örjan

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

• Berglund, Kerstin

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Jordbruksvetenskap
Miljö- och naturvårdsvetenskap
Förnyelsebar bioenergi


Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/21307