Matrix-bound phosphine in Ny-(A)lesund Area of Arctic

摘要

Phosphine,a ubiquitous trace gas in the atmosphere,acts as a carrier of gasous phosphorus in thebiogeochemical cycle.The research of phosphine will show new light on the mechanisms of how the phos-phorus supplement influence the biogeochemical cycle and global warming.In this paper,we detect thephosphine in Arctic Pole area for the first time.The result shows that matrix-bound phosphine(MBP)ex-ists in all the samplings.Phosphine distributions varied with different environmental origins.Averagephosphine concentrations in tundra soil,lake sediments,sea sediments,seabird-droppings and deerguanos were 14.17ng/kg dry,35.44 kg dry,67.20 kg dry,32.9 ng/kg dry,and 25.52 ng/kg dry re-spectively.Correlation analysis shows that there is an obviously positive correlation between Porg andMBP.It could be concluded that anaerobic decomposition of Porg and the mechano-chernistry action of therock probably are the possible reasons explaining the mechanism of MBP production in Arctic Pole area.