Databank

Workreport 2007-8

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Name:

Dissolved Nitrogen Transformations and Microbial Community Structure in the Organic Layer of Forest Soils in Olkiluoto in 2006

Writer:

Potila, H., Sarjala, T., Aro, L.

Language:

English

Page count:

36

Summary:

Carbon (C) and nitrogen (N) cycles in the ecosystem are strongly coupled. Biomass, structure and activity of the bacterial and fungal community are the key factors influencing C and N cycles. Changes in the function of soil microbial community can be a signal of plant responses to environmental changes. Dissolved N compounds, microbial biomass, microbial activity, fungal community structure and functional diversity of microbial communities were measured in September 2006 from five monitoring plots on Olkiluoto to assess information about soil microbial community structure and activity. High within and between variation in the studied plots were detected. However, in this study the values and their variation in the level of N mineralisation, dissolved N compounds, fungal biomass and microbial community structure in the studied plots were within a normal range in comparison with other published data of similar forest types in Finland.

Keywords:

Community level physiological profile, Dissolved nitrogen, Dissolved organic carbon, Ergosterol, Fungal community structure, Microbial biomass, Mineralisation

File(s):

Dissolved Nitrogen Transformations and Microbial Community Structure in the Organic Layer of Forest Soils in Olkiluoto in 2006 (pdf) (610.1 KB)


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