51nstitute for Basin Ecosystem Studies
Abstract: Microbial biomass in arctic soil was examined in relation to a primary succession on arctic deglaciated moraines in ~ ~- ~ l e s u n d, Svalbard (79¡N 2'E). Soil samples at four study sites representing different successional stages were collected at every 1 cm depth from the soil su...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.488.5028 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1999-Bekku.pdf |
| Summary: | Abstract: Microbial biomass in arctic soil was examined in relation to a primary succession on arctic deglaciated moraines in ~ ~- ~ l e s u n d, Svalbard (79¡N 2'E). Soil samples at four study sites representing different successional stages were collected at every 1 cm depth from the soil surface to 3 cm depth in early August 1995. Microbial biomass was measured with a substrate-induced respira-tion procedure. The microbial biomass was highest at the soil surface (0-1 cm depth) in all successional stages, and decreased to a negligible amount at 3 cm depth. Mean microbial biomass in 0-2 cm layer increased from 0.06 mgC g lso i l d.w. in the youngest site to 1.03 mgC g4soil d.w. in the oldest site, which is comparable to ecosystems in warmer regions. Throughout all successional stages, there was positive high correlation between soil carbon or nitrogen content and microbial biomass. key words: arctic soil, microbial biomass, soil carbon and nitrogen content, primary succession |
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