Do same-aged but different height Norway spruce (Picea abies) clones affect soil microbial community? |
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Authors: | Tiina Korkama,Hannu Fritze,Oili Kiikkilä ,Taina Pennanen |
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Affiliation: | Finnish Forest Research Institute (Metla), Vantaa Research Unit, P.O. Box 18, FI-01301 Vantaa, Finland |
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Abstract: | The influence of individual trees in monocrop forests on soil microbial communities is poorly understood. We measured basal respiration, substrate-induced respiration and phospholipid fatty acids (PLFA), bacterial growth rate with the 3H-thymidine incorporation technique and fungal growth rate as 14C-acetate incorporation into ergosterol to investigate whether slow- and fast-growing 12-year-old Norway spruce (Picea abies) clones have affected differently on their associated soil microbial communities. Understorey vegetation, soil chemical properties and elemental concentrations of needles were also determined. The slow- and fast-growing spruce clones differed in PLFA profiles, understorey vegetation and elemental concentrations in needles suggesting that spruce clones have directly or indirectly affected soil microbes. |
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Keywords: | Basal respiration 14C-acetate incorporation into ergosterol Growth 3H-thymidine incorporation Phospholipid fatty acids (PLFA) Substrate-induced respiration (SIR) |
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