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| Content Provider | Springer Nature Link |
|---|---|
| Author | Arld, S. S. Fernandez, I. J. Rustad, L. E. Zibilske, L. M. |
| Copyright Year | 1999 |
| Abstract | Effects of increased soil temperature on soil microbial biomass and dehydrogenase activity were examined on organic (O) horizon material in a low-elevation spruce-fir ecosystem. Soil temperature was maintained at 5 °C above ambient during the growing season in the experimental plots, and soil temperature, moisture, microbial biomass, and dehydrogenase activity were measured during the experiment. An incubation study was also conducted under three temperature regimes, 5, 15, and 25 °C, and under four moisture regimes of 20, 120, 220, and 320% to further evaluate these environmental factors on dehydrogenase activity and microbial biomass. Soil moisture content and microbial biomass controls were significantly lower (30% and 2 μg g–1 soil, respectively) in the heated plots during the treatment period, suggesting that moisture content was important in controlling microbial biomass. In the incubation study, temperature appeared more important than moisture in controlling microbial biomass and dehydrogenase activity. Increasing temperature between 5 °C and 25 °C resulted in significant decreases in microbial biomass and dehydrogenase activity. |
| Starting Page | 239 |
| Ending Page | 244 |
| Page Count | 6 |
| File Format | |
| ISSN | 01782762 |
| Journal | Biology and Fertility of Soils |
| Volume Number | 30 |
| Issue Number | 3 |
| e-ISSN | 14320789 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 1999-12-10 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Agronomy and Crop Science Soil Science Microbiology |
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