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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
Peer-reviewed Journal Articles, etc >
Differences in C, N, delta C-13, and delta N-15 among plant functional types after a wildfire in a black spruce forest, interior Alaska
| Title: | Differences in C, N, delta C-13, and delta N-15 among plant functional types after a wildfire in a black spruce forest, interior Alaska |
| Authors: | Tsuyuzaki, Shiro Browse this author →KAKEN DB | | Kwon, TaeOh Browse this author | | Takeuchi, Fumiko Browse this author | | Otaki, Michiru Browse this author | | Sawada, Yuki Browse this author |
| Keywords: | burned and unburned ground surface | | carbon (C) | | nitrogen (N) | | Alaskan taiga | | plant functional type | | stable isotope |
| Issue Date: | Mar-2022 |
| Publisher: | Canadian science publishing |
| Journal Title: | Canadian Journal of Forest Research |
| Volume: | 52 |
| Issue: | 3 |
| Start Page: | 357 |
| End Page: | 364 |
| Publisher DOI: | 10.1139/cjfr-2021-0134 |
| Abstract: | We measured differences in %C, %N, delta(13C,) and delta N-15 of plant functional types (PFTs) between burned and unburned ground surfaces soon after a wildfire on a north-facing slope in interior Alaska. The C and N were measured for 16 species and Sphagnum litter. delta C-13 differed among the PFTs and was low for trees and shrubs, suggesting that woody stems slowed C dynamics or showed low water use efficiency. delta N-15 concentrations suggested that the herbaceous plants depended less on the mycorrhizal associations that became weak on the burned surfaces. The shrub leaves showed the lowest delta N-15 of PFTs and showed higher delta N-15 on the burned surface, showing that N transfer from the soils to the leaves in the shrubs was slowed by the wildfire. Mosses showed the highest C/N ratio. Sphagnum litter decomposed faster on the burned surface, and %N and delta N-15 in the litter increased from the second to third year on both burned and unburned surfaces, while %C changed little. In conclusion, the responses to the wildfire differed among the PFTs as characterized by their C and N dynamics. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/85626 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 露崎 史朗
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