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Does ontogeny matter for the spring temperature requirement for bud burst of two coniferous species in cool temperate forests?
| Title: | Does ontogeny matter for the spring temperature requirement for bud burst of two coniferous species in cool temperate forests? |
| Authors: | Kobayashi, Makoto Browse this author →KAKEN DB |
| Keywords: | change | | ontogeny | | phylogeny | | winter climate change | | gymnosperm | | snow |
| Issue Date: | 12-Dec-2022 |
| Publisher: | Canadian science publishing |
| Journal Title: | Canadian journal of forest research |
| Volume: | 53 |
| Issue: | 3 |
| Start Page: | 203 |
| End Page: | 209 |
| Publisher DOI: | 10.1139/cjfr-2022-0223 |
| Abstract: | Spring leaf phenology is an important event for trees to determine carbon fixation during the growing season. However, less is understood about the intraspecific variation in spring leaf phenology and its relationship with the spring temperature requirements of conifers, which is problematic for accurately predicting the influence of spring climate warming on conifers. I monitored bud burst timing and the degree days required for bud burst for seedlings and large individuals of Abies sachalinensis (fir) and Larix kaempferi (larch) over two seasons in northern Japan. Contrary to my expectation, the degree days required for the bud burst of small individuals were similar to or larger than those of the large individuals for fir and larch. Consequently, the bud burst timing of small individuals was similar to or later than that of large individuals for fir and larch. Even when conifer species are in their early stage, the spring temperature requirement for bud burst is not necessarily less than that for large individuals, which is not the case for many broad-leaved species. These results indicate that for these two coniferous species, ontogenetic differences in temperature requirements are not necessary to be considered for the response of communities to spring climate change. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/88532 |
| Appears in Collections: | 北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 小林 真
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