Low temperature and short daylength interact to affect the leaf senescence of two temperate tree species
文献类型：期刊论文
| 作者 | Wang, Huanjiong1; Gao, Chengxi1,2; Ge, Quansheng1; Makela, Annikki |
| 刊名 | TREE PHYSIOLOGY
 |
| 出版日期 | 2022-06-16 |
| 页码 | 14 |
| ISSN号 | 0829-318X |
| 关键词 | autumn phenology controlled experiment leaf senescence phenological model photoperiod temperature |
| DOI | 10.1093/treephys/tpac068 |
| 通讯作者 | Wang, Huanjiong(wanghj@igsnrr.ac.cn) |
| 英文摘要 | Temperature and photoperiod are two major environmental cues shaping the leaf senescence of temperate tree species. However, how the control of leaf senescence is split between photoperiod and temperature is unknown for many ecologically important species. Here, we conducted a growth chamber experiment to test the effects of temperature (6, 9, 18 and 21 degrees C) and photoperiod (8 and 16 h daylength) on leaf senescence of two temperate tree species (Quercus mongolica Fisch. and Larix principis-rupprechtii Mayr.) distributed in montane forest of China. The results showed that low temperature (LT) alone could induce leaf senescence of both species under long daylength (LD) conditions, but the leaf senescence of L. principis-rupprechtii was more sensitive to the decrease in temperature than that of Q. mongolica under the LD condition. Short daylength (SD) alone could only induce the leaf senescence of L. principis-rupprechtii, suggesting that the photoperiod sensitivity varies between species. SD could accelerate the LT-induced senescence, but the effect of SD reduced with the decrease in temperature. Based on these findings, we developed a new autumn phenology model by incorporating interspecific differences in the photoperiod sensitivity of leaf senescence. Compared with the three existing process-based autumn phenology models, the new model was more robust in simulating the experimental data. When employing these models to available long-term phenological data, our new model also performed best in reproducing the observed leaf senescence date of two closely related species (Quercus robur L. and Larix decidua Mill.). These results enhance our understanding of how LT and SD control leaf senescence. The prediction of the climate change impacts on forest carbon uptake could be improved by incorporating this new autumn phenological model into the terrestrial biosphere models. |
| WOS关键词 | CONTROLS GROWTH CESSATION ; CLIMATE-CHANGE ; PHOTOPERIODIC CONTROL ; AUTUMN SENESCENCE ; CARBON UPTAKE ; BUD DORMANCY ; PHENOLOGY ; FOREST ; INDUCTION ; BUDBURST |
| 资助项目 | National Key R&D Program of China[2018YFA0606103] ; National Natural Science Foundation of China[41871032] ; Youth Innovation Promotion Association, CAS[2018070] ; Program for`Kezhen' Excellent Talent sin IGSNRR, CAS[2018RC101] |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000834369900001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; Program for`Kezhen' Excellent Talent sin IGSNRR, CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/181829]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Wang, Huanjiong |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Huanjiong,Gao, Chengxi,Ge, Quansheng,et al. Low temperature and short daylength interact to affect the leaf senescence of two temperate tree species[J]. TREE PHYSIOLOGY,2022:14. |
| APA | Wang, Huanjiong,Gao, Chengxi,Ge, Quansheng,&Makela, Annikki.(2022).Low temperature and short daylength interact to affect the leaf senescence of two temperate tree species.TREE PHYSIOLOGY,14. |
| MLA | Wang, Huanjiong,et al."Low temperature and short daylength interact to affect the leaf senescence of two temperate tree species".TREE PHYSIOLOGY (2022):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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