Comparison of chilling and heat requirements for leaf unfolding in deciduous woody species in temperate and subtropical China
文献类型：期刊论文
| 作者 | Xu, Yunjia1,2; Dai, Junhu1,2; Ge, Quansheng1,2; Wang, Huanjiong2; Tao, Zexing2 |
| 刊名 | INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
 |
| 出版日期 | 2020-09-02 |
| 页码 | 11 |
| 关键词 | Chilling and heat requirement Climate change Temperate zone Subtropical zone China |
| ISSN号 | 0020-7128 |
| DOI | 10.1007/s00484-020-02007-7 |
| 通讯作者 | Dai, Junhu(daijh@igsnrr.ac.cn) ; Tao, Zexing(taozx.12s@igsnrr.ac.cn) |
| 英文摘要 | Climate warming has advanced the spring phenology of many plant species by accelerating heat accumulation. However, delayed phenophases due to insufficient chilling have also been reported. Based on phenological observation data (1963-2010), we compared the effects of preseason chill and heat accumulation on leaf unfolding dates of four deciduous woody species (Lagerstroemia indica,Robinia pseudoacacia,Sophora japonica, andUlmus pumila) in temperate and subtropical regions of China. Daily chill and heat accumulation were calculated by two chilling models (the Positive Utah Model and the Dynamic Model) and the Growing Degree Hour (GDH) Model. We determined the temporal trends in chill and heat accumulations for leaf unfolding of the four species. The results showed that there were shorter chilling periods in the subtropics than in temperate sites because the chilling period typically started later and ended earlier. There was no significant difference in the length of the forcing period in the different regions. The chilling requirements for leaf unfolding were higher in temperate regions (1344.9-1798.9 chilling units (CU) or 64.7-79.4 chilling portions (CP)) than in the subtropics (1145.9-1828.1 CU or 47.9-75.2 CP). Plants in the subtropics needed higher forcing temperatures (4135.8-10084.8 GDH) than those in temperate regions (3292.0-8383.6 GDH). The earlier-leafing species (e.g.,U. pumila) had a lower heat requirement for leaf unfolding than the later-leafing species (e.g.,L. indica). A significant increase in heat accumulation was found at all sites except Guiyang, while chill accumulation only increased in Beijing. |
| WOS关键词 | CLIMATE-CHANGE ; PHENOLOGICAL RESPONSE ; DORMANCY BREAKING ; CONTINENTAL-SCALE ; JAPANESE APRICOT ; PISTACHIO TREES ; MODELS ; ACCUMULATION ; ADAPTATION ; PREDICTION |
| 资助项目 | National Key R&D Program of China[2018YFA0606102] ; Natural Science Foundation of China[41771056] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA19020303] |
| WOS研究方向 | Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000565499200002 |
| 出版者 | SPRINGER |
| 资助机构 | National Key R&D Program of China ; Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/157954]  |
| 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 | Dai, Junhu; Tao, Zexing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Yunjia,Dai, Junhu,Ge, Quansheng,et al. Comparison of chilling and heat requirements for leaf unfolding in deciduous woody species in temperate and subtropical China[J]. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,2020:11. |
| APA | Xu, Yunjia,Dai, Junhu,Ge, Quansheng,Wang, Huanjiong,&Tao, Zexing.(2020).Comparison of chilling and heat requirements for leaf unfolding in deciduous woody species in temperate and subtropical China.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,11. |
| MLA | Xu, Yunjia,et al."Comparison of chilling and heat requirements for leaf unfolding in deciduous woody species in temperate and subtropical China".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY (2020):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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