New insights on plant phenological response to temperature revealed from long-term widespread observations in China
文献类型：期刊论文
| 作者 | Zhang, Haicheng1,2; Liu, Shuguang3; Regnier, Pierre2; Yuan, Wenping1,4 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 24期号:5页码:2066-2078 |
| 关键词 | growing degree day leaf onset date phenology model plant phenology terrestrial biosphere model winter chilling |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.14002 |
| 通讯作者 | Yuan, Wenping(yuanwpcn@126.com) |
| 英文摘要 | Constraints of temperature on spring plant phenology are closely related to plant growth, vegetation dynamics, and ecosystem carbon cycle. However, the effects of temperature on leaf onset, especially for winter chilling, are still not well understood. Using long-term, widespread insitu phenology observations collected over China for multiple plant species, this study analyzes the quantitative response of leaf onset to temperature, and compares empirical findings with existing theories and modeling approaches, as implemented in 18 phenology algorithms. Results show that the growing degree days (GDD) required for leaf onset vary distinctly among plant species and geographical locations as well as at organizational levels (species and community), pointing to diverse adaptation strategies. Chilling durations (CHD) needed for releasing bud dormancy decline monotonously from cold to warm areas with very limited interspecies variations. Results also reveal that winter chilling is a crucial component of phenology models, and its effect is better captured with an index that accounts for the inhomogeneous effectiveness of low temperature to chilling rate than with the conventional CHD index. The impact of spring warming on leaf onset is nonlinear, better represented by a logistical function of temperature than by the linear function currently implemented in biosphere models. The optimized base temperatures for thermal accumulation and the optimal chilling temperatures are species-dependent and average at 6.9 and 0.2 degrees C, respectively. Overall, plants' chilling requirement is not a constant, and more chilling generally results in less requirement of thermal accumulation for leaf onset. Our results clearly demonstrate multiple deficiencies of the parameters (e.g., base temperature) and algorithms (e.g., method for calculating GDD) in conventional phenology models to represent leaf onset. Therefore, this study not only advances our mechanistic and quantitative understanding of temperature controls on leaf onset but also provides critical information for improving existing phenology models. |
| 收录类别 | SCI |
| WOS关键词 | TERRESTRIAL BIOSPHERE MODEL ; GLOBAL VEGETATION MODEL ; SHUFFLED COMPLEX EVOLUTION ; CLIMATE-CHANGE ; GREEN-UP ; REPRODUCTIVE PHENOLOGY ; HEAT REQUIREMENT ; DORMANCY RELEASE ; TIBETAN PLATEAU ; TREE PHENOLOGY |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000428879800019 |
| 出版者 | WILEY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558152 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yuan, Wenping |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Gansu, Peoples R China 2.Univ Libre Bruxelles, Dept Geosci Environm & Soc, Brussels, Belgium 3.Natl Engn Lab Appl Technol Forestry & Ecol South, Changsha, Hunan, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Haicheng,Liu, Shuguang,Regnier, Pierre,et al. New insights on plant phenological response to temperature revealed from long-term widespread observations in China[J]. GLOBAL CHANGE BIOLOGY,2018,24(5):2066-2078. |
| APA | Zhang, Haicheng,Liu, Shuguang,Regnier, Pierre,&Yuan, Wenping.(2018).New insights on plant phenological response to temperature revealed from long-term widespread observations in China.GLOBAL CHANGE BIOLOGY,24(5),2066-2078. |
| MLA | Zhang, Haicheng,et al."New insights on plant phenological response to temperature revealed from long-term widespread observations in China".GLOBAL CHANGE BIOLOGY 24.5(2018):2066-2078. |
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来源：寒区旱区环境与工程研究所
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