Effects of Climatic Fluctuations on the First Flowering Date and Its Thermal Requirements for 28 Ornamental Plants in Xi'an, China
文献类型：期刊论文
| 作者 | Huang, Wenjie1,4; Dai, Junhu3; Gao, Xinyue2; Tao, Zexing3 |
| 刊名 | HORTICULTURAE
 |
| 出版日期 | 2025-07-02 |
| 卷号 | 11期号:7页码:772 |
| 关键词 | climate change flowering phenology abnormal climate phenological model |
| DOI | 10.3390/horticulturae11070772 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Ornamental plants play a crucial role in the mitigation of urban heat islands. Recent decades have seen an increased frequency of abnormal climatic events like warm springs, but how these climatic events impact plant phenology in ornamental plants in urban areas is unclear. This study examines how climate fluctuations affect the flowering patterns (1963-2018) and thermal requirements of 28 woody ornamental species in Xi'an, a principal city in Central China. Years were classified as cold (<13.3 degrees C), normal (between 13.3 and 17.2 degrees C), or warm (>17.2 degrees C) based on March-May temperatures. The results show that the first flowering dates (FFDs) advanced by 10.63 days in warm years but were delayed by 6.14 days in cold years compared to normal years. Notably, thermal requirements (5 degrees C threshold) were 11.3% higher in warm years (343.05 vs. 308.09 degrees C days) and 9.4% lower in cold years (279.19 degrees C days), likely due to reduced winter chilling accumulation in warm conditions. While thermal time models accurately predicted FFDs in normal years (error: 0.33-1.37 days), they showed systematic biases in abnormal years-overestimating advancement by 1.56 days in warm years and delays by 3.42 days in cold years. These findings highlight that the current phenological models assuming fixed thermal thresholds may significantly mispredict flowering times under climate variability. Our results emphasize the need to incorporate dynamic thermal requirements and chilling effects when forecasting urban plant responses to climate change, particularly for extreme climate scenarios. |
| URL标识 | 查看原文 |
| WOS关键词 | PHENOLOGY ; TEMPERATURE ; RESPONSES ; BUDBURST |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001536673500001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215588]  |
| 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 | Tao, Zexing |
| 作者单位 | 1.Beijing Union Univ, Teachers Coll, 5 Waiguanxiejie St, Beijing 100011, Peoples R China; 2.Qilu Normal Univ, Sch Geog & Tourism, Jinan 250200, Peoples R China 3.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 4.Beijing Union Univ, Inst Sci & Technol Educ, 5 Waiguanxiejie St, Beijing 100011, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Huang, Wenjie,Dai, Junhu,Gao, Xinyue,et al. Effects of Climatic Fluctuations on the First Flowering Date and Its Thermal Requirements for 28 Ornamental Plants in Xi'an, China[J]. HORTICULTURAE,2025,11(7):772. |
| APA | Huang, Wenjie,Dai, Junhu,Gao, Xinyue,&Tao, Zexing.(2025).Effects of Climatic Fluctuations on the First Flowering Date and Its Thermal Requirements for 28 Ornamental Plants in Xi'an, China.HORTICULTURAE,11(7),772. |
| MLA | Huang, Wenjie,et al."Effects of Climatic Fluctuations on the First Flowering Date and Its Thermal Requirements for 28 Ornamental Plants in Xi'an, China".HORTICULTURAE 11.7(2025):772. |
入库方式： OAI收割
来源：地理科学与资源研究所
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