Uncovering the large increases of thermal units during crop phenological phases in China since 1981
文献类型：期刊论文
| 作者 | Zhang, Ermei1,2; Liu, Yujie1,2; Zhang, Jie1,2,3; Shi, Zhaoyang1,2; Huang, Shuyuan1,2; Liu, Junjie1,2; Pan, Tao1,2 |
| 刊名 | EUROPEAN JOURNAL OF AGRONOMY
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 170页码:127721 |
| 关键词 | Thermal unit Crop models Crop phenology Dynamic changes China |
| ISSN号 | 1161-0301 |
| DOI | 10.1016/j.eja.2025.127721 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Thermal unit (TU) is a critical genetic trait of crops and parameter in crop models. Understanding changes in TU is essential to better comprehend climate adaptation and enhance crop model simulations. However, trends in the field TU at a large scale remain largely unknown and lead to traditional crop modeling framework assuming a fixed TU. Here, using the records for multiple crop (wheat, rice and maize) phenological dates and varieties at 206 agro-meteorological stations across China from 1981 to 2018, we found that (1) the number of varieties on average reached 10 for spring wheat, 14 for winter wheat, 18 for early rice, 17 for single rice, 16 for late rice, 11 for spring maize, 13 for summer maize and 17 for interplanting maize from 1981 to 2018 across China, respectively. (2) TU of these successively replaced varieties during the whole growing period significantly (P < 0.05) increased by 5.68, 2.44, 2.48, 2.38, 1.67, 5.31, 1.16, 3.78 degrees C d/a for spring wheat, winter wheat, early rice, single rice, late rice, spring maize, summer maize and interplanting maize across China, respectively. (3) The significantly positive correlations (R > 0.40, P < 0.01) between mean temperature and TU during the whole growing period for wheat, rice and maize were found. This observation-based evidence assists breeders in keeping pace with climate change to ensure food security and supports global crop model development. |
| URL标识 | 查看原文 |
| WOS关键词 | WINTER-WHEAT YIELD ; CLIMATE-CHANGE ; MAIZE ; TEMPERATURE ; IMPACTS |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001509987900001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/214586]  |
| 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 | Liu, Yujie |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Tsinghua Univ, Inst Global Change Studies, Dept Earth Syst Sci, Minist Educ,Key Lab Earth Syst Modeling, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ermei,Liu, Yujie,Zhang, Jie,et al. Uncovering the large increases of thermal units during crop phenological phases in China since 1981[J]. EUROPEAN JOURNAL OF AGRONOMY,2025,170:127721. |
| APA | Zhang, Ermei.,Liu, Yujie.,Zhang, Jie.,Shi, Zhaoyang.,Huang, Shuyuan.,...&Pan, Tao.(2025).Uncovering the large increases of thermal units during crop phenological phases in China since 1981.EUROPEAN JOURNAL OF AGRONOMY,170,127721. |
| MLA | Zhang, Ermei,et al."Uncovering the large increases of thermal units during crop phenological phases in China since 1981".EUROPEAN JOURNAL OF AGRONOMY 170(2025):127721. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。